From dd88eea1ba682f2745d537f896f6ebf4086578f3 Mon Sep 17 00:00:00 2001 From: Hacker-Code-J Date: Thu, 29 May 2025 02:25:40 +0900 Subject: [PATCH] Desktop250529v1 --- .vscode/settings.json | 8 +- CryptoModule | Bin 0 -> 38240 bytes Makefile | 131 +-- doc/cryptomodule_doc.pdf | Bin 569742 -> 569742 bytes include/aes.h | 66 ++ include/config.h | 101 ++ include/mem.h | 35 + include/mode.h | 159 +++ src/block/aes.c | 970 ++++++++++++++++++ src/common/mem.c | 14 + src/main.c | 521 ++++++---- src/mode/cbc128.c | 167 +++ src/mode/ctr128.c | 200 ++++ src/mode/gcm128.c | 850 +++++++++++++++ z_old/Makefile | 108 ++ {include => z_old/include}/ansi_code.h | 0 {include => z_old/include}/api_cryptomodule.h | 0 .../include}/block_cipher/api_block_cipher.h | 0 .../include}/block_cipher/block_cipher_aes.h | 0 .../include}/block_cipher/block_cipher_aria.h | 0 .../include}/block_cipher/block_cipher_lea.h | 0 .../include}/cryptomodule_test.h | 0 .../include}/cryptomodule_utils.h | 0 {include => z_old/include}/mode/api_mode.h | 0 {include => z_old/include}/mode/mode_cbc.h | 0 {include => z_old/include}/mode/mode_ctr.h | 0 {include => z_old/include}/mode/mode_ecb.h | 0 {include => z_old/include}/mode/mode_gcm.h | 0 {include => z_old/include}/sha/sha2.h | 0 {sage => z_old/sage}/aes.sage | 0 {sage => z_old/sage}/aes.sage.py | 0 .../src}/block_cipher/block_cipher_aes.c | 0 .../src}/block_cipher/block_cipher_aria.c | 0 .../src}/block_cipher/block_cipher_factory.c | 0 .../src}/block_cipher/block_cipher_lea.c | 0 {src => z_old/src}/cryptomodule_core.c | 0 {src => z_old/src}/cryptomodule_test.c | 0 {src => z_old/src}/cryptomodule_utils.c | 0 z_old/src/main.c | 236 +++++ {src => z_old/src}/mode/mode_cbc.c | 0 {src => z_old/src}/mode/mode_ctr.c | 0 {src => z_old/src}/mode/mode_ecb.c | 0 {src => z_old/src}/mode/mode_factory.c | 0 {src => z_old/src}/mode/mode_gcm.c | 0 {src => z_old/src}/mode/padding.c | 0 {src => z_old/src}/sha/sha2.c | 0 {src => z_old/src}/sha/sha2_core.c | 0 47 files changed, 3241 insertions(+), 325 deletions(-) create mode 100755 CryptoModule create mode 100644 include/aes.h create mode 100644 include/config.h create mode 100644 include/mem.h create mode 100644 include/mode.h create mode 100644 src/block/aes.c create mode 100644 src/common/mem.c create mode 100644 src/mode/cbc128.c create mode 100644 src/mode/ctr128.c create mode 100644 src/mode/gcm128.c create mode 100644 z_old/Makefile rename {include => z_old/include}/ansi_code.h (100%) rename {include => z_old/include}/api_cryptomodule.h (100%) rename {include => z_old/include}/block_cipher/api_block_cipher.h (100%) rename {include => z_old/include}/block_cipher/block_cipher_aes.h (100%) rename {include => z_old/include}/block_cipher/block_cipher_aria.h (100%) rename {include => z_old/include}/block_cipher/block_cipher_lea.h (100%) rename {include => z_old/include}/cryptomodule_test.h (100%) rename {include => z_old/include}/cryptomodule_utils.h (100%) rename {include => z_old/include}/mode/api_mode.h (100%) rename {include => z_old/include}/mode/mode_cbc.h (100%) rename {include => z_old/include}/mode/mode_ctr.h (100%) rename {include => z_old/include}/mode/mode_ecb.h (100%) rename {include => z_old/include}/mode/mode_gcm.h (100%) rename {include => z_old/include}/sha/sha2.h (100%) rename {sage => z_old/sage}/aes.sage (100%) rename {sage => z_old/sage}/aes.sage.py (100%) rename {src => z_old/src}/block_cipher/block_cipher_aes.c (100%) rename {src => z_old/src}/block_cipher/block_cipher_aria.c (100%) rename {src => z_old/src}/block_cipher/block_cipher_factory.c (100%) rename {src => z_old/src}/block_cipher/block_cipher_lea.c (100%) rename {src => z_old/src}/cryptomodule_core.c (100%) rename {src => z_old/src}/cryptomodule_test.c (100%) rename {src => z_old/src}/cryptomodule_utils.c (100%) create mode 100644 z_old/src/main.c rename {src => z_old/src}/mode/mode_cbc.c (100%) rename {src => z_old/src}/mode/mode_ctr.c (100%) rename {src => z_old/src}/mode/mode_ecb.c (100%) rename {src => z_old/src}/mode/mode_factory.c (100%) rename {src => z_old/src}/mode/mode_gcm.c (100%) rename {src => z_old/src}/mode/padding.c (100%) rename {src => z_old/src}/sha/sha2.c (100%) rename {src => z_old/src}/sha/sha2_core.c (100%) diff --git a/.vscode/settings.json b/.vscode/settings.json index 5c3a115..30ad2a3 100644 --- a/.vscode/settings.json +++ b/.vscode/settings.json @@ -98,7 +98,13 @@ "api_cryptomodule.h": "c", "mode_gcm.h": "c", "mode_ecb.h": "c", - "random": "c" + "random": "c", + "mode.h": "c", + "vector": "c", + "memory": "c", + "system_error": "c", + "string.h": "c", + "bit": "c" }, "files.exclude": { "**/*.vo": true, diff --git a/CryptoModule b/CryptoModule new file mode 100755 index 0000000000000000000000000000000000000000..51f607f21d97a21b39401a14d8a3e4fb193cd526 GIT binary patch literal 38240 zcmeIbd0dp$|NlJ$sHn(bVUl5@VPUB;4yNSB-~iX?prp8!1_-DmF0rJRDT)hMBT8ne zZECCST1K`hxbOR}nR_5ExbM#WJlDdOetv!K@AtkRzdyPj4(B@OI_F&HywCeQ&+A-s 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zox&B%m+e2Z)H3>g^cwVXdR%-!9!EHy{f@&Rgc+0VM#{e#O=)Dyk@Q&rMM zTg6c^)W=@EqW%oaQo}`>;TjTc%13X%&fl7(>1|g_s6R`ms^P3E4yWH&&nvdC_bNYW QnwmrWMf-|Jm8jwW0o_hi5dZ)H literal 0 HcmV?d00001 diff --git a/Makefile b/Makefile index dbb45de..5005635 100644 --- a/Makefile +++ b/Makefile @@ -1,108 +1,33 @@ -############################################################################### -# Makefile for a CryptoModule -# -# Targets: -# build : Compile + link everything into an executable -# run : Run the resulting binary -# clean : Remove all build artifacts -# rebuild : Clean first, then build -# valgrind: Run the binary under Valgrind for memory checking -# asan : Build with AddressSanitizer enabled and run -# gdb : Build with debugging symbols and launch GDB for in-depth inspection -# inspect : Inspect the binary with nm and objdump -# TBA -############################################################################### - -# --- Project-wide settings --- -CC := gcc -CFLAGS := -std=c99 -g -O2 -Wall -Wextra -I. -Iinclude -Isrc - -# Name of the final executable -TARGET := cryptomodule-demo - -# Directory for object files and for final binary -OBJ_DIR := build -BIN_DIR := bin - -# Automatically find all .c files in src (including subdirectories) -SRCS := $(shell find src -name '*.c') - -# Generate a list of object files by converting: -# src/xxx.c ---> build/xxx.o (preserving the subdirectory structure relative to src) -OBJS := $(patsubst src/%.c, $(OBJ_DIR)/%.o, $(SRCS)) - -# --- Phony targets (not actual files) --- -.PHONY: build run clean rebuild all - -# 'all' can default to 'build' -all: build - -############################################################################### -# 1) build : compile + link -############################################################################### -build: $(BIN_DIR)/$(TARGET) - -# Link step: gather all objects into a single executable -$(BIN_DIR)/$(TARGET): $(OBJS) - @echo "[LINK] Linking objects to create $@" - @mkdir -p $(BIN_DIR) - $(CC) $(CFLAGS) $^ -o $@ - -# Compile step: For each .c -> .o -$(OBJ_DIR)/%.o: src/%.c - @echo "[CC] Compiling $< into $@" +# Compact Makefile for CryptoModule +CC := gcc +CFLAGS := -std=c99 -O2 -Wall -Wextra -Iinclude +SRCDIR := src +OBJDIR := obj +TARGET := CryptoModule + +SOURCES := $(SRCDIR)/main.c \ + $(SRCDIR)/block/aes.c \ + $(SRCDIR)/common/mem.c \ + $(SRCDIR)/mode/cbc128.c $(SRCDIR)/mode/ctr128.c $(SRCDIR)/mode/gcm128.c +OBJECTS := $(patsubst $(SRCDIR)/%.c,$(OBJDIR)/%.o,$(SOURCES)) +DEPS := $(OBJECTS:.o=.d) + +.PHONY: all run clean rebuild +all: $(TARGET) + +$(TARGET): $(OBJECTS) + $(CC) $(CFLAGS) -o $@ $^ + +$(OBJDIR)/%.o: $(SRCDIR)/%.c @mkdir -p $(dir $@) - $(CC) $(CFLAGS) -c $< -o $@ + $(CC) $(CFLAGS) -MMD -MP -c $< -o $@ -############################################################################### -# 2) run : run the resulting binary -############################################################################### -run: build - @echo "[RUN] Running $(BIN_DIR)/$(TARGET)" - @./$(BIN_DIR)/$(TARGET) - -############################################################################### -# 3) clean : remove build artifacts -############################################################################### -clean: - @echo "[CLEAN] Removing build artifacts..." - rm -rf $(OBJ_DIR) $(BIN_DIR) - @echo "[CLEAN] Removing *.req and *.rsp files in testvectors folder..." - find testvectors -type f \( -name '*.req' -o -name '*.rsp' \) -delete +-include $(DEPS) -############################################################################### -# 4) rebuild : clean + build -############################################################################### -rebuild: clean build +run: all + ./$(TARGET) -############################################################################### -# 5) valgrind : run the binary under Valgrind for memory checking -############################################################################### -valgrind: build - @echo "[VALGRIND] Running Valgrind..." - valgrind --leak-check=full ./$(BIN_DIR)/$(TARGET) - -############################################################################### -# 6) asan : build with AddressSanitizer enabled and run -############################################################################### -asan: CFLAGS += -fsanitize=address -asan: clean build - @echo "[ASAN] Running with AddressSanitizer..." - ./$(BIN_DIR)/$(TARGET) - -############################################################################### -# 7) gdb : Build with debugging symbols and launch GDB for in-depth inspection -############################################################################### -gdb: CFLAGS += -g -gdb: clean build - @echo "[GDB] Launching GDB..." - gdb $(BIN_DIR)/$(TARGET) +clean: + rm -rf $(OBJDIR) $(TARGET) -############################################################################### -# 8) inspect : Inspect the binary with nm and objdump -############################################################################### -inspect: build - @echo "[INSPECT] Listing symbols with nm..." - nm $(BIN_DIR)/$(TARGET) - @echo "[INSPECT] Listing symbols with objdump..." - objdump -t $(BIN_DIR)/$(TARGET) \ No newline at end of file +rebuild: clean all diff --git a/doc/cryptomodule_doc.pdf b/doc/cryptomodule_doc.pdf index 6786c26cc363587e249c31a6326a776fb268b752..332669e65a2d5266ea83e610732ff3df3063a2ce 100644 GIT binary patch delta 163 zcmeBstkm~dX~PQ+e(yyEr>@#BZT(o!7NBfpI$42Dq?wzuotu*ph?#(x8Hibcm=%cG zfS7$dHz&ujIjoij28Nc?uPx<}gD|)MT*`5Q$=S`)$i>Cb)ZEO%$k4#Z($T=&(AC`4 Z$@#BZT(o!=KtTyWU>OANHaHQJ2xjI5HkTWGZ3=?F)I+W z0Wte_ZcdJ4b6715EewpOUt7u{2Vrjixs>Aqle4p>fu*6Fv6-uxtAVqVp@FlTxrM2z askxbnnWKS|tDBvI4Iw4lc~){XaR3175-mdj diff --git a/include/aes.h b/include/aes.h new file mode 100644 index 0000000..c9b2d46 --- /dev/null +++ b/include/aes.h @@ -0,0 +1,66 @@ +/* File: include/aes.h */ +/* + * Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include "config.h" +#include "mode.h" + +#ifndef AES_H +#define AES_H + +/** + * @file aes.h + * @brief Header file for AES block cipher API. + * + * This file defines the AES block cipher API, including initialization, + * encryption/decryption, and disposal functions. + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#define AES_BLOCK_SIZE 16 + +#define AES_ENCRYPT 1 +#define AES_DECRYPT 0 + +#define AES_MAXNR 14 + +/* This should be a hidden type, but EVP requires that the size be known */ +struct aes_key_st { + u32 rd_key[4 * (AES_MAXNR + 1)]; + int rounds; +}; +typedef struct aes_key_st AES_KEY; + +int AES_set_encrypt_key(const u8 *userKey, const int bits, AES_KEY *key); +int AES_set_decrypt_key(const u8 *userKey, const int bits, AES_KEY *key); + +void AES_encrypt(const u8 *in, u8 *out, const AES_KEY *key); +void AES_decrypt(const u8 *in, u8 *out, const AES_KEY *key); + +// void aes_block(const u8 *in, u8 *out, const void *key) { +// const AES_KEY *key = (const AES_KEY*)key; +// AES_encrypt(in, out, key); +// } + +// void aes_ctr(const u8 *in, u8 *out, size_t len, +// const void *key, u8 ivec[16], +// u8 ecount_buf[16], u32 *num) { +// AES_ctr128_encrypt(in, out, len, +// (const AES_KEY*)key, +// ivec, ecount_buf, num); +// } + +#ifdef __cplusplus +} +#endif + + #endif // AES_H \ No newline at end of file diff --git a/include/config.h b/include/config.h new file mode 100644 index 0000000..cd8648d --- /dev/null +++ b/include/config.h @@ -0,0 +1,101 @@ +/* File: include/api.h */ + +#ifndef CRYPTOMODULE_API_H +#define CRYPTOMODULE_API_H + +/* ----------------------------------------------------------------------------- + * Master API header for CryptoModule. + * This file aggregates all relevant algorithm headers into a single include. + * ---------------------------------------------------------------------------*/ + +#include // For FILE +#include // For malloc, free +#include // For bool +#include // For assert +#include // For memcpy, memset +#include // For uint8_t, uint32_t, etc. +#include // For size_t + +typedef int8_t i8; +typedef int32_t i32; +typedef int64_t i64; + +typedef uint8_t u8; +typedef uint32_t u32; +typedef uint64_t u64; + +/* Optionally define convenience ��enums��, ��error codes��, or ��global�� functions*/ +// typedef enum { +// CRYPTOMODULE_OK = 0, +// CRYPTOMODULE_ERR_INVALID_INPUT, +// CRYPTOMODULE_ERR_CRYPTO_FAILURE, +// /* ... */ +// } cryptomodule_status_t; + +/* Example of a top-level initialization function. */ +#ifdef __cplusplus +extern "C" { +#endif + +// cryptomodule_status_t cryptomodule_init(void); +// cryptomodule_status_t cryptomodule_cleanup(void); + +/* Crypto Module */ +// typedef struct { +// const char *name; +// cryptomodule_status_t (*init)(void); +// cryptomodule_status_t (*cleanup)(void); +// } CryptoModuleApi; +// typedef struct { +// const CryptoModuleApi *api; +// } CryptoModuleContext; +// typedef struct { +// const CryptoModuleApi *api; +// CryptoModuleContext *ctx; +// } CryptoModuleInternal; + +/* Core Header */ +// #include "cryptomodule_utils.h" +// #include "cryptomodule_test.h" + +/* Block ciphers */ +// #include "block_cipher/api_block_cipher.h" +// #include "block_cipher/block_cipher_aes.h" +// #include "block_cipher/block_cipher_aria.h" +// #include "block_cipher/block_cipher_lea.h" + +/* Modes of operation */ +// #include "mode/api_mode.h" +// #include "mode/mode_ecb.h" +// #include "mode/mode_cbc.h" +// #include "mode/mode_ctr.h" +// #include "mode/mode_gcm.h" + +/* RNG */ +// #include "ctr_drbg.h" + +/* Hash functions */ +// #include "sha2.h" +// #include "sha3.h" +// #include "lsh.h" + +/* MAC */ +// #include "hmac.h" + +/* KDF */ +// #include "pbkdf.h" + +/* Key Setup */ +// #include "ecdh.h" + +/* Signature */ +// #include "rsapss.h" +// #include "ecdsa.h" +// #include "eckcdsa.h" + + +#ifdef __cplusplus +} +#endif + +#endif /* CRYPTOMODULE_API_H */ diff --git a/include/mem.h b/include/mem.h new file mode 100644 index 0000000..c8628ca --- /dev/null +++ b/include/mem.h @@ -0,0 +1,35 @@ +/* include/mem.h */ + +#include "config.h" + +#ifndef MEM_H +#define MEM_H + +/** + * @file mem.h + * @brief Header file for memory-related functions. + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @brief Compare two memory blocks for equality. + * + * This function compares two memory blocks of specified length and returns + * 0 if they are equal, or a non-zero value if they differ. + * + * @param in_a Pointer to the first memory block. + * @param in_b Pointer to the second memory block. + * @param len Length of the memory blocks to compare. + * @return 0 if equal, non-zero if different. + */ +int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len); + + +#ifdef __cplusplus +} +#endif + +#endif // MEM_H \ No newline at end of file diff --git a/include/mode.h b/include/mode.h new file mode 100644 index 0000000..5f299c5 --- /dev/null +++ b/include/mode.h @@ -0,0 +1,159 @@ +/* File: include/mode.h */ +/* + * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include "config.h" +#include "mem.h" + +#ifndef MODE_H +#define MODE_H + +/** + * @file mode.h + * @brief Header file for mode of operation APIs. + */ + + +# define U64(C) C##ULL + +#define STRICT_ALIGNMENT 1 +#ifndef PEDANTIC +# if defined(__i386) || defined(__i386__) || \ + defined(__x86_64) || defined(__x86_64__) || \ + defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \ + defined(__aarch64__) || \ + defined(__s390__) || defined(__s390x__) +# undef STRICT_ALIGNMENT +# endif +#endif + +#if defined(_MSC_VER) + #include + #define BSWAP8(x) _byteswap_uint64(x) + #define BSWAP4(x) _byteswap_ulong (x) +#elif defined(__GNUC__) || defined(__clang__) + /* these are in GCC/Clang even on non-x86 */ + #define BSWAP8(x) __builtin_bswap64(x) + #define BSWAP4(x) __builtin_bswap32(x) +#else + /* Portable fallback */ + static inline uint64_t BSWAP8(uint64_t x) { + return ((x & 0x00000000000000FFULL) << 56) | + ((x & 0x000000000000FF00ULL) << 40) | + ((x & 0x0000000000FF0000ULL) << 24) | + ((x & 0x00000000FF000000ULL) << 8) | + ((x & 0x000000FF00000000ULL) >> 8) | + ((x & 0x0000FF0000000000ULL) >> 24) | + ((x & 0x00FF000000000000ULL) >> 40) | + ((x & 0xFF00000000000000ULL) >> 56); + } + static inline uint32_t BSWAP4(uint32_t x) { + return ((x & 0x000000FFU) << 24) | + ((x & 0x0000FF00U) << 8) | + ((x & 0x00FF0000U) >> 8) | + ((x & 0xFF000000U) >> 24); + } +#endif + +#if defined(BSWAP4) && !defined(STRICT_ALIGNMENT) +# define GETU32(p) BSWAP4(*(const u32 *)(p)) +# define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v) +#else +# define GETU32(p) ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)[3]) +# define PUTU32(p,v) ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((v)>>8),(p)[3]=(u8)(v)) +#endif + +/*- GCM definitions */ typedef struct { + u64 hi, lo; +} u128; + +#ifdef __cplusplus +extern "C" { +#endif + +typedef void (*block128_f) (const u8 in[16], + u8 out[16], const void *key); + +typedef void (*cbc128_f) (const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], int enc); + +typedef void (*ctr128_f) (const u8 *in, u8 *out, + size_t blocks, const void *key, + const u8 ivec[16]); + +void CRYPTO_cbc128_encrypt(const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], block128_f block); +void CRYPTO_cbc128_decrypt(const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], block128_f block); + +void CRYPTO_ctr128_encrypt(const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], + u8 ecount_buf[16], unsigned int *num, + block128_f block); +void CRYPTO_ctr128_encrypt_ctr32(const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], + u8 ecount_buf[16], + unsigned int *num, ctr128_f func); + +void gcm_init_4bit(u128 Htable[16], const u64 H[2]); +void gcm_gmult_4bit(u64 Xi[2], const u128 Htable[16]); +void gcm_ghash_4bit(u64 Xi[2], const u128 Htable[16], const u8 *inp, size_t len); + +typedef void (*gcm_init_fn)(u128 Htable[16], const u64 H[2]); +typedef void (*gcm_ghash_fn)(u64 Xi[2], const u128 Htable[16], const u8 *inp, size_t len); +typedef void (*gcm_gmult_fn)(u64 Xi[2], const u128 Htable[16]); +struct gcm_funcs_st { + gcm_init_fn ginit; + gcm_ghash_fn ghash; + gcm_gmult_fn gmult; +}; + +struct gcm128_context { + /* Following 6 names follow names in GCM specification */ + union { + u64 u[2]; + u32 d[4]; + u8 c[16]; + size_t t[16 / sizeof(size_t)]; + } Yi, EKi, EK0, len, Xi, H; + /* + * Relative position of Yi, EKi, EK0, len, Xi, H and pre-computed Htable is + * used in some assembler modules, i.e. don't change the order! + */ + u128 Htable[16]; + struct gcm_funcs_st funcs; + u32 mres, ares; + block128_f block; + void *key; +}; + +typedef struct gcm128_context GCM128_CONTEXT; + +GCM128_CONTEXT *CRYPTO_gcm128_new(void *key, block128_f block); +void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, void *key, block128_f block); +void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const u8 *iv, size_t len); +int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const u8 *aad, size_t len); +int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const u8 *in, u8 *out, size_t len); +int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const u8 *in, u8 *out, size_t len); +int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, const u8 *in, u8 *out, size_t len, ctr128_f stream); +int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, const u8 *in, u8 *out, size_t len, ctr128_f stream); +int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx, const u8 *tag, size_t len); +void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, u8 *tag, size_t len); +void CRYPTO_gcm128_release(GCM128_CONTEXT *ctx); + +#ifdef __cplusplus +} +#endif + +#endif // MODE_H \ No newline at end of file diff --git a/src/block/aes.c b/src/block/aes.c new file mode 100644 index 0000000..c780313 --- /dev/null +++ b/src/block/aes.c @@ -0,0 +1,970 @@ +#include "aes.h" + +static const u32 Te0[256] = { + 0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU, + 0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U, + 0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU, + 0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU, + 0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U, + 0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU, + 0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU, + 0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU, + 0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU, + 0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU, + 0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U, + 0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU, + 0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU, + 0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U, + 0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU, + 0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU, + 0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU, + 0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU, + 0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU, + 0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U, + 0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU, + 0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU, + 0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU, + 0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU, + 0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U, + 0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U, + 0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U, + 0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U, + 0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU, + 0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U, + 0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U, + 0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU, + 0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU, + 0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U, + 0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U, + 0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U, + 0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU, + 0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U, + 0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU, + 0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U, + 0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU, + 0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U, + 0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U, + 0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU, + 0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U, + 0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U, + 0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U, + 0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U, + 0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U, + 0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U, + 0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U, + 0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U, + 0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU, + 0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U, + 0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U, + 0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U, + 0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U, + 0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U, + 0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U, + 0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU, + 0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U, + 0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U, + 0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U, + 0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU, +}; +static const u32 Te1[256] = { + 0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU, + 0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U, + 0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU, + 0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U, + 0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU, + 0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U, + 0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU, + 0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U, + 0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U, + 0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU, + 0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U, + 0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U, + 0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U, + 0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU, + 0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U, + 0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U, + 0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU, + 0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U, + 0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, 0xce7db3b3U, + 0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U, + 0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU, + 0x60402020U, 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU, + 0xbed46a6aU, 0x468dcbcbU, 0xd967bebeU, 0x4b723939U, + 0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, 0x4a85cfcfU, + 0x6bbbd0d0U, 0x2ac5efefU, 0xe54faaaaU, 0x16edfbfbU, + 0xc5864343U, 0xd79a4d4dU, 0x55663333U, 0x94118585U, + 0xcf8a4545U, 0x10e9f9f9U, 0x06040202U, 0x81fe7f7fU, + 0xf0a05050U, 0x44783c3cU, 0xba259f9fU, 0xe34ba8a8U, + 0xf3a25151U, 0xfe5da3a3U, 0xc0804040U, 0x8a058f8fU, + 0xad3f9292U, 0xbc219d9dU, 0x48703838U, 0x04f1f5f5U, + 0xdf63bcbcU, 0xc177b6b6U, 0x75afdadaU, 0x63422121U, + 0x30201010U, 0x1ae5ffffU, 0x0efdf3f3U, 0x6dbfd2d2U, + 0x4c81cdcdU, 0x14180c0cU, 0x35261313U, 0x2fc3ececU, + 0xe1be5f5fU, 0xa2359797U, 0xcc884444U, 0x392e1717U, + 0x5793c4c4U, 0xf255a7a7U, 0x82fc7e7eU, 0x477a3d3dU, + 0xacc86464U, 0xe7ba5d5dU, 0x2b321919U, 0x95e67373U, + 0xa0c06060U, 0x98198181U, 0xd19e4f4fU, 0x7fa3dcdcU, + 0x66442222U, 0x7e542a2aU, 0xab3b9090U, 0x830b8888U, + 0xca8c4646U, 0x29c7eeeeU, 0xd36bb8b8U, 0x3c281414U, + 0x79a7dedeU, 0xe2bc5e5eU, 0x1d160b0bU, 0x76addbdbU, + 0x3bdbe0e0U, 0x56643232U, 0x4e743a3aU, 0x1e140a0aU, + 0xdb924949U, 0x0a0c0606U, 0x6c482424U, 0xe4b85c5cU, + 0x5d9fc2c2U, 0x6ebdd3d3U, 0xef43acacU, 0xa6c46262U, + 0xa8399191U, 0xa4319595U, 0x37d3e4e4U, 0x8bf27979U, + 0x32d5e7e7U, 0x438bc8c8U, 0x596e3737U, 0xb7da6d6dU, + 0x8c018d8dU, 0x64b1d5d5U, 0xd29c4e4eU, 0xe049a9a9U, + 0xb4d86c6cU, 0xfaac5656U, 0x07f3f4f4U, 0x25cfeaeaU, + 0xafca6565U, 0x8ef47a7aU, 0xe947aeaeU, 0x18100808U, + 0xd56fbabaU, 0x88f07878U, 0x6f4a2525U, 0x725c2e2eU, + 0x24381c1cU, 0xf157a6a6U, 0xc773b4b4U, 0x5197c6c6U, + 0x23cbe8e8U, 0x7ca1ddddU, 0x9ce87474U, 0x213e1f1fU, + 0xdd964b4bU, 0xdc61bdbdU, 0x860d8b8bU, 0x850f8a8aU, + 0x90e07070U, 0x427c3e3eU, 0xc471b5b5U, 0xaacc6666U, + 0xd8904848U, 0x05060303U, 0x01f7f6f6U, 0x121c0e0eU, + 0xa3c26161U, 0x5f6a3535U, 0xf9ae5757U, 0xd069b9b9U, + 0x91178686U, 0x5899c1c1U, 0x273a1d1dU, 0xb9279e9eU, + 0x38d9e1e1U, 0x13ebf8f8U, 0xb32b9898U, 0x33221111U, + 0xbbd26969U, 0x70a9d9d9U, 0x89078e8eU, 0xa7339494U, + 0xb62d9b9bU, 0x223c1e1eU, 0x92158787U, 0x20c9e9e9U, + 0x4987ceceU, 0xffaa5555U, 0x78502828U, 0x7aa5dfdfU, + 0x8f038c8cU, 0xf859a1a1U, 0x80098989U, 0x171a0d0dU, + 0xda65bfbfU, 0x31d7e6e6U, 0xc6844242U, 0xb8d06868U, + 0xc3824141U, 0xb0299999U, 0x775a2d2dU, 0x111e0f0fU, + 0xcb7bb0b0U, 0xfca85454U, 0xd66dbbbbU, 0x3a2c1616U, +}; +static const u32 Te2[256] = { + 0x63a5c663U, 0x7c84f87cU, 0x7799ee77U, 0x7b8df67bU, + 0xf20dfff2U, 0x6bbdd66bU, 0x6fb1de6fU, 0xc55491c5U, + 0x30506030U, 0x01030201U, 0x67a9ce67U, 0x2b7d562bU, + 0xfe19e7feU, 0xd762b5d7U, 0xabe64dabU, 0x769aec76U, + 0xca458fcaU, 0x829d1f82U, 0xc94089c9U, 0x7d87fa7dU, + 0xfa15effaU, 0x59ebb259U, 0x47c98e47U, 0xf00bfbf0U, + 0xadec41adU, 0xd467b3d4U, 0xa2fd5fa2U, 0xafea45afU, + 0x9cbf239cU, 0xa4f753a4U, 0x7296e472U, 0xc05b9bc0U, + 0xb7c275b7U, 0xfd1ce1fdU, 0x93ae3d93U, 0x266a4c26U, + 0x365a6c36U, 0x3f417e3fU, 0xf702f5f7U, 0xcc4f83ccU, + 0x345c6834U, 0xa5f451a5U, 0xe534d1e5U, 0xf108f9f1U, + 0x7193e271U, 0xd873abd8U, 0x31536231U, 0x153f2a15U, + 0x040c0804U, 0xc75295c7U, 0x23654623U, 0xc35e9dc3U, + 0x18283018U, 0x96a13796U, 0x050f0a05U, 0x9ab52f9aU, + 0x07090e07U, 0x12362412U, 0x809b1b80U, 0xe23ddfe2U, + 0xeb26cdebU, 0x27694e27U, 0xb2cd7fb2U, 0x759fea75U, + 0x091b1209U, 0x839e1d83U, 0x2c74582cU, 0x1a2e341aU, + 0x1b2d361bU, 0x6eb2dc6eU, 0x5aeeb45aU, 0xa0fb5ba0U, + 0x52f6a452U, 0x3b4d763bU, 0xd661b7d6U, 0xb3ce7db3U, + 0x297b5229U, 0xe33edde3U, 0x2f715e2fU, 0x84971384U, + 0x53f5a653U, 0xd168b9d1U, 0x00000000U, 0xed2cc1edU, + 0x20604020U, 0xfc1fe3fcU, 0xb1c879b1U, 0x5bedb65bU, + 0x6abed46aU, 0xcb468dcbU, 0xbed967beU, 0x394b7239U, + 0x4ade944aU, 0x4cd4984cU, 0x58e8b058U, 0xcf4a85cfU, + 0xd06bbbd0U, 0xef2ac5efU, 0xaae54faaU, 0xfb16edfbU, + 0x43c58643U, 0x4dd79a4dU, 0x33556633U, 0x85941185U, + 0x45cf8a45U, 0xf910e9f9U, 0x02060402U, 0x7f81fe7fU, + 0x50f0a050U, 0x3c44783cU, 0x9fba259fU, 0xa8e34ba8U, + 0x51f3a251U, 0xa3fe5da3U, 0x40c08040U, 0x8f8a058fU, + 0x92ad3f92U, 0x9dbc219dU, 0x38487038U, 0xf504f1f5U, + 0xbcdf63bcU, 0xb6c177b6U, 0xda75afdaU, 0x21634221U, + 0x10302010U, 0xff1ae5ffU, 0xf30efdf3U, 0xd26dbfd2U, + 0xcd4c81cdU, 0x0c14180cU, 0x13352613U, 0xec2fc3ecU, + 0x5fe1be5fU, 0x97a23597U, 0x44cc8844U, 0x17392e17U, + 0xc45793c4U, 0xa7f255a7U, 0x7e82fc7eU, 0x3d477a3dU, + 0x64acc864U, 0x5de7ba5dU, 0x192b3219U, 0x7395e673U, + 0x60a0c060U, 0x81981981U, 0x4fd19e4fU, 0xdc7fa3dcU, + 0x22664422U, 0x2a7e542aU, 0x90ab3b90U, 0x88830b88U, + 0x46ca8c46U, 0xee29c7eeU, 0xb8d36bb8U, 0x143c2814U, + 0xde79a7deU, 0x5ee2bc5eU, 0x0b1d160bU, 0xdb76addbU, + 0xe03bdbe0U, 0x32566432U, 0x3a4e743aU, 0x0a1e140aU, + 0x49db9249U, 0x060a0c06U, 0x246c4824U, 0x5ce4b85cU, + 0xc25d9fc2U, 0xd36ebdd3U, 0xacef43acU, 0x62a6c462U, + 0x91a83991U, 0x95a43195U, 0xe437d3e4U, 0x798bf279U, + 0xe732d5e7U, 0xc8438bc8U, 0x37596e37U, 0x6db7da6dU, + 0x8d8c018dU, 0xd564b1d5U, 0x4ed29c4eU, 0xa9e049a9U, + 0x6cb4d86cU, 0x56faac56U, 0xf407f3f4U, 0xea25cfeaU, + 0x65afca65U, 0x7a8ef47aU, 0xaee947aeU, 0x08181008U, + 0xbad56fbaU, 0x7888f078U, 0x256f4a25U, 0x2e725c2eU, + 0x1c24381cU, 0xa6f157a6U, 0xb4c773b4U, 0xc65197c6U, + 0xe823cbe8U, 0xdd7ca1ddU, 0x749ce874U, 0x1f213e1fU, + 0x4bdd964bU, 0xbddc61bdU, 0x8b860d8bU, 0x8a850f8aU, + 0x7090e070U, 0x3e427c3eU, 0xb5c471b5U, 0x66aacc66U, + 0x48d89048U, 0x03050603U, 0xf601f7f6U, 0x0e121c0eU, + 0x61a3c261U, 0x355f6a35U, 0x57f9ae57U, 0xb9d069b9U, + 0x86911786U, 0xc15899c1U, 0x1d273a1dU, 0x9eb9279eU, + 0xe138d9e1U, 0xf813ebf8U, 0x98b32b98U, 0x11332211U, + 0x69bbd269U, 0xd970a9d9U, 0x8e89078eU, 0x94a73394U, + 0x9bb62d9bU, 0x1e223c1eU, 0x87921587U, 0xe920c9e9U, + 0xce4987ceU, 0x55ffaa55U, 0x28785028U, 0xdf7aa5dfU, + 0x8c8f038cU, 0xa1f859a1U, 0x89800989U, 0x0d171a0dU, + 0xbfda65bfU, 0xe631d7e6U, 0x42c68442U, 0x68b8d068U, + 0x41c38241U, 0x99b02999U, 0x2d775a2dU, 0x0f111e0fU, + 0xb0cb7bb0U, 0x54fca854U, 0xbbd66dbbU, 0x163a2c16U, +}; +static const u32 Te3[256] = { + 0x6363a5c6U, 0x7c7c84f8U, 0x777799eeU, 0x7b7b8df6U, + 0xf2f20dffU, 0x6b6bbdd6U, 0x6f6fb1deU, 0xc5c55491U, + 0x30305060U, 0x01010302U, 0x6767a9ceU, 0x2b2b7d56U, + 0xfefe19e7U, 0xd7d762b5U, 0xababe64dU, 0x76769aecU, + 0xcaca458fU, 0x82829d1fU, 0xc9c94089U, 0x7d7d87faU, + 0xfafa15efU, 0x5959ebb2U, 0x4747c98eU, 0xf0f00bfbU, + 0xadadec41U, 0xd4d467b3U, 0xa2a2fd5fU, 0xafafea45U, + 0x9c9cbf23U, 0xa4a4f753U, 0x727296e4U, 0xc0c05b9bU, + 0xb7b7c275U, 0xfdfd1ce1U, 0x9393ae3dU, 0x26266a4cU, + 0x36365a6cU, 0x3f3f417eU, 0xf7f702f5U, 0xcccc4f83U, + 0x34345c68U, 0xa5a5f451U, 0xe5e534d1U, 0xf1f108f9U, + 0x717193e2U, 0xd8d873abU, 0x31315362U, 0x15153f2aU, + 0x04040c08U, 0xc7c75295U, 0x23236546U, 0xc3c35e9dU, + 0x18182830U, 0x9696a137U, 0x05050f0aU, 0x9a9ab52fU, + 0x0707090eU, 0x12123624U, 0x80809b1bU, 0xe2e23ddfU, + 0xebeb26cdU, 0x2727694eU, 0xb2b2cd7fU, 0x75759feaU, + 0x09091b12U, 0x83839e1dU, 0x2c2c7458U, 0x1a1a2e34U, + 0x1b1b2d36U, 0x6e6eb2dcU, 0x5a5aeeb4U, 0xa0a0fb5bU, + 0x5252f6a4U, 0x3b3b4d76U, 0xd6d661b7U, 0xb3b3ce7dU, + 0x29297b52U, 0xe3e33eddU, 0x2f2f715eU, 0x84849713U, + 0x5353f5a6U, 0xd1d168b9U, 0x00000000U, 0xeded2cc1U, + 0x20206040U, 0xfcfc1fe3U, 0xb1b1c879U, 0x5b5bedb6U, + 0x6a6abed4U, 0xcbcb468dU, 0xbebed967U, 0x39394b72U, + 0x4a4ade94U, 0x4c4cd498U, 0x5858e8b0U, 0xcfcf4a85U, + 0xd0d06bbbU, 0xefef2ac5U, 0xaaaae54fU, 0xfbfb16edU, + 0x4343c586U, 0x4d4dd79aU, 0x33335566U, 0x85859411U, + 0x4545cf8aU, 0xf9f910e9U, 0x02020604U, 0x7f7f81feU, + 0x5050f0a0U, 0x3c3c4478U, 0x9f9fba25U, 0xa8a8e34bU, + 0x5151f3a2U, 0xa3a3fe5dU, 0x4040c080U, 0x8f8f8a05U, + 0x9292ad3fU, 0x9d9dbc21U, 0x38384870U, 0xf5f504f1U, + 0xbcbcdf63U, 0xb6b6c177U, 0xdada75afU, 0x21216342U, + 0x10103020U, 0xffff1ae5U, 0xf3f30efdU, 0xd2d26dbfU, + 0xcdcd4c81U, 0x0c0c1418U, 0x13133526U, 0xecec2fc3U, + 0x5f5fe1beU, 0x9797a235U, 0x4444cc88U, 0x1717392eU, + 0xc4c45793U, 0xa7a7f255U, 0x7e7e82fcU, 0x3d3d477aU, + 0x6464acc8U, 0x5d5de7baU, 0x19192b32U, 0x737395e6U, + 0x6060a0c0U, 0x81819819U, 0x4f4fd19eU, 0xdcdc7fa3U, + 0x22226644U, 0x2a2a7e54U, 0x9090ab3bU, 0x8888830bU, + 0x4646ca8cU, 0xeeee29c7U, 0xb8b8d36bU, 0x14143c28U, + 0xdede79a7U, 0x5e5ee2bcU, 0x0b0b1d16U, 0xdbdb76adU, + 0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U, + 0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U, + 0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U, + 0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U, + 0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU, + 0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U, + 0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU, + 0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U, + 0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU, + 0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U, + 0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU, + 0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU, + 0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU, + 0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU, + 0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U, + 0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U, + 0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U, + 0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U, + 0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U, + 0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U, + 0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU, + 0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U, + 0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU, + 0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU, +}; + +static const u32 Td0[256] = { + 0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U, + 0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U, + 0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U, + 0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, 0xb562a38fU, + 0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U, + 0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U, + 0x038f5fe7U, 0x15929c95U, 0xbf6d7aebU, 0x955259daU, + 0xd4be832dU, 0x587421d3U, 0x49e06929U, 0x8ec9c844U, + 0x75c2896aU, 0xf48e7978U, 0x99583e6bU, 0x27b971ddU, + 0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U, + 0x63df4a18U, 0xe51a3182U, 0x97513360U, 0x62537f45U, + 0xb16477e0U, 0xbb6bae84U, 0xfe81a01cU, 0xf9082b94U, + 0x70486858U, 0x8f45fd19U, 0x94de6c87U, 0x527bf8b7U, + 0xab73d323U, 0x724b02e2U, 0xe31f8f57U, 0x6655ab2aU, + 0xb2eb2807U, 0x2fb5c203U, 0x86c57b9aU, 0xd33708a5U, + 0x302887f2U, 0x23bfa5b2U, 0x02036abaU, 0xed16825cU, + 0x8acf1c2bU, 0xa779b492U, 0xf307f2f0U, 0x4e69e2a1U, + 0x65daf4cdU, 0x0605bed5U, 0xd134621fU, 0xc4a6fe8aU, + 0x342e539dU, 0xa2f355a0U, 0x058ae132U, 0xa4f6eb75U, + 0x0b83ec39U, 0x4060efaaU, 0x5e719f06U, 0xbd6e1051U, + 0x3e218af9U, 0x96dd063dU, 0xdd3e05aeU, 0x4de6bd46U, + 0x91548db5U, 0x71c45d05U, 0x0406d46fU, 0x605015ffU, + 0x1998fb24U, 0xd6bde997U, 0x894043ccU, 0x67d99e77U, + 0xb0e842bdU, 0x07898b88U, 0xe7195b38U, 0x79c8eedbU, + 0xa17c0a47U, 0x7c420fe9U, 0xf8841ec9U, 0x00000000U, + 0x09808683U, 0x322bed48U, 0x1e1170acU, 0x6c5a724eU, + 0xfd0efffbU, 0x0f853856U, 0x3daed51eU, 0x362d3927U, + 0x0a0fd964U, 0x685ca621U, 0x9b5b54d1U, 0x24362e3aU, + 0x0c0a67b1U, 0x9357e70fU, 0xb4ee96d2U, 0x1b9b919eU, + 0x80c0c54fU, 0x61dc20a2U, 0x5a774b69U, 0x1c121a16U, + 0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU, + 0x0e090d0bU, 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U, + 0x57f11985U, 0xaf75074cU, 0xee99ddbbU, 0xa37f60fdU, + 0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, 0x5bfb7e34U, + 0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U, + 0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U, + 0x854a247dU, 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU, + 0x1d9e2f4bU, 0xdcb230f3U, 0x0d8652ecU, 0x77c1e3d0U, + 0x2bb3166cU, 0xa970b999U, 0x119448faU, 0x47e96422U, + 0xa8fc8cc4U, 0xa0f03f1aU, 0x567d2cd8U, 0x223390efU, + 0x87494ec7U, 0xd938d1c1U, 0x8ccaa2feU, 0x98d40b36U, + 0xa6f581cfU, 0xa57ade28U, 0xdab78e26U, 0x3fadbfa4U, + 0x2c3a9de4U, 0x5078920dU, 0x6a5fcc9bU, 0x547e4662U, + 0xf68d13c2U, 0x90d8b8e8U, 0x2e39f75eU, 0x82c3aff5U, + 0x9f5d80beU, 0x69d0937cU, 0x6fd52da9U, 0xcf2512b3U, + 0xc8ac993bU, 0x10187da7U, 0xe89c636eU, 0xdb3bbb7bU, + 0xcd267809U, 0x6e5918f4U, 0xec9ab701U, 0x834f9aa8U, + 0xe6956e65U, 0xaaffe67eU, 0x21bccf08U, 0xef15e8e6U, + 0xbae79bd9U, 0x4a6f36ceU, 0xea9f09d4U, 0x29b07cd6U, + 0x31a4b2afU, 0x2a3f2331U, 0xc6a59430U, 0x35a266c0U, + 0x744ebc37U, 0xfc82caa6U, 0xe090d0b0U, 0x33a7d815U, + 0xf104984aU, 0x41ecdaf7U, 0x7fcd500eU, 0x1791f62fU, + 0x764dd68dU, 0x43efb04dU, 0xccaa4d54U, 0xe49604dfU, + 0x9ed1b5e3U, 0x4c6a881bU, 0xc12c1fb8U, 0x4665517fU, + 0x9d5eea04U, 0x018c355dU, 0xfa877473U, 0xfb0b412eU, + 0xb3671d5aU, 0x92dbd252U, 0xe9105633U, 0x6dd64713U, + 0x9ad7618cU, 0x37a10c7aU, 0x59f8148eU, 0xeb133c89U, + 0xcea927eeU, 0xb761c935U, 0xe11ce5edU, 0x7a47b13cU, + 0x9cd2df59U, 0x55f2733fU, 0x1814ce79U, 0x73c737bfU, + 0x53f7cdeaU, 0x5ffdaa5bU, 0xdf3d6f14U, 0x7844db86U, + 0xcaaff381U, 0xb968c43eU, 0x3824342cU, 0xc2a3405fU, + 0x161dc372U, 0xbce2250cU, 0x283c498bU, 0xff0d9541U, + 0x39a80171U, 0x080cb3deU, 0xd8b4e49cU, 0x6456c190U, + 0x7bcb8461U, 0xd532b670U, 0x486c5c74U, 0xd0b85742U, +}; +static const u32 Td1[256] = { + 0x5051f4a7U, 0x537e4165U, 0xc31a17a4U, 0x963a275eU, + 0xcb3bab6bU, 0xf11f9d45U, 0xabacfa58U, 0x934be303U, + 0x552030faU, 0xf6ad766dU, 0x9188cc76U, 0x25f5024cU, + 0xfc4fe5d7U, 0xd7c52acbU, 0x80263544U, 0x8fb562a3U, + 0x49deb15aU, 0x6725ba1bU, 0x9845ea0eU, 0xe15dfec0U, + 0x02c32f75U, 0x12814cf0U, 0xa38d4697U, 0xc66bd3f9U, + 0xe7038f5fU, 0x9515929cU, 0xebbf6d7aU, 0xda955259U, + 0x2dd4be83U, 0xd3587421U, 0x2949e069U, 0x448ec9c8U, + 0x6a75c289U, 0x78f48e79U, 0x6b99583eU, 0xdd27b971U, + 0xb6bee14fU, 0x17f088adU, 0x66c920acU, 0xb47dce3aU, + 0x1863df4aU, 0x82e51a31U, 0x60975133U, 0x4562537fU, + 0xe0b16477U, 0x84bb6baeU, 0x1cfe81a0U, 0x94f9082bU, + 0x58704868U, 0x198f45fdU, 0x8794de6cU, 0xb7527bf8U, + 0x23ab73d3U, 0xe2724b02U, 0x57e31f8fU, 0x2a6655abU, + 0x07b2eb28U, 0x032fb5c2U, 0x9a86c57bU, 0xa5d33708U, + 0xf2302887U, 0xb223bfa5U, 0xba02036aU, 0x5ced1682U, + 0x2b8acf1cU, 0x92a779b4U, 0xf0f307f2U, 0xa14e69e2U, + 0xcd65daf4U, 0xd50605beU, 0x1fd13462U, 0x8ac4a6feU, + 0x9d342e53U, 0xa0a2f355U, 0x32058ae1U, 0x75a4f6ebU, + 0x390b83ecU, 0xaa4060efU, 0x065e719fU, 0x51bd6e10U, + 0xf93e218aU, 0x3d96dd06U, 0xaedd3e05U, 0x464de6bdU, + 0xb591548dU, 0x0571c45dU, 0x6f0406d4U, 0xff605015U, + 0x241998fbU, 0x97d6bde9U, 0xcc894043U, 0x7767d99eU, + 0xbdb0e842U, 0x8807898bU, 0x38e7195bU, 0xdb79c8eeU, + 0x47a17c0aU, 0xe97c420fU, 0xc9f8841eU, 0x00000000U, + 0x83098086U, 0x48322bedU, 0xac1e1170U, 0x4e6c5a72U, + 0xfbfd0effU, 0x560f8538U, 0x1e3daed5U, 0x27362d39U, + 0x640a0fd9U, 0x21685ca6U, 0xd19b5b54U, 0x3a24362eU, + 0xb10c0a67U, 0x0f9357e7U, 0xd2b4ee96U, 0x9e1b9b91U, + 0x4f80c0c5U, 0xa261dc20U, 0x695a774bU, 0x161c121aU, + 0x0ae293baU, 0xe5c0a02aU, 0x433c22e0U, 0x1d121b17U, + 0x0b0e090dU, 0xadf28bc7U, 0xb92db6a8U, 0xc8141ea9U, + 0x8557f119U, 0x4caf7507U, 0xbbee99ddU, 0xfda37f60U, + 0x9ff70126U, 0xbc5c72f5U, 0xc544663bU, 0x345bfb7eU, + 0x768b4329U, 0xdccb23c6U, 0x68b6edfcU, 0x63b8e4f1U, + 0xcad731dcU, 0x10426385U, 0x40139722U, 0x2084c611U, + 0x7d854a24U, 0xf8d2bb3dU, 0x11aef932U, 0x6dc729a1U, + 0x4b1d9e2fU, 0xf3dcb230U, 0xec0d8652U, 0xd077c1e3U, + 0x6c2bb316U, 0x99a970b9U, 0xfa119448U, 0x2247e964U, + 0xc4a8fc8cU, 0x1aa0f03fU, 0xd8567d2cU, 0xef223390U, + 0xc787494eU, 0xc1d938d1U, 0xfe8ccaa2U, 0x3698d40bU, + 0xcfa6f581U, 0x28a57adeU, 0x26dab78eU, 0xa43fadbfU, + 0xe42c3a9dU, 0x0d507892U, 0x9b6a5fccU, 0x62547e46U, + 0xc2f68d13U, 0xe890d8b8U, 0x5e2e39f7U, 0xf582c3afU, + 0xbe9f5d80U, 0x7c69d093U, 0xa96fd52dU, 0xb3cf2512U, + 0x3bc8ac99U, 0xa710187dU, 0x6ee89c63U, 0x7bdb3bbbU, + 0x09cd2678U, 0xf46e5918U, 0x01ec9ab7U, 0xa8834f9aU, + 0x65e6956eU, 0x7eaaffe6U, 0x0821bccfU, 0xe6ef15e8U, + 0xd9bae79bU, 0xce4a6f36U, 0xd4ea9f09U, 0xd629b07cU, + 0xaf31a4b2U, 0x312a3f23U, 0x30c6a594U, 0xc035a266U, + 0x37744ebcU, 0xa6fc82caU, 0xb0e090d0U, 0x1533a7d8U, + 0x4af10498U, 0xf741ecdaU, 0x0e7fcd50U, 0x2f1791f6U, + 0x8d764dd6U, 0x4d43efb0U, 0x54ccaa4dU, 0xdfe49604U, + 0xe39ed1b5U, 0x1b4c6a88U, 0xb8c12c1fU, 0x7f466551U, + 0x049d5eeaU, 0x5d018c35U, 0x73fa8774U, 0x2efb0b41U, + 0x5ab3671dU, 0x5292dbd2U, 0x33e91056U, 0x136dd647U, + 0x8c9ad761U, 0x7a37a10cU, 0x8e59f814U, 0x89eb133cU, + 0xeecea927U, 0x35b761c9U, 0xede11ce5U, 0x3c7a47b1U, + 0x599cd2dfU, 0x3f55f273U, 0x791814ceU, 0xbf73c737U, + 0xea53f7cdU, 0x5b5ffdaaU, 0x14df3d6fU, 0x867844dbU, + 0x81caaff3U, 0x3eb968c4U, 0x2c382434U, 0x5fc2a340U, + 0x72161dc3U, 0x0cbce225U, 0x8b283c49U, 0x41ff0d95U, + 0x7139a801U, 0xde080cb3U, 0x9cd8b4e4U, 0x906456c1U, + 0x617bcb84U, 0x70d532b6U, 0x74486c5cU, 0x42d0b857U, +}; +static const u32 Td2[256] = { + 0xa75051f4U, 0x65537e41U, 0xa4c31a17U, 0x5e963a27U, + 0x6bcb3babU, 0x45f11f9dU, 0x58abacfaU, 0x03934be3U, + 0xfa552030U, 0x6df6ad76U, 0x769188ccU, 0x4c25f502U, + 0xd7fc4fe5U, 0xcbd7c52aU, 0x44802635U, 0xa38fb562U, + 0x5a49deb1U, 0x1b6725baU, 0x0e9845eaU, 0xc0e15dfeU, + 0x7502c32fU, 0xf012814cU, 0x97a38d46U, 0xf9c66bd3U, + 0x5fe7038fU, 0x9c951592U, 0x7aebbf6dU, 0x59da9552U, + 0x832dd4beU, 0x21d35874U, 0x692949e0U, 0xc8448ec9U, + 0x896a75c2U, 0x7978f48eU, 0x3e6b9958U, 0x71dd27b9U, + 0x4fb6bee1U, 0xad17f088U, 0xac66c920U, 0x3ab47dceU, + 0x4a1863dfU, 0x3182e51aU, 0x33609751U, 0x7f456253U, + 0x77e0b164U, 0xae84bb6bU, 0xa01cfe81U, 0x2b94f908U, + 0x68587048U, 0xfd198f45U, 0x6c8794deU, 0xf8b7527bU, + 0xd323ab73U, 0x02e2724bU, 0x8f57e31fU, 0xab2a6655U, + 0x2807b2ebU, 0xc2032fb5U, 0x7b9a86c5U, 0x08a5d337U, + 0x87f23028U, 0xa5b223bfU, 0x6aba0203U, 0x825ced16U, + 0x1c2b8acfU, 0xb492a779U, 0xf2f0f307U, 0xe2a14e69U, + 0xf4cd65daU, 0xbed50605U, 0x621fd134U, 0xfe8ac4a6U, + 0x539d342eU, 0x55a0a2f3U, 0xe132058aU, 0xeb75a4f6U, + 0xec390b83U, 0xefaa4060U, 0x9f065e71U, 0x1051bd6eU, + 0x8af93e21U, 0x063d96ddU, 0x05aedd3eU, 0xbd464de6U, + 0x8db59154U, 0x5d0571c4U, 0xd46f0406U, 0x15ff6050U, + 0xfb241998U, 0xe997d6bdU, 0x43cc8940U, 0x9e7767d9U, + 0x42bdb0e8U, 0x8b880789U, 0x5b38e719U, 0xeedb79c8U, + 0x0a47a17cU, 0x0fe97c42U, 0x1ec9f884U, 0x00000000U, + 0x86830980U, 0xed48322bU, 0x70ac1e11U, 0x724e6c5aU, + 0xfffbfd0eU, 0x38560f85U, 0xd51e3daeU, 0x3927362dU, + 0xd9640a0fU, 0xa621685cU, 0x54d19b5bU, 0x2e3a2436U, + 0x67b10c0aU, 0xe70f9357U, 0x96d2b4eeU, 0x919e1b9bU, + 0xc54f80c0U, 0x20a261dcU, 0x4b695a77U, 0x1a161c12U, + 0xba0ae293U, 0x2ae5c0a0U, 0xe0433c22U, 0x171d121bU, + 0x0d0b0e09U, 0xc7adf28bU, 0xa8b92db6U, 0xa9c8141eU, + 0x198557f1U, 0x074caf75U, 0xddbbee99U, 0x60fda37fU, + 0x269ff701U, 0xf5bc5c72U, 0x3bc54466U, 0x7e345bfbU, + 0x29768b43U, 0xc6dccb23U, 0xfc68b6edU, 0xf163b8e4U, + 0xdccad731U, 0x85104263U, 0x22401397U, 0x112084c6U, + 0x247d854aU, 0x3df8d2bbU, 0x3211aef9U, 0xa16dc729U, + 0x2f4b1d9eU, 0x30f3dcb2U, 0x52ec0d86U, 0xe3d077c1U, + 0x166c2bb3U, 0xb999a970U, 0x48fa1194U, 0x642247e9U, + 0x8cc4a8fcU, 0x3f1aa0f0U, 0x2cd8567dU, 0x90ef2233U, + 0x4ec78749U, 0xd1c1d938U, 0xa2fe8ccaU, 0x0b3698d4U, + 0x81cfa6f5U, 0xde28a57aU, 0x8e26dab7U, 0xbfa43fadU, + 0x9de42c3aU, 0x920d5078U, 0xcc9b6a5fU, 0x4662547eU, + 0x13c2f68dU, 0xb8e890d8U, 0xf75e2e39U, 0xaff582c3U, + 0x80be9f5dU, 0x937c69d0U, 0x2da96fd5U, 0x12b3cf25U, + 0x993bc8acU, 0x7da71018U, 0x636ee89cU, 0xbb7bdb3bU, + 0x7809cd26U, 0x18f46e59U, 0xb701ec9aU, 0x9aa8834fU, + 0x6e65e695U, 0xe67eaaffU, 0xcf0821bcU, 0xe8e6ef15U, + 0x9bd9bae7U, 0x36ce4a6fU, 0x09d4ea9fU, 0x7cd629b0U, + 0xb2af31a4U, 0x23312a3fU, 0x9430c6a5U, 0x66c035a2U, + 0xbc37744eU, 0xcaa6fc82U, 0xd0b0e090U, 0xd81533a7U, + 0x984af104U, 0xdaf741ecU, 0x500e7fcdU, 0xf62f1791U, + 0xd68d764dU, 0xb04d43efU, 0x4d54ccaaU, 0x04dfe496U, + 0xb5e39ed1U, 0x881b4c6aU, 0x1fb8c12cU, 0x517f4665U, + 0xea049d5eU, 0x355d018cU, 0x7473fa87U, 0x412efb0bU, + 0x1d5ab367U, 0xd25292dbU, 0x5633e910U, 0x47136dd6U, + 0x618c9ad7U, 0x0c7a37a1U, 0x148e59f8U, 0x3c89eb13U, + 0x27eecea9U, 0xc935b761U, 0xe5ede11cU, 0xb13c7a47U, + 0xdf599cd2U, 0x733f55f2U, 0xce791814U, 0x37bf73c7U, + 0xcdea53f7U, 0xaa5b5ffdU, 0x6f14df3dU, 0xdb867844U, + 0xf381caafU, 0xc43eb968U, 0x342c3824U, 0x405fc2a3U, + 0xc372161dU, 0x250cbce2U, 0x498b283cU, 0x9541ff0dU, + 0x017139a8U, 0xb3de080cU, 0xe49cd8b4U, 0xc1906456U, + 0x84617bcbU, 0xb670d532U, 0x5c74486cU, 0x5742d0b8U, +}; +static const u32 Td3[256] = { + 0xf4a75051U, 0x4165537eU, 0x17a4c31aU, 0x275e963aU, + 0xab6bcb3bU, 0x9d45f11fU, 0xfa58abacU, 0xe303934bU, + 0x30fa5520U, 0x766df6adU, 0xcc769188U, 0x024c25f5U, + 0xe5d7fc4fU, 0x2acbd7c5U, 0x35448026U, 0x62a38fb5U, + 0xb15a49deU, 0xba1b6725U, 0xea0e9845U, 0xfec0e15dU, + 0x2f7502c3U, 0x4cf01281U, 0x4697a38dU, 0xd3f9c66bU, + 0x8f5fe703U, 0x929c9515U, 0x6d7aebbfU, 0x5259da95U, + 0xbe832dd4U, 0x7421d358U, 0xe0692949U, 0xc9c8448eU, + 0xc2896a75U, 0x8e7978f4U, 0x583e6b99U, 0xb971dd27U, + 0xe14fb6beU, 0x88ad17f0U, 0x20ac66c9U, 0xce3ab47dU, + 0xdf4a1863U, 0x1a3182e5U, 0x51336097U, 0x537f4562U, + 0x6477e0b1U, 0x6bae84bbU, 0x81a01cfeU, 0x082b94f9U, + 0x48685870U, 0x45fd198fU, 0xde6c8794U, 0x7bf8b752U, + 0x73d323abU, 0x4b02e272U, 0x1f8f57e3U, 0x55ab2a66U, + 0xeb2807b2U, 0xb5c2032fU, 0xc57b9a86U, 0x3708a5d3U, + 0x2887f230U, 0xbfa5b223U, 0x036aba02U, 0x16825cedU, + 0xcf1c2b8aU, 0x79b492a7U, 0x07f2f0f3U, 0x69e2a14eU, + 0xdaf4cd65U, 0x05bed506U, 0x34621fd1U, 0xa6fe8ac4U, + 0x2e539d34U, 0xf355a0a2U, 0x8ae13205U, 0xf6eb75a4U, + 0x83ec390bU, 0x60efaa40U, 0x719f065eU, 0x6e1051bdU, + 0x218af93eU, 0xdd063d96U, 0x3e05aeddU, 0xe6bd464dU, + 0x548db591U, 0xc45d0571U, 0x06d46f04U, 0x5015ff60U, + 0x98fb2419U, 0xbde997d6U, 0x4043cc89U, 0xd99e7767U, + 0xe842bdb0U, 0x898b8807U, 0x195b38e7U, 0xc8eedb79U, + 0x7c0a47a1U, 0x420fe97cU, 0x841ec9f8U, 0x00000000U, + 0x80868309U, 0x2bed4832U, 0x1170ac1eU, 0x5a724e6cU, + 0x0efffbfdU, 0x8538560fU, 0xaed51e3dU, 0x2d392736U, + 0x0fd9640aU, 0x5ca62168U, 0x5b54d19bU, 0x362e3a24U, + 0x0a67b10cU, 0x57e70f93U, 0xee96d2b4U, 0x9b919e1bU, + 0xc0c54f80U, 0xdc20a261U, 0x774b695aU, 0x121a161cU, + 0x93ba0ae2U, 0xa02ae5c0U, 0x22e0433cU, 0x1b171d12U, + 0x090d0b0eU, 0x8bc7adf2U, 0xb6a8b92dU, 0x1ea9c814U, + 0xf1198557U, 0x75074cafU, 0x99ddbbeeU, 0x7f60fda3U, + 0x01269ff7U, 0x72f5bc5cU, 0x663bc544U, 0xfb7e345bU, + 0x4329768bU, 0x23c6dccbU, 0xedfc68b6U, 0xe4f163b8U, + 0x31dccad7U, 0x63851042U, 0x97224013U, 0xc6112084U, + 0x4a247d85U, 0xbb3df8d2U, 0xf93211aeU, 0x29a16dc7U, + 0x9e2f4b1dU, 0xb230f3dcU, 0x8652ec0dU, 0xc1e3d077U, + 0xb3166c2bU, 0x70b999a9U, 0x9448fa11U, 0xe9642247U, + 0xfc8cc4a8U, 0xf03f1aa0U, 0x7d2cd856U, 0x3390ef22U, + 0x494ec787U, 0x38d1c1d9U, 0xcaa2fe8cU, 0xd40b3698U, + 0xf581cfa6U, 0x7ade28a5U, 0xb78e26daU, 0xadbfa43fU, + 0x3a9de42cU, 0x78920d50U, 0x5fcc9b6aU, 0x7e466254U, + 0x8d13c2f6U, 0xd8b8e890U, 0x39f75e2eU, 0xc3aff582U, + 0x5d80be9fU, 0xd0937c69U, 0xd52da96fU, 0x2512b3cfU, + 0xac993bc8U, 0x187da710U, 0x9c636ee8U, 0x3bbb7bdbU, + 0x267809cdU, 0x5918f46eU, 0x9ab701ecU, 0x4f9aa883U, + 0x956e65e6U, 0xffe67eaaU, 0xbccf0821U, 0x15e8e6efU, + 0xe79bd9baU, 0x6f36ce4aU, 0x9f09d4eaU, 0xb07cd629U, + 0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U, + 0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U, + 0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U, + 0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U, + 0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U, + 0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU, + 0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU, + 0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU, + 0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU, + 0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U, + 0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U, + 0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U, + 0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU, + 0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U, + 0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U, +}; +static const u8 Td4[256] = { + 0x52U, 0x09U, 0x6aU, 0xd5U, 0x30U, 0x36U, 0xa5U, 0x38U, + 0xbfU, 0x40U, 0xa3U, 0x9eU, 0x81U, 0xf3U, 0xd7U, 0xfbU, + 0x7cU, 0xe3U, 0x39U, 0x82U, 0x9bU, 0x2fU, 0xffU, 0x87U, + 0x34U, 0x8eU, 0x43U, 0x44U, 0xc4U, 0xdeU, 0xe9U, 0xcbU, + 0x54U, 0x7bU, 0x94U, 0x32U, 0xa6U, 0xc2U, 0x23U, 0x3dU, + 0xeeU, 0x4cU, 0x95U, 0x0bU, 0x42U, 0xfaU, 0xc3U, 0x4eU, + 0x08U, 0x2eU, 0xa1U, 0x66U, 0x28U, 0xd9U, 0x24U, 0xb2U, + 0x76U, 0x5bU, 0xa2U, 0x49U, 0x6dU, 0x8bU, 0xd1U, 0x25U, + 0x72U, 0xf8U, 0xf6U, 0x64U, 0x86U, 0x68U, 0x98U, 0x16U, + 0xd4U, 0xa4U, 0x5cU, 0xccU, 0x5dU, 0x65U, 0xb6U, 0x92U, + 0x6cU, 0x70U, 0x48U, 0x50U, 0xfdU, 0xedU, 0xb9U, 0xdaU, + 0x5eU, 0x15U, 0x46U, 0x57U, 0xa7U, 0x8dU, 0x9dU, 0x84U, + 0x90U, 0xd8U, 0xabU, 0x00U, 0x8cU, 0xbcU, 0xd3U, 0x0aU, + 0xf7U, 0xe4U, 0x58U, 0x05U, 0xb8U, 0xb3U, 0x45U, 0x06U, + 0xd0U, 0x2cU, 0x1eU, 0x8fU, 0xcaU, 0x3fU, 0x0fU, 0x02U, + 0xc1U, 0xafU, 0xbdU, 0x03U, 0x01U, 0x13U, 0x8aU, 0x6bU, + 0x3aU, 0x91U, 0x11U, 0x41U, 0x4fU, 0x67U, 0xdcU, 0xeaU, + 0x97U, 0xf2U, 0xcfU, 0xceU, 0xf0U, 0xb4U, 0xe6U, 0x73U, + 0x96U, 0xacU, 0x74U, 0x22U, 0xe7U, 0xadU, 0x35U, 0x85U, + 0xe2U, 0xf9U, 0x37U, 0xe8U, 0x1cU, 0x75U, 0xdfU, 0x6eU, + 0x47U, 0xf1U, 0x1aU, 0x71U, 0x1dU, 0x29U, 0xc5U, 0x89U, + 0x6fU, 0xb7U, 0x62U, 0x0eU, 0xaaU, 0x18U, 0xbeU, 0x1bU, + 0xfcU, 0x56U, 0x3eU, 0x4bU, 0xc6U, 0xd2U, 0x79U, 0x20U, + 0x9aU, 0xdbU, 0xc0U, 0xfeU, 0x78U, 0xcdU, 0x5aU, 0xf4U, + 0x1fU, 0xddU, 0xa8U, 0x33U, 0x88U, 0x07U, 0xc7U, 0x31U, + 0xb1U, 0x12U, 0x10U, 0x59U, 0x27U, 0x80U, 0xecU, 0x5fU, + 0x60U, 0x51U, 0x7fU, 0xa9U, 0x19U, 0xb5U, 0x4aU, 0x0dU, + 0x2dU, 0xe5U, 0x7aU, 0x9fU, 0x93U, 0xc9U, 0x9cU, 0xefU, + 0xa0U, 0xe0U, 0x3bU, 0x4dU, 0xaeU, 0x2aU, 0xf5U, 0xb0U, + 0xc8U, 0xebU, 0xbbU, 0x3cU, 0x83U, 0x53U, 0x99U, 0x61U, + 0x17U, 0x2bU, 0x04U, 0x7eU, 0xbaU, 0x77U, 0xd6U, 0x26U, + 0xe1U, 0x69U, 0x14U, 0x63U, 0x55U, 0x21U, 0x0cU, 0x7dU, +}; +static const u32 rcon[] = { + 0x01000000, 0x02000000, 0x04000000, 0x08000000, + 0x10000000, 0x20000000, 0x40000000, 0x80000000, + 0x1B000000, 0x36000000, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */ +}; + +/** + * Expand the cipher key into the encryption key schedule. + */ +int AES_set_encrypt_key(const u8 *userKey, const int bits, AES_KEY *key) { + u32 *rk; + int i = 0; + u32 temp; + + if (!userKey || !key) + return -1; + if (bits != 128 && bits != 192 && bits != 256) + return -2; + + rk = key->rd_key; + + if (bits == 128) + key->rounds = 10; + else if (bits == 192) + key->rounds = 12; + else + key->rounds = 14; + + rk[0] = GETU32(userKey ); + rk[1] = GETU32(userKey + 4); + rk[2] = GETU32(userKey + 8); + rk[3] = GETU32(userKey + 12); + if (bits == 128) { + while (1) { + temp = rk[3]; + rk[4] = rk[0] ^ + (Te2[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te3[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te0[(temp ) & 0xff] & 0x0000ff00) ^ + (Te1[(temp >> 24) ] & 0x000000ff) ^ + rcon[i]; + rk[5] = rk[1] ^ rk[4]; + rk[6] = rk[2] ^ rk[5]; + rk[7] = rk[3] ^ rk[6]; + if (++i == 10) { + return 0; + } + rk += 4; + } + } + rk[4] = GETU32(userKey + 16); + rk[5] = GETU32(userKey + 20); + if (bits == 192) { + while (1) { + temp = rk[ 5]; + rk[ 6] = rk[ 0] ^ + (Te2[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te3[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te0[(temp ) & 0xff] & 0x0000ff00) ^ + (Te1[(temp >> 24) ] & 0x000000ff) ^ + rcon[i]; + rk[ 7] = rk[ 1] ^ rk[ 6]; + rk[ 8] = rk[ 2] ^ rk[ 7]; + rk[ 9] = rk[ 3] ^ rk[ 8]; + if (++i == 8) { + return 0; + } + rk[10] = rk[ 4] ^ rk[ 9]; + rk[11] = rk[ 5] ^ rk[10]; + rk += 6; + } + } + rk[6] = GETU32(userKey + 24); + rk[7] = GETU32(userKey + 28); + if (bits == 256) { + while (1) { + temp = rk[ 7]; + rk[ 8] = rk[ 0] ^ + (Te2[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te3[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te0[(temp ) & 0xff] & 0x0000ff00) ^ + (Te1[(temp >> 24) ] & 0x000000ff) ^ + rcon[i]; + rk[ 9] = rk[ 1] ^ rk[ 8]; + rk[10] = rk[ 2] ^ rk[ 9]; + rk[11] = rk[ 3] ^ rk[10]; + if (++i == 7) { + return 0; + } + temp = rk[11]; + rk[12] = rk[ 4] ^ + (Te2[(temp >> 24) ] & 0xff000000) ^ + (Te3[(temp >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(temp >> 8) & 0xff] & 0x0000ff00) ^ + (Te1[(temp ) & 0xff] & 0x000000ff); + rk[13] = rk[ 5] ^ rk[12]; + rk[14] = rk[ 6] ^ rk[13]; + rk[15] = rk[ 7] ^ rk[14]; + + rk += 8; + } + } + return 0; +} + +/** + * Expand the cipher key into the decryption key schedule. + */ +int AES_set_decrypt_key(const u8 *userKey, const int bits, AES_KEY *key) { + u32 *rk; + int i, j, status; + u32 temp; + + /* first, start with an encryption schedule */ + status = AES_set_encrypt_key(userKey, bits, key); + if (status < 0) + return status; + + rk = key->rd_key; + + /* invert the order of the round keys: */ + for (i = 0, j = 4*(key->rounds); i < j; i += 4, j -= 4) { + temp = rk[i ]; rk[i ] = rk[j ]; rk[j ] = temp; + temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp; + temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp; + temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp; + } + /* apply the inverse MixColumn transform to all round keys but the first and the last: */ + for (i = 1; i < (key->rounds); i++) { + rk += 4; + rk[0] = + Td0[Te1[(rk[0] >> 24) ] & 0xff] ^ + Td1[Te1[(rk[0] >> 16) & 0xff] & 0xff] ^ + Td2[Te1[(rk[0] >> 8) & 0xff] & 0xff] ^ + Td3[Te1[(rk[0] ) & 0xff] & 0xff]; + rk[1] = + Td0[Te1[(rk[1] >> 24) ] & 0xff] ^ + Td1[Te1[(rk[1] >> 16) & 0xff] & 0xff] ^ + Td2[Te1[(rk[1] >> 8) & 0xff] & 0xff] ^ + Td3[Te1[(rk[1] ) & 0xff] & 0xff]; + rk[2] = + Td0[Te1[(rk[2] >> 24) ] & 0xff] ^ + Td1[Te1[(rk[2] >> 16) & 0xff] & 0xff] ^ + Td2[Te1[(rk[2] >> 8) & 0xff] & 0xff] ^ + Td3[Te1[(rk[2] ) & 0xff] & 0xff]; + rk[3] = + Td0[Te1[(rk[3] >> 24) ] & 0xff] ^ + Td1[Te1[(rk[3] >> 16) & 0xff] & 0xff] ^ + Td2[Te1[(rk[3] >> 8) & 0xff] & 0xff] ^ + Td3[Te1[(rk[3] ) & 0xff] & 0xff]; + } + return 0; +} + +/* + * Encrypt a single block + * in and out can overlap + */ +void AES_encrypt(const u8 *in, u8 *out, const AES_KEY *key) { + + const u32 *rk; + u32 s0, s1, s2, s3, t0, t1, t2, t3; + int r; + assert(in && out && key); + rk = key->rd_key; + + /* + * map byte array block to cipher state + * and add initial round key: + */ + s0 = GETU32(in ) ^ rk[0]; + s1 = GETU32(in + 4) ^ rk[1]; + s2 = GETU32(in + 8) ^ rk[2]; + s3 = GETU32(in + 12) ^ rk[3]; + + /* round 1: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[ 4]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[ 5]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[ 6]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[ 7]; + /* round 2: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[ 8]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[ 9]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[10]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[11]; + /* round 3: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[12]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[13]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[14]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[15]; + /* round 4: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[16]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[17]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[18]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[19]; + /* round 5: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[20]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[21]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[22]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[23]; + /* round 6: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[24]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[25]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[26]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[27]; + /* round 7: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[28]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[29]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[30]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[31]; + /* round 8: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[32]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[33]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[34]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[35]; + /* round 9: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[36]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[37]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[38]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[39]; + if (key->rounds > 10) { + /* round 10: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[40]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[41]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[42]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[43]; + /* round 11: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[44]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[45]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[46]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[47]; + if (key->rounds > 12) { + /* round 12: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[48]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[49]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[50]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[51]; + /* round 13: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[52]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[53]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[54]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[55]; + } + } + rk += key->rounds << 2; + + /* + * apply last round and + * map cipher state to byte array block: + */ + s0 = + (Te2[(t0 >> 24) ] & 0xff000000) ^ + (Te3[(t1 >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(t2 >> 8) & 0xff] & 0x0000ff00) ^ + (Te1[(t3 ) & 0xff] & 0x000000ff) ^ + rk[0]; + PUTU32(out , s0); + s1 = + (Te2[(t1 >> 24) ] & 0xff000000) ^ + (Te3[(t2 >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(t3 >> 8) & 0xff] & 0x0000ff00) ^ + (Te1[(t0 ) & 0xff] & 0x000000ff) ^ + rk[1]; + PUTU32(out + 4, s1); + s2 = + (Te2[(t2 >> 24) ] & 0xff000000) ^ + (Te3[(t3 >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(t0 >> 8) & 0xff] & 0x0000ff00) ^ + (Te1[(t1 ) & 0xff] & 0x000000ff) ^ + rk[2]; + PUTU32(out + 8, s2); + s3 = + (Te2[(t3 >> 24) ] & 0xff000000) ^ + (Te3[(t0 >> 16) & 0xff] & 0x00ff0000) ^ + (Te0[(t1 >> 8) & 0xff] & 0x0000ff00) ^ + (Te1[(t2 ) & 0xff] & 0x000000ff) ^ + rk[3]; + PUTU32(out + 12, s3); +} + +/* + * Decrypt a single block + * in and out can overlap + */ +void AES_decrypt(const u8 *in, u8 *out, const AES_KEY *key) { + const u32 *rk; + u32 s0, s1, s2, s3, t0, t1, t2, t3; + int r; + + assert(in && out && key); + rk = key->rd_key; + + /* + * map byte array block to cipher state + * and add initial round key: + */ + s0 = GETU32(in ) ^ rk[0]; + s1 = GETU32(in + 4) ^ rk[1]; + s2 = GETU32(in + 8) ^ rk[2]; + s3 = GETU32(in + 12) ^ rk[3]; + + /* round 1: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ Td3[s1 & 0xff] ^ rk[ 4]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ Td3[s2 & 0xff] ^ rk[ 5]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ Td3[s3 & 0xff] ^ rk[ 6]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ Td3[s0 & 0xff] ^ rk[ 7]; + /* round 2: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ Td3[t1 & 0xff] ^ rk[ 8]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ Td3[t2 & 0xff] ^ rk[ 9]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ Td3[t3 & 0xff] ^ rk[10]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ Td3[t0 & 0xff] ^ rk[11]; + /* round 3: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ Td3[s1 & 0xff] ^ rk[12]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ Td3[s2 & 0xff] ^ rk[13]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ Td3[s3 & 0xff] ^ rk[14]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ Td3[s0 & 0xff] ^ rk[15]; + /* round 4: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ Td3[t1 & 0xff] ^ rk[16]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ Td3[t2 & 0xff] ^ rk[17]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ Td3[t3 & 0xff] ^ rk[18]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ Td3[t0 & 0xff] ^ rk[19]; + /* round 5: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ Td3[s1 & 0xff] ^ rk[20]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ Td3[s2 & 0xff] ^ rk[21]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ Td3[s3 & 0xff] ^ rk[22]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ Td3[s0 & 0xff] ^ rk[23]; + /* round 6: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ Td3[t1 & 0xff] ^ rk[24]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ Td3[t2 & 0xff] ^ rk[25]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ Td3[t3 & 0xff] ^ rk[26]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ Td3[t0 & 0xff] ^ rk[27]; + /* round 7: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ Td3[s1 & 0xff] ^ rk[28]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ Td3[s2 & 0xff] ^ rk[29]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ Td3[s3 & 0xff] ^ rk[30]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ Td3[s0 & 0xff] ^ rk[31]; + /* round 8: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ Td3[t1 & 0xff] ^ rk[32]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ Td3[t2 & 0xff] ^ rk[33]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ Td3[t3 & 0xff] ^ rk[34]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ Td3[t0 & 0xff] ^ rk[35]; + /* round 9: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ Td3[s1 & 0xff] ^ rk[36]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ Td3[s2 & 0xff] ^ rk[37]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ Td3[s3 & 0xff] ^ rk[38]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ Td3[s0 & 0xff] ^ rk[39]; + if (key->rounds > 10) { + /* round 10: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ Td3[t1 & 0xff] ^ rk[40]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ Td3[t2 & 0xff] ^ rk[41]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ Td3[t3 & 0xff] ^ rk[42]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ Td3[t0 & 0xff] ^ rk[43]; + /* round 11: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ Td3[s1 & 0xff] ^ rk[44]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ Td3[s2 & 0xff] ^ rk[45]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ Td3[s3 & 0xff] ^ rk[46]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ Td3[s0 & 0xff] ^ rk[47]; + if (key->rounds > 12) { + /* round 12: */ + s0 = Td0[t0 >> 24] ^ Td1[(t3 >> 16) & 0xff] ^ Td2[(t2 >> 8) & 0xff] ^ Td3[t1 & 0xff] ^ rk[48]; + s1 = Td0[t1 >> 24] ^ Td1[(t0 >> 16) & 0xff] ^ Td2[(t3 >> 8) & 0xff] ^ Td3[t2 & 0xff] ^ rk[49]; + s2 = Td0[t2 >> 24] ^ Td1[(t1 >> 16) & 0xff] ^ Td2[(t0 >> 8) & 0xff] ^ Td3[t3 & 0xff] ^ rk[50]; + s3 = Td0[t3 >> 24] ^ Td1[(t2 >> 16) & 0xff] ^ Td2[(t1 >> 8) & 0xff] ^ Td3[t0 & 0xff] ^ rk[51]; + /* round 13: */ + t0 = Td0[s0 >> 24] ^ Td1[(s3 >> 16) & 0xff] ^ Td2[(s2 >> 8) & 0xff] ^ Td3[s1 & 0xff] ^ rk[52]; + t1 = Td0[s1 >> 24] ^ Td1[(s0 >> 16) & 0xff] ^ Td2[(s3 >> 8) & 0xff] ^ Td3[s2 & 0xff] ^ rk[53]; + t2 = Td0[s2 >> 24] ^ Td1[(s1 >> 16) & 0xff] ^ Td2[(s0 >> 8) & 0xff] ^ Td3[s3 & 0xff] ^ rk[54]; + t3 = Td0[s3 >> 24] ^ Td1[(s2 >> 16) & 0xff] ^ Td2[(s1 >> 8) & 0xff] ^ Td3[s0 & 0xff] ^ rk[55]; + } + } + rk += key->rounds << 2; + + /* + * apply last round and + * map cipher state to byte array block: + */ + s0 = + ((u32)Td4[(t0 >> 24) ] << 24) ^ + ((u32)Td4[(t3 >> 16) & 0xff] << 16) ^ + ((u32)Td4[(t2 >> 8) & 0xff] << 8) ^ + ((u32)Td4[(t1 ) & 0xff]) ^ + rk[0]; + PUTU32(out , s0); + s1 = + ((u32)Td4[(t1 >> 24) ] << 24) ^ + ((u32)Td4[(t0 >> 16) & 0xff] << 16) ^ + ((u32)Td4[(t3 >> 8) & 0xff] << 8) ^ + ((u32)Td4[(t2 ) & 0xff]) ^ + rk[1]; + PUTU32(out + 4, s1); + s2 = + ((u32)Td4[(t2 >> 24) ] << 24) ^ + ((u32)Td4[(t1 >> 16) & 0xff] << 16) ^ + ((u32)Td4[(t0 >> 8) & 0xff] << 8) ^ + ((u32)Td4[(t3 ) & 0xff]) ^ + rk[2]; + PUTU32(out + 8, s2); + s3 = + ((u32)Td4[(t3 >> 24) ] << 24) ^ + ((u32)Td4[(t2 >> 16) & 0xff] << 16) ^ + ((u32)Td4[(t1 >> 8) & 0xff] << 8) ^ + ((u32)Td4[(t0 ) & 0xff]) ^ + rk[3]; + PUTU32(out + 12, s3); +} \ No newline at end of file diff --git a/src/common/mem.c b/src/common/mem.c new file mode 100644 index 0000000..86ea468 --- /dev/null +++ b/src/common/mem.c @@ -0,0 +1,14 @@ +#include "config.h" +#include "mem.h" + +int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len) { + size_t i; + const u8 *a = in_a; + const u8 *b = in_b; + u8 x = 0; + + for (i = 0; i < len; i++) + x |= a[i] ^ b[i]; + + return x; +} \ No newline at end of file diff --git a/src/main.c b/src/main.c index 6669bad..bd61bb8 100644 --- a/src/main.c +++ b/src/main.c @@ -1,236 +1,315 @@ -/* File: src/main.c */ -#include "../include/api_cryptomodule.h" - -/* Enable core dumps and set signal handlers for debugging */ -#include +#include +#include #include -#include -#include - -// #define BLOCK_CIPHER_TEST_FLAG 1 -#define MODE_OF_OPERATION_TEST_FLAG 1 -// #define PADDING_TEST_FLAG 1 +#include "config.h" +#include "mode.h" +#include "aes.h" + +/* ------------------------------------------------------------------ + * hex2bin(): convert hex string (even length) to binary bytes. + * Returns 0 on success, -1 on failure (invalid hex or overflow). + * ------------------------------------------------------------------ */ +static int hex2bin(const char *hex, unsigned char *out, size_t outlen) { + size_t i; + unsigned int byte; + if (strlen(hex) != outlen*2) return -1; + for (i = 0; i < outlen; i++) { + if (sscanf(hex + 2*i, "%2x", &byte) != 1) return -1; + out[i] = (unsigned char)byte; + } + return 0; +} int main(void) { - - // KAT_TEST_BLOCKCIPHER(BLOCK_CIPHER_AES128); - // KAT_TEST_BLOCKCIPHER(BLOCK_CIPHER_AES192); - // KAT_TEST_BLOCKCIPHER(BLOCK_CIPHER_AES256); - -#ifdef MODE_OF_OPERATION_TEST_FLAG - // 1) Prepare key and IV - uint8_t key[16] = { - 0x00,0x01,0x02,0x03, 0x04,0x05,0x06,0x07, - 0x08,0x09,0x0A,0x0B, 0x0C,0x0D,0x0E,0x0F + /* Example 128-bit key, IV and plaintext from NIST SP800-38A §6.5 */ + const u8 key_bytes[16] = { + 0x2b,0x7e,0x15,0x16, 0x28,0xae,0xd2,0xa6, + 0xab,0xf7,0x15,0x88, 0x09,0xcf,0x4f,0x3c }; - uint8_t iv[16] = { 0 }; // for CBC/CTR/GCM - - printf(" Key (%u): ", 16); - for (size_t i = 0; i < sizeof(key)/sizeof(u8); i++) { - printf("(%ld)%02X:", i, key[i]); - } puts(""); - - // 2) Example plaintext > 1 block (48 bytes = 3 AES blocks) - // const char *plaintext = - // "The quick brown fox jumps over the lazy dog!!!"; - // size_t pt_len = strlen(plaintext); // 43 bytes - - size_t pt_len = 16; - size_t pt_max_len = 32; - - u8 *mode_pt = (u8*)malloc(pt_max_len); - if (!mode_pt) { - fprintf(stderr, "Memory allocation failed\n"); - return -1; - } - for (size_t i = 0; i < pt_len; i++) { - mode_pt[i] = (uint8_t)i*i; + const u8 iv_bytes[16] = { + 0xf0,0xf1,0xf2,0xf3, 0xf4,0xf5,0xf6,0xf7, + 0xf8,0xf9,0xfa,0xfb, 0xfc,0xfd,0xfe,0xff + }; + const u8 pt[64] = { + /* 4×16-byte blocks of known plaintext… */ + }; + /* expected CT from the spec… */ + const u8 ct_expected[64] = { /* … */ }; + + AES_KEY aes_key; + u8 ct1[64], ct2[64], ct3[64], ct4[64]; + u8 ivec[16], ecount[16]; + unsigned int num; + + /* 1) set AES key schedule */ + if (AES_set_encrypt_key(key_bytes, 128, &aes_key) < 0) { + fprintf(stderr, "AES_set_encrypt_key failed\n"); + return 1; } - printf("[Fit-] Original message (%2zu): ", pt_len); - for (size_t i = 0; i < pt_len; i++) { - printf("(%ld)%02X:", i, mode_pt[i]); - } puts(""); - - printf("[Real] Original message (%2zu): ", pt_max_len); - for (size_t i = 0; i < pt_max_len; i++) { - printf("(%ld)%02X:", i, mode_pt[i]); - } puts(""); - - // For ECB/CBC with padding, ciphertext_len may grow by +block_size - uint8_t mode_ct[64] = {0}; - size_t mode_ct_len = pt_max_len; + /* ------------------------------------------------------------ */ + /* A) Test CRYPTO_ctr128_encrypt (uses aes_block) */ + /* ------------------------------------------------------------ */ + memcpy(ivec, iv_bytes, 16); + memset(ecount, 0, 16); + num = 0; - // 3) Set up BlockCipherContext for AES + // CRYPTO_ctr128_encrypt(pt, ct1, sizeof(pt), + // &aes_key, ivec, ecount, &num, + // aes_block); - - // 4) Choose a mode: ECB or CBC (both defined in mode_api.h) - ModeOfOperationContext mode_ctx; - // BlockCipherContext cipher_ctx; - mode_ctx.mode_api = mode_factory("ECB"); - - mode_ctx.mode_api->mode_init( - &mode_ctx, BLOCK_CIPHER_AES128, key, sizeof(key)/sizeof(u8), NULL, 0, mode_pt, pt_len, BLOCK_CIPHER_ENCRYPTION); - // printf("Total length: %zu\n", mode_ctx.total_len); - - // size_t total_block_size = pkcs7_pad(pt, msg_len, BLOCK_SIZE); - - // printf(" Key: "); - // for (size_t i = 0; i < sizeof(key)/sizeof(u8); i++) { - // printf("%02X ", key[i]); + // if (memcmp(ct1, ct_expected, sizeof(pt)) != 0) { + // fprintf(stderr, "CTR128_encrypt: ciphertext mismatch\n"); + // return 1; // } - // puts(""); - // printf(" IV: "); - // for (size_t i = 0; i < sizeof(iv)/sizeof(u8); i++) { - // printf("%02X ", iv[i]); - // } - // puts(""); - printf(" Padded Plaintext: (%2zu): ", mode_ctx.total_len); - for (size_t i = 0; i < mode_ctx.total_len; i++) { - printf("(%ld)%02X:", i, mode_pt[i]); - } puts(""); - - mode_ctx.mode_api->mode_update( - &mode_ctx, mode_pt, mode_ct, mode_ctx.total_len, BLOCK_CIPHER_ENCRYPTION); - - printf(" (Update) Ciphertext: (%2zu): ", mode_ctx.total_len); - for (size_t i = 0; i < mode_ctx.total_len; i++) { - printf("(%ld)%02X:", i, mode_ct[i]); - } puts(""); - - - // mode_ctx.api->mode_update(&mode_ctx, pt, ciphertext, pt_max_len, ciphertext_len, BLOCK_CIPHER_ENCRYPTION); - // mode_ctx.api->mode_dispose(&mode_ctx); - // cipher_ctx.cipher_api->cipher_dispose(&cipher_ctx); - // printf(" Ciphertext: (%2zu): ", ciphertext_len); - // for (size_t i = 0; i < ciphertext_len; i++) { - // printf("%02X ", ciphertext[i]); - // } - // puts(""); - - free(mode_pt); - -#endif -#ifdef PADDING_TEST_FLAG - uint8_t buf[128]; - const char *msg = "HELLO WORLD"; - size_t msg_len = strlen(msg); - memcpy(buf, msg, msg_len); + // /* round-trip (CTR is its own inverse) */ + // memcpy(ivec, iv_bytes, 16); + // memset(ecount, 0, 16); + // num = 0; + // CRYPTO_ctr128_encrypt(ct1, ct3, sizeof(pt), + // &aes_key, ivec, ecount, &num, + // aes_block); + + // if (memcmp(ct3, pt, sizeof(pt)) != 0) { + // fprintf(stderr, "CTR128_encrypt roundtrip failed\n"); + // return 1; + // } - // size_t msg_len = 16; - // for (size_t i = 0; i < msg_len; i++) { - // buf[i] = (uint8_t)i; + // /* ------------------------------------------------------------ */ + // /* B) Test CRYPTO_ctr128_encrypt_ctr32 (uses aes_ctr32) */ + // /* ------------------------------------------------------------ */ + // memcpy(ivec, iv_bytes, 16); + // memset(ecount, 0, 16); + // num = 0; + + // CRYPTO_ctr128_encrypt_ctr32(pt, ct2, sizeof(pt), + // &aes_key, ivec, ecount, &num, + // aes_ctr32); + + // /* it should match exactly the same output as (A) */ + // if (memcmp(ct2, ct1, sizeof(pt)) != 0) { + // fprintf(stderr, "CTR32_encrypt: ciphertext mismatch\n"); + // return 1; // } - printf("Original message (%zu): ", msg_len); - for (size_t i = 0; i < msg_len; i++) { - printf("(%ld)%02X:", i, buf[i]); - } puts(""); - - // PKCS#7 - printf("\n----------------------------------- PKCS#7 -----------------------------------\n"); - size_t tot = pkcs7_pad(buf, msg_len, BLOCK_SIZE); - printf("Padded message (%zu): ", tot); - for (size_t i = 0; i < tot; i++) { - printf("(%ld)%02X:", i, buf[i]); - } puts(""); - size_t unp = pkcs7_unpad(buf, tot, BLOCK_SIZE); - printf("Unpadded message (%zu): ", unp); - for (size_t i = 0; i < unp; i++) { - printf("(%ld)%02X:", i, buf[i]); - } puts(""); - - // ANSI 9.23 - printf("\n----------------------------------- ANSI 9.23 -----------------------------------\n"); - // memcpy(buf, msg, msg_len); - tot = ansi923_pad(buf, msg_len, BLOCK_SIZE); - printf("Padded message (%zu): ", tot); - for (size_t i = 0; i < tot; i++) { - printf("(%ld)%02X:", i, buf[i]); - } puts(""); - unp = ansi923_unpad(buf, tot, BLOCK_SIZE); - printf("Unpadded message (%zu): ", unp); - for (size_t i = 0; i < unp; i++) { - printf("(%ld)%02X:", i, buf[i]); - } puts(""); - - // ISO/IEC 7816-4 - printf("\n----------------------------------- ISO/IEC 7816-4 -----------------------------------\n"); - // memcpy(buf, msg, msg_len); - tot = iso7816_4_pad(buf, msg_len, BLOCK_SIZE); - printf("Padded message (%zu): ", tot); - for (size_t i = 0; i < tot; i++) { - printf("(%ld)%02X:", i, buf[i]); - } puts(""); - unp = iso7816_4_unpad(buf, tot, BLOCK_SIZE); - printf("Unpadded message (%zu): ", unp); - for (size_t i = 0; i < unp; i++) { - printf("(%ld)%02X:", i, buf[i]); - } puts(""); -#endif - -#ifdef BLOCK_CIPHER_TEST_FLAG - /* 1) Create a context and call init */ - BlockCipherContext cipher_ctx; - memset(&cipher_ctx, 0, sizeof(cipher_ctx)); - - #define key_len AES128_KEY_SIZE - - /* 2) Get the AES vtable. */ - // u8 key[key_len] = {0}; /* example all zero */ - // stringToByteArray("f8000000000000000000000000000000", key); - printf("Key : "); - for (int i = 0; i < key_len; i++) { - printf("%02X ", key[i]); - } - printf("\n"); + // /* round-trip via ctr32 */ + // memcpy(ivec, iv_bytes, 16); + // memset(ecount, 0, 16); + // num = 0; + // CRYPTO_ctr128_encrypt_ctr32(ct2, ct4, sizeof(pt), + // &aes_key, ivec, ecount, &num, + // aes_ctr32); + + // if (memcmp(ct4, pt, sizeof(pt)) != 0) { + // fprintf(stderr, "CTR32_encrypt roundtrip failed\n"); + // return 1; + // } - /* 3) Encrypt or Decrypt a single 16-byte block. */ - u8 pt[16] = { 0x00, }; - // stringToByteArray("00000000000000000000000000000000", pt); - for (size_t i = 0; i < sizeof(pt)/sizeof(u8); i++) { - pt[i] = (u8)i*i; - } - u8 ct[16] = { 0x00, }; - u8 dt[16] = { 0x00, }; - - memset(&cipher_ctx, 0, sizeof(cipher_ctx)); - cipher_ctx.cipher_api = block_cipher_factory("AES"); - cipher_ctx.cipher_api->cipher_init(&cipher_ctx, key, key_len, AES_BLOCK_SIZE, BLOCK_CIPHER_ENCRYPTION); - cipher_ctx.cipher_api->cipher_process(&cipher_ctx, pt, ct, BLOCK_CIPHER_ENCRYPTION); - // ctx.api->dispose(&ctx); - cipher_ctx.cipher_api->cipher_init(&cipher_ctx, key, key_len, AES_BLOCK_SIZE, BLOCK_CIPHER_DECRYPTION); - cipher_ctx.cipher_api->cipher_process(&cipher_ctx, ct, dt, BLOCK_CIPHER_DECRYPTION); - cipher_ctx.cipher_api->cipher_dispose(&cipher_ctx); - - // -- ENCRYPTION -- - // memset(&enc_ctx, 0, sizeof(enc_ctx)); - // enc_ctx.api = block_cipher_factory("AES"); - // enc_ctx.api->init(&enc_ctx, key, AES128_KEY_SIZE, AES_BLOCK_SIZE, BLOCK_CIPHER_ENCRYPTION); - // enc_ctx.api->process_block(&enc_ctx, plaintext, ciphertext, BLOCK_CIPHER_ENCRYPTION); - // enc_ctx.api->dispose(&enc_ctx); - - // -- DECRYPTION -- - // memset(&dec_ctx, 0, sizeof(dec_ctx)); - // dec_ctx.api = block_cipher_factory("AES"); - // dec_ctx.api->init(&dec_ctx, key, 16, 16, BLOCK_CIPHER_DECRYPTION); - // dec_ctx.api->process_block(&dec_ctx, ciphertext, decrypted, BLOCK_CIPHER_DECRYPTION); - // dec_ctx.api->dispose(&dec_ctx); - - printf("Original : "); - for (int i = 0; i < 16; i++) { - printf("%02X ", pt[i]); - } - printf("\nEncrypted : "); - for (int i = 0; i < 16; i++) { - printf("%02X ", ct[i]); - } - printf("\nDecrypted : "); - for (int i = 0; i < 16; i++) { - printf("%02X ", dt[i]); - } - puts(""); -#endif + // puts("Both CTR128 and CTR32 tests PASS"); return 0; -} \ No newline at end of file +} + +// int main(void) { +// // struct { +// // const char *hexKey, *hexIV, *hexTag; +// // } tests[] = { +// // { "11754cd72aec309bf52f7687212e8957", +// // "3c819d9a9bed087615030b65", +// // "250327c674aaf477aef2675748cf6971" }, +// // { "ca47248ac0b6f8372a97ac43508308ed", +// // "ffd2b598feabc9019262d2be", +// // "60d20404af527d248d893ae495707d1a" }, +// // { "db1ad0bd1cf6db0b5d86efdd8914b218", +// // "36fad6acb3c98e0138aeb9b1", +// // "5ee2ba737d3f2a944b335a81f6653cce" }, +// // { "1c7135af627c04c32957f33f9ac08590", +// // "355c094fa09c8e9281178d34", +// // "b6ab2c7d906c9d9ec4c1498d2cbb5029" }, +// // { "6ca2c11205a6e55ab504dbf3491f8bdc", +// // "b1008b650a2fee642175c60d", +// // "7a9a225d5f9a0ebfe0e69f371871a672" }, +// // { "69f2ca78bb5690acc6587302628828d5", +// // "701da282cb6b6018dabd00d3", +// // "ab1d40dda1798d56687892e2159decfd" }, +// // { "dcf4e339c487b6797aaca931725f7bbd", +// // "2c1d955e35366760ead8817c", +// // "32b542c5f344cceceb460a02938d6b0c" }, +// // { "7658cdbb81572a23a78ee4596f844ee9", +// // "1c3baae9b9065961842cbe52", +// // "70c7123fc819aa060ed2d3c159b6ea41" }, +// // { "281a570b1e8f265ee09303ecae0cc46d", +// // "8c2941f73cf8713ad5bc13df", +// // "a42e5e5f6fb00a9f1206b302edbfd87c" } +// // }; + +// // const size_t TAGLEN = 16, IVLEN = 12, KEYLEN = 16; +// // unsigned char key[KEYLEN], iv[IVLEN], tag[TAGLEN]; +// // int i, ret; + +// // for (i = 0; i < (int)(sizeof(tests)/sizeof(tests[0])); i++) { +// // GCM128_CONTEXT *ctx; +// // AES_KEY aes_key; + +// // /* hex → binary */ +// // if (hex2bin(tests[i].hexKey, key, KEYLEN) || +// // hex2bin(tests[i].hexIV, iv, IVLEN) || +// // hex2bin(tests[i].hexTag, tag, TAGLEN)) { +// // fprintf(stderr, "Bad hex in test %d\n", i); +// // continue; +// // } + +// // /* prepare AES key schedule */ +// // if (AES_set_encrypt_key(key, 128, &aes_key) < 0) { +// // fprintf(stderr, "AES_set_encrypt_key failed\n"); +// // return 1; +// // } + +// // /* 1) alloc + init */ +// // ctx = CRYPTO_gcm128_new(&aes_key, aes_block); +// // if (!ctx) { +// // fprintf(stderr, "GCM new failed\n"); +// // return 1; +// // } +// // CRYPTO_gcm128_init(ctx, &aes_key, aes_block); + +// // /* 2) set IV */ +// // CRYPTO_gcm128_setiv(ctx, iv, IVLEN); + +// // /* 3) no AAD, so skip CRYPTO_gcm128_aad */ + +// // /* 4) no plaintext: still call encrypt with len=0 */ +// // ret = CRYPTO_gcm128_encrypt(ctx, NULL, NULL, 0); +// // if (ret != 0) { +// // fprintf(stderr, "encrypt() error in test %d\n", i); +// // } + +// // /* 5) verify tag: returns 0 on match */ +// // ret = CRYPTO_gcm128_finish(ctx, tag, TAGLEN); +// // printf("Test %d: %s\n", i, +// // ret == 0 ? "PASS" : "FAIL"); + +// // /* 6) clean up */ +// // CRYPTO_gcm128_release(ctx); +// // } + +// /* your eight “Count=0…7” test vectors */ +// struct { +// const char *hexKey, *hexIV, *hexPT, *hexAAD, *hexCT, *hexTag; +// } tests[] = { +// { +// "2633d1781ce54f74ac609a5b5209a01f", +// "7d0e90b7e9f36f760d2dcbd66f352df45f3917afdbe1d0a89cc44be0bd85cf8bf75edbdd33f1d16dad02824d81389210b0f146f3df63f9232d7035eb9e8297a09474985b3e038a5fa6840155d8848fc7c53061ba0f442b84408660a997176ca5bf3473103fd3c9a1de2580b9e539af872259ecae925a8ef50f5a176a069b1fb8", +// "ae695828625b264e0b13d3c9a539f2cf306a7501cdd35b817b699b2d7c25cf20d2dceec3fa883019db807272fddfdca8e7f672", +// "584c3cad3035d1427d6f5f1b261e97a5ea7d97c0b88cedf3b1aa5e21e5916805a63964eab4449d8806e7af60618465cf39f82769b7528bba9bb9c04992cd7b9e26efe9be38e1bfeeb41678c52d5ba3508fd7a2b1e8478505bfde", +// "fbc32a56885100a36c276ff368db9236906021a8cc7500f2b3e78a6ca01546827073ff1103145f139f4d116eb47b84e33c7160", +// "49589b3a" +// }, +// /* … Counts 1…7 go here in the same format … */ +// }; + +// const int NTESTS = sizeof(tests)/sizeof(tests[0]); +// const size_t KEYLEN = 16, +// IVLEN = 128, +// PTLEN = 51, +// AADLEN = 90, +// CTLEN = PTLEN, +// TAGLEN = 4; + +// unsigned char key[KEYLEN], +// iv[IVLEN], +// pt[PTLEN], +// aad[AADLEN], +// ct[CTLEN], +// tag[TAGLEN], +// pt2[PTLEN], +// ct2[CTLEN], +// tag2[TAGLEN]; + +// for (int i = 0; i < NTESTS; i++) { +// AES_KEY aes_key; +// GCM128_CONTEXT *ctx; +// int pass_encrypt = 1, pass_decrypt = 1; + +// /* hex → bin all inputs & expected outputs */ +// if (hex2bin(tests[i].hexKey, key, KEYLEN) || +// hex2bin(tests[i].hexIV, iv, IVLEN) || +// hex2bin(tests[i].hexPT, pt, PTLEN) || +// hex2bin(tests[i].hexAAD, aad, AADLEN) || +// hex2bin(tests[i].hexCT, ct, CTLEN) || +// hex2bin(tests[i].hexTag, tag, TAGLEN)) +// { +// fprintf(stderr, "Bad hex in test %d\n", i); +// continue; +// } + +// /* AES key schedule */ +// if (AES_set_encrypt_key(key, 128, &aes_key) < 0) { +// fprintf(stderr, "AES_set_encrypt_key failed\n"); +// return 1; +// } + +// /**************************************************************** +// * 1) “Plain” GCM encrypt → CT + tag +// ****************************************************************/ +// ctx = CRYPTO_gcm128_new(&aes_key, aes_block); +// CRYPTO_gcm128_init(ctx, &aes_key, aes_block); +// CRYPTO_gcm128_setiv(ctx, iv, IVLEN); +// CRYPTO_gcm128_aad(ctx, aad, AADLEN); +// if (CRYPTO_gcm128_encrypt(ctx, pt, ct2, PTLEN) != PTLEN) +// pass_encrypt = 0; +// CRYPTO_gcm128_tag(ctx, tag2, TAGLEN); + +// if (memcmp(ct2, ct, CTLEN)!=0 || memcmp(tag2, tag, TAGLEN)!=0) +// pass_encrypt = 0; + +// CRYPTO_gcm128_release(ctx); + +// /**************************************************************** +// * 2) “Plain” GCM decrypt → verify tag + PT round-trip +// ****************************************************************/ +// ctx = CRYPTO_gcm128_new(&aes_key, aes_block); +// CRYPTO_gcm128_init(ctx, &aes_key, aes_block); +// CRYPTO_gcm128_setiv(ctx, iv, IVLEN); +// CRYPTO_gcm128_aad(ctx, aad, AADLEN); +// if (CRYPTO_gcm128_decrypt(ctx, ct, pt2, PTLEN) != PTLEN) +// pass_decrypt = 0; +// if (CRYPTO_gcm128_finish(ctx, tag, TAGLEN) != 0) +// pass_decrypt = 0; +// CRYPTO_gcm128_release(ctx); + +// /**************************************************************** +// * 3) “CTR32” GCM encrypt → CT + tag +// ****************************************************************/ +// ctx = CRYPTO_gcm128_new(&aes_key, aes_block); +// CRYPTO_gcm128_init(ctx, &aes_key, aes_block); +// CRYPTO_gcm128_setiv(ctx, iv, IVLEN); +// CRYPTO_gcm128_aad(ctx, aad, AADLEN); +// if (CRYPTO_gcm128_encrypt_ctr32(ctx, pt, ct2, PTLEN, aes_ctr) != PTLEN) +// pass_encrypt = 0; +// CRYPTO_gcm128_tag(ctx, tag2, TAGLEN); +// if (memcmp(ct2, ct, CTLEN)!=0 || memcmp(tag2, tag, TAGLEN)!=0) +// pass_encrypt = 0; +// CRYPTO_gcm128_release(ctx); + +// /**************************************************************** +// * 4) “CTR32” GCM decrypt → verify tag + PT round-trip +// ****************************************************************/ +// ctx = CRYPTO_gcm128_new(&aes_key, aes_block); +// CRYPTO_gcm128_init(ctx, &aes_key, aes_block); +// CRYPTO_gcm128_setiv(ctx, iv, IVLEN); +// CRYPTO_gcm128_aad(ctx, aad, AADLEN); +// if (CRYPTO_gcm128_decrypt_ctr32(ctx, ct, pt2, PTLEN, aes_ctr) != PTLEN) +// pass_decrypt = 0; +// if (CRYPTO_gcm128_finish(ctx, tag, TAGLEN) != 0) +// pass_decrypt = 0; +// CRYPTO_gcm128_release(ctx); + +// printf("Test %d: encrypt %s, decrypt %s\n", +// i, +// pass_encrypt ? "PASS" : "FAIL", +// pass_decrypt ? "PASS" : "FAIL"); +// } + +// return 0; +// } \ No newline at end of file diff --git a/src/mode/cbc128.c b/src/mode/cbc128.c new file mode 100644 index 0000000..cd21000 --- /dev/null +++ b/src/mode/cbc128.c @@ -0,0 +1,167 @@ +/* + * Copyright 2008-2021 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include "mode.h" + +#if !defined(STRICT_ALIGNMENT) && !defined(PEDANTIC) +# define STRICT_ALIGNMENT 0 +#endif + +#if defined(__GNUC__) && !STRICT_ALIGNMENT +typedef size_t size_t_aX __attribute((__aligned__(1))); +#else +typedef size_t size_t_aX; +#endif + +void CRYPTO_cbc128_encrypt(const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], block128_f block) { + size_t n; + const u8 *iv = ivec; + + if (len == 0) + return; + + if (STRICT_ALIGNMENT && + ((size_t)in | (size_t)out | (size_t)ivec) % sizeof(size_t) != 0) { + while (len >= 16) { + for (n = 0; n < 16; ++n) + out[n] = in[n] ^ iv[n]; + (*block) (out, out, key); + iv = out; + len -= 16; + in += 16; + out += 16; + } + } else { + while (len >= 16) { + for (n = 0; n < 16; n += sizeof(size_t)) + *(size_t_aX *)(out + n) = + *(size_t_aX *)(in + n) ^ *(size_t_aX *)(iv + n); + (*block) (out, out, key); + iv = out; + len -= 16; + in += 16; + out += 16; + } + } + + while (len) { + for (n = 0; n < 16 && n < len; ++n) + out[n] = in[n] ^ iv[n]; + for (; n < 16; ++n) + out[n] = iv[n]; + (*block) (out, out, key); + iv = out; + if (len <= 16) + break; + len -= 16; + in += 16; + out += 16; + } + if (ivec != iv) + memcpy(ivec, iv, 16); +} + +void CRYPTO_cbc128_decrypt(const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], block128_f block) +{ + size_t n; + union { + size_t t[16 / sizeof(size_t)]; + u8 c[16]; + } tmp; + + if (len == 0) + return; + + if (in != out) { + const u8 *iv = ivec; + + if (STRICT_ALIGNMENT && + ((size_t)in | (size_t)out | (size_t)ivec) % sizeof(size_t) != 0) { + while (len >= 16) { + (*block) (in, out, key); + for (n = 0; n < 16; ++n) + out[n] ^= iv[n]; + iv = in; + len -= 16; + in += 16; + out += 16; + } + } else if (16 % sizeof(size_t) == 0) { /* always true */ + while (len >= 16) { + size_t_aX *out_t = (size_t_aX *)out; + size_t_aX *iv_t = (size_t_aX *)iv; + + (*block) (in, out, key); + for (n = 0; n < 16 / sizeof(size_t); n++) + out_t[n] ^= iv_t[n]; + iv = in; + len -= 16; + in += 16; + out += 16; + } + } + if (ivec != iv) + memcpy(ivec, iv, 16); + } else { + if (STRICT_ALIGNMENT && + ((size_t)in | (size_t)out | (size_t)ivec) % sizeof(size_t) != 0) { + u8 c; + while (len >= 16) { + (*block) (in, tmp.c, key); + for (n = 0; n < 16; ++n) { + c = in[n]; + out[n] = tmp.c[n] ^ ivec[n]; + ivec[n] = c; + } + len -= 16; + in += 16; + out += 16; + } + } else if (16 % sizeof(size_t) == 0) { /* always true */ + while (len >= 16) { + size_t c; + size_t_aX *out_t = (size_t_aX *)out; + size_t_aX *ivec_t = (size_t_aX *)ivec; + const size_t_aX *in_t = (const size_t_aX *)in; + + (*block) (in, tmp.c, key); + for (n = 0; n < 16 / sizeof(size_t); n++) { + c = in_t[n]; + out_t[n] = tmp.t[n] ^ ivec_t[n]; + ivec_t[n] = c; + } + len -= 16; + in += 16; + out += 16; + } + } + } + + while (len) { + u8 c; + (*block) (in, tmp.c, key); + for (n = 0; n < 16 && n < len; ++n) { + c = in[n]; + out[n] = tmp.c[n] ^ ivec[n]; + ivec[n] = c; + } + if (len <= 16) { + for (; n < 16; ++n) + ivec[n] = in[n]; + break; + } + len -= 16; + in += 16; + out += 16; + } +} diff --git a/src/mode/ctr128.c b/src/mode/ctr128.c new file mode 100644 index 0000000..8db7b7c --- /dev/null +++ b/src/mode/ctr128.c @@ -0,0 +1,200 @@ +/* + * Copyright 2008-2021 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + + #include "mode.h" + +#if defined(__GNUC__) && !defined(STRICT_ALIGNMENT) +typedef size_t size_t_aX __attribute((__aligned__(1))); +#else +typedef size_t size_t_aX; +#endif + +/* + * NOTE: the IV/counter CTR mode is big-endian. The code itself is + * endian-neutral. + */ + +/* increment counter (128-bit int) by 1 */ +static void ctr128_inc(u8 *counter) { + u32 n = 16, c = 1; + + do { + --n; + c += counter[n]; + counter[n] = (u8)c; + c >>= 8; + } while (n); +} +static void ctr128_inc_aligned(unsigned char *counter) { + size_t *data, c, d, n; + + if (((size_t)counter % sizeof(size_t)) != 0) { + ctr128_inc(counter); + return; + } + + data = (size_t *)counter; + c = 1; + n = 16 / sizeof(size_t); + do { + --n; + d = data[n] += c; + /* did addition carry? */ + c = ((d - c) & ~d) >> (sizeof(size_t) * 8 - 1); + } while (n); +} + +/* + * The input encrypted as though 128bit counter mode is being used. The + * extra state information to record how much of the 128bit block we have + * used is contained in *num, and the encrypted counter is kept in + * ecount_buf. Both *num and ecount_buf must be initialised with zeros + * before the first call to CRYPTO_ctr128_encrypt(). This algorithm assumes + * that the counter is in the x lower bits of the IV (ivec), and that the + * application has full control over overflow and the rest of the IV. This + * implementation takes NO responsibility for checking that the counter + * doesn't overflow into the rest of the IV when incremented. + */ +void CRYPTO_ctr128_encrypt(const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], + u8 ecount_buf[16], unsigned int *num, + block128_f block) { + u32 n; + size_t l = 0; + + n = *num; + + if (16 % sizeof(size_t) == 0) { /* always true actually */ + do { + while (n && len) { + *(out++) = *(in++) ^ ecount_buf[n]; + --len; + n = (n + 1) % 16; + } + +# if defined(STRICT_ALIGNMENT) + if (((size_t)in | (size_t)out | (size_t)ecount_buf) + % sizeof(size_t) != 0) + break; +# endif + while (len >= 16) { + (*block) (ivec, ecount_buf, key); + ctr128_inc_aligned(ivec); + for (n = 0; n < 16; n += sizeof(size_t)) + *(size_t_aX *)(out + n) = + *(size_t_aX *)(in + n) + ^ *(size_t_aX *)(ecount_buf + n); + len -= 16; + out += 16; + in += 16; + n = 0; + } + if (len) { + (*block) (ivec, ecount_buf, key); + ctr128_inc_aligned(ivec); + while (len--) { + out[n] = in[n] ^ ecount_buf[n]; + ++n; + } + } + *num = n; + return; + } while (0); + } + /* the rest would be commonly eliminated by x86* compiler */ + + while (l < len) { + if (n == 0) { + (*block) (ivec, ecount_buf, key); + ctr128_inc(ivec); + } + out[l] = in[l] ^ ecount_buf[n]; + ++l; + n = (n + 1) % 16; + } + + *num = n; +} + +/* increment upper 96 bits of 128-bit counter by 1 */ +static void ctr96_inc(u8 *counter) +{ + u32 n = 12, c = 1; + + do { + --n; + c += counter[n]; + counter[n] = (u8)c; + c >>= 8; + } while (n); +} + +void CRYPTO_ctr128_encrypt_ctr32(const u8 *in, u8 *out, + size_t len, const void *key, + u8 ivec[16], + u8 ecount_buf[16], + unsigned int *num, ctr128_f func) { + u32 n, ctr32; + + n = *num; + + while (n && len) { + *(out++) = *(in++) ^ ecount_buf[n]; + --len; + n = (n + 1) % 16; + } + + ctr32 = GETU32(ivec + 12); + while (len >= 16) { + size_t blocks = len / 16; + /* + * 1<<28 is just a not-so-small yet not-so-large number... + * Below condition is practically never met, but it has to + * be checked for code correctness. + */ + if (sizeof(size_t) > sizeof(unsigned int) && blocks > (1U << 28)) + blocks = (1U << 28); + /* + * As (*func) operates on 32-bit counter, caller + * has to handle overflow. 'if' below detects the + * overflow, which is then handled by limiting the + * amount of blocks to the exact overflow point... + */ + ctr32 += (u32)blocks; + if (ctr32 < blocks) { + blocks -= ctr32; + ctr32 = 0; + } + (*func) (in, out, blocks, key, ivec); + /* (*ctr) does not update ivec, caller does: */ + PUTU32(ivec + 12, ctr32); + /* ... overflow was detected, propagate carry. */ + if (ctr32 == 0) + ctr96_inc(ivec); + blocks *= 16; + len -= blocks; + out += blocks; + in += blocks; + } + if (len) { + memset(ecount_buf, 0, 16); + (*func) (ecount_buf, ecount_buf, 1, key, ivec); + ++ctr32; + PUTU32(ivec + 12, ctr32); + if (ctr32 == 0) + ctr96_inc(ivec); + while (len--) { + out[n] = in[n] ^ ecount_buf[n]; + ++n; + } + } + + *num = n; +} diff --git a/src/mode/gcm128.c b/src/mode/gcm128.c new file mode 100644 index 0000000..7300e2d --- /dev/null +++ b/src/mode/gcm128.c @@ -0,0 +1,850 @@ +/* + * Copyright 2010-2024 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include "mode.h" + +#define GCM_MUL(ctx) ctx->funcs.gmult(ctx->Xi.u,ctx->Htable) +/* + * GHASH_CHUNK is "stride parameter" missioned to mitigate cache trashing + * effect. In other words idea is to hash data while it's still in L1 cache + * after encryption pass... + */ +# define GHASH_CHUNK (3*1024) + +#if defined(__GNUC__) && !defined(STRICT_ALIGNMENT) +typedef size_t size_t_aX __attribute((__aligned__(1))); +#else +typedef size_t size_t_aX; +#endif + +static void gcm_get_funcs(struct gcm_funcs_st *ctx) +{ + /* set defaults -- overridden below as needed */ + ctx->ginit = gcm_init_4bit; + ctx->gmult = gcm_gmult_4bit; + ctx->ghash = gcm_ghash_4bit; +} + +/*- + * + * NOTE: TABLE_BITS and all non-4bit implementations have been removed in 3.1. + * + * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should + * never be set to 8. 8 is effectively reserved for testing purposes. + * TABLE_BITS>1 are lookup-table-driven implementations referred to as + * "Shoup's" in GCM specification. In other words OpenSSL does not cover + * whole spectrum of possible table driven implementations. Why? In + * non-"Shoup's" case memory access pattern is segmented in such manner, + * that it's trivial to see that cache timing information can reveal + * fair portion of intermediate hash value. Given that ciphertext is + * always available to attacker, it's possible for him to attempt to + * deduce secret parameter H and if successful, tamper with messages + * [which is nothing but trivial in CTR mode]. In "Shoup's" case it's + * not as trivial, but there is no reason to believe that it's resistant + * to cache-timing attack. And the thing about "8-bit" implementation is + * that it consumes 16 (sixteen) times more memory, 4KB per individual + * key + 1KB shared. Well, on pros side it should be twice as fast as + * "4-bit" version. And for gcc-generated x86[_64] code, "8-bit" version + * was observed to run ~75% faster, closer to 100% for commercial + * compilers... Yet "4-bit" procedure is preferred, because it's + * believed to provide better security-performance balance and adequate + * all-round performance. "All-round" refers to things like: + * + * - shorter setup time effectively improves overall timing for + * handling short messages; + * - larger table allocation can become unbearable because of VM + * subsystem penalties (for example on Windows large enough free + * results in VM working set trimming, meaning that consequent + * malloc would immediately incur working set expansion); + * - larger table has larger cache footprint, which can affect + * performance of other code paths (not necessarily even from same + * thread in Hyper-Threading world); + * + * Value of 1 is not appropriate for performance reasons. + */ +#define REDUCE1BIT(V) do { \ + if (sizeof(size_t)==8) { \ + u64 T = U64(0xe100000000000000) & (0-(V.lo&1)); \ + V.lo = (V.hi<<63)|(V.lo>>1); \ + V.hi = (V.hi>>1 )^T; \ + } \ + else { \ + u32 T = 0xe1000000U & (0-(u32)(V.lo&1)); \ + V.lo = (V.hi<<63)|(V.lo>>1); \ + V.hi = (V.hi>>1 )^((u64)T<<32); \ + } \ +} while(0) +void gcm_init_4bit(u128 Htable[16], const u64 H[2]) { + u128 V; + Htable[0].hi = 0; + Htable[0].lo = 0; + V.hi = H[0]; + V.lo = H[1]; + Htable[8] = V; + REDUCE1BIT(V); + Htable[4] = V; + REDUCE1BIT(V); + Htable[2] = V; + REDUCE1BIT(V); + Htable[1] = V; + Htable[3].hi = V.hi ^ Htable[2].hi, Htable[3].lo = V.lo ^ Htable[2].lo; + V = Htable[4]; + Htable[5].hi = V.hi ^ Htable[1].hi, Htable[5].lo = V.lo ^ Htable[1].lo; + Htable[6].hi = V.hi ^ Htable[2].hi, Htable[6].lo = V.lo ^ Htable[2].lo; + Htable[7].hi = V.hi ^ Htable[3].hi, Htable[7].lo = V.lo ^ Htable[3].lo; + V = Htable[8]; + Htable[9].hi = V.hi ^ Htable[1].hi, Htable[9].lo = V.lo ^ Htable[1].lo; + Htable[10].hi = V.hi ^ Htable[2].hi, Htable[10].lo = V.lo ^ Htable[2].lo; + Htable[11].hi = V.hi ^ Htable[3].hi, Htable[11].lo = V.lo ^ Htable[3].lo; + Htable[12].hi = V.hi ^ Htable[4].hi, Htable[12].lo = V.lo ^ Htable[4].lo; + Htable[13].hi = V.hi ^ Htable[5].hi, Htable[13].lo = V.lo ^ Htable[5].lo; + Htable[14].hi = V.hi ^ Htable[6].hi, Htable[14].lo = V.lo ^ Htable[6].lo; + Htable[15].hi = V.hi ^ Htable[7].hi, Htable[15].lo = V.lo ^ Htable[7].lo; +} + +#define PACK(s) ((size_t)(s)<<(sizeof(size_t)*8-16)) +static const size_t rem_4bit[16] = { + PACK(0x0000), PACK(0x1C20), PACK(0x3840), PACK(0x2460), + PACK(0x7080), PACK(0x6CA0), PACK(0x48C0), PACK(0x54E0), + PACK(0xE100), PACK(0xFD20), PACK(0xD940), PACK(0xC560), + PACK(0x9180), PACK(0x8DA0), PACK(0xA9C0), PACK(0xB5E0) +}; +void gcm_gmult_4bit(u64 Xi[2], const u128 Htable[16]) { + u128 Z; + int cnt = 15; + size_t rem, nlo, nhi; + + nlo = ((const u8 *)Xi)[15]; + nhi = nlo >> 4; + nlo &= 0xf; + + Z.hi = Htable[nlo].hi; + Z.lo = Htable[nlo].lo; + + while (1) { + rem = (size_t)Z.lo & 0xf; + Z.lo = (Z.hi << 60) | (Z.lo >> 4); + Z.hi = (Z.hi >> 4); + if (sizeof(size_t) == 8) + Z.hi ^= rem_4bit[rem]; + else + Z.hi ^= (u64)rem_4bit[rem] << 32; + + Z.hi ^= Htable[nhi].hi; + Z.lo ^= Htable[nhi].lo; + + if (--cnt < 0) + break; + + nlo = ((const u8 *)Xi)[cnt]; + nhi = nlo >> 4; + nlo &= 0xf; + + rem = (size_t)Z.lo & 0xf; + Z.lo = (Z.hi << 60) | (Z.lo >> 4); + Z.hi = (Z.hi >> 4); + if (sizeof(size_t) == 8) + Z.hi ^= rem_4bit[rem]; + else + Z.hi ^= (u64)rem_4bit[rem] << 32; + + Z.hi ^= Htable[nlo].hi; + Z.lo ^= Htable[nlo].lo; + } + +# ifdef BSWAP8 + Xi[0] = BSWAP8(Z.hi); + Xi[1] = BSWAP8(Z.lo); +# else + u8 *p = (u8 *)Xi; + u32 v; + v = (u32)(Z.hi >> 32); + PUTU32(p, v); + v = (u32)(Z.hi); + PUTU32(p + 4, v); + v = (u32)(Z.lo >> 32); + PUTU32(p + 8, v); + v = (u32)(Z.lo); + PUTU32(p + 12, v); +# endif +} +/* + * Streamed gcm_mult_4bit, see CRYPTO_gcm128_[en|de]crypt for + * details... Compiler-generated code doesn't seem to give any + * performance improvement, at least not on x86[_64]. It's here + * mostly as reference and a placeholder for possible future + * non-trivial optimization[s]... + */ +void gcm_ghash_4bit(u64 Xi[2], const u128 Htable[16], + const u8 *inp, size_t len) { + u128 Z; + int cnt; + size_t rem, nlo, nhi; + do { + cnt = 15; + nlo = ((const u8 *)Xi)[15]; + nlo ^= inp[15]; + nhi = nlo >> 4; + nlo &= 0xf; + + Z.hi = Htable[nlo].hi; + Z.lo = Htable[nlo].lo; + + while (1) { + rem = (size_t)Z.lo & 0xf; + Z.lo = (Z.hi << 60) | (Z.lo >> 4); + Z.hi = (Z.hi >> 4); + if (sizeof(size_t) == 8) + Z.hi ^= rem_4bit[rem]; + else + Z.hi ^= (u64)rem_4bit[rem] << 32; + + Z.hi ^= Htable[nhi].hi; + Z.lo ^= Htable[nhi].lo; + + if (--cnt < 0) + break; + + nlo = ((const u8 *)Xi)[cnt]; + nlo ^= inp[cnt]; + nhi = nlo >> 4; + nlo &= 0xf; + + rem = (size_t)Z.lo & 0xf; + Z.lo = (Z.hi << 60) | (Z.lo >> 4); + Z.hi = (Z.hi >> 4); + if (sizeof(size_t) == 8) + Z.hi ^= rem_4bit[rem]; + else + Z.hi ^= (u64)rem_4bit[rem] << 32; + + Z.hi ^= Htable[nlo].hi; + Z.lo ^= Htable[nlo].lo; + } + + +# ifdef BSWAP8 + Xi[0] = BSWAP8(Z.hi); + Xi[1] = BSWAP8(Z.lo); +# else + u8 *p = (u8 *)Xi; + u32 v; + v = (u32)(Z.hi >> 32); + PUTU32(p, v); + v = (u32)(Z.hi); + PUTU32(p + 4, v); + v = (u32)(Z.lo >> 32); + PUTU32(p + 8, v); + v = (u32)(Z.lo); + PUTU32(p + 12, v); +# endif + + inp += 16; + /* Block size is 128 bits so len is a multiple of 16 */ + len -= 16; + } while (len > 0); +} + +void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, void *key, block128_f block) { + memset(ctx, 0, sizeof(*ctx)); + ctx->block = block; + ctx->key = key; + + (*block) (ctx->H.c, ctx->H.c, key); + + /* H is stored in host byte order */ +#ifdef BSWAP8 + ctx->H.u[0] = BSWAP8(ctx->H.u[0]); + ctx->H.u[1] = BSWAP8(ctx->H.u[1]); +#else + u8 *p = ctx->H.c; + u64 hi, lo; + hi = (u64)GETU32(p) << 32 | GETU32(p + 4); + lo = (u64)GETU32(p + 8) << 32 | GETU32(p + 12); + ctx->H.u[0] = hi; + ctx->H.u[1] = lo; +#endif + + gcm_get_funcs(&ctx->funcs); + ctx->funcs.ginit(ctx->Htable, ctx->H.u); +} + +void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const u8 *iv, size_t len) { + u32 ctr; + + ctx->len.u[0] = 0; /* AAD length */ + ctx->len.u[1] = 0; /* message length */ + ctx->ares = 0; + ctx->mres = 0; + + if (len == 12) { + memcpy(ctx->Yi.c, iv, 12); + ctx->Yi.c[12] = 0; + ctx->Yi.c[13] = 0; + ctx->Yi.c[14] = 0; + ctx->Yi.c[15] = 1; + ctr = 1; + } else { + size_t i; + u64 len0 = len; + + /* Borrow ctx->Xi to calculate initial Yi */ + ctx->Xi.u[0] = 0; + ctx->Xi.u[1] = 0; + + while (len >= 16) { + for (i = 0; i < 16; ++i) + ctx->Xi.c[i] ^= iv[i]; + GCM_MUL(ctx); + iv += 16; + len -= 16; + } + if (len) { + for (i = 0; i < len; ++i) + ctx->Xi.c[i] ^= iv[i]; + GCM_MUL(ctx); + } + len0 <<= 3; +#ifdef BSWAP8 + ctx->Xi.u[1] ^= BSWAP8(len0); +#else + ctx->Xi.c[8] ^= (u8)(len0 >> 56); + ctx->Xi.c[9] ^= (u8)(len0 >> 48); + ctx->Xi.c[10] ^= (u8)(len0 >> 40); + ctx->Xi.c[11] ^= (u8)(len0 >> 32); + ctx->Xi.c[12] ^= (u8)(len0 >> 24); + ctx->Xi.c[13] ^= (u8)(len0 >> 16); + ctx->Xi.c[14] ^= (u8)(len0 >> 8); + ctx->Xi.c[15] ^= (u8)(len0); +#endif + GCM_MUL(ctx); + +#ifdef BSWAP4 + ctr = BSWAP4(ctx->Xi.d[3]); +#else + ctr = GETU32(ctx->Xi.c + 12); +#endif + + /* Copy borrowed Xi to Yi */ + ctx->Yi.u[0] = ctx->Xi.u[0]; + ctx->Yi.u[1] = ctx->Xi.u[1]; + } + + ctx->Xi.u[0] = 0; + ctx->Xi.u[1] = 0; + + (*ctx->block) (ctx->Yi.c, ctx->EK0.c, ctx->key); + ++ctr; +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else + PUTU32(ctx->Yi.c + 12, ctr); +#endif +} + +int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const u8 *aad, size_t len) { + size_t i; + unsigned int n; + u64 alen = ctx->len.u[0]; + + if (ctx->len.u[1]) + return -2; + + alen += len; + if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len)) + return -1; + ctx->len.u[0] = alen; + + n = ctx->ares; + if (n) { + while (n && len) { + ctx->Xi.c[n] ^= *(aad++); + --len; + n = (n + 1) % 16; + } + if (n == 0) + GCM_MUL(ctx); + else { + ctx->ares = n; + return 0; + } + } + while (len >= 16) { + for (i = 0; i < 16; ++i) + ctx->Xi.c[i] ^= aad[i]; + GCM_MUL(ctx); + aad += 16; + len -= 16; + } + if (len) { + n = (unsigned int)len; + for (i = 0; i < len; ++i) + ctx->Xi.c[i] ^= aad[i]; + } + + ctx->ares = n; + return 0; +} + +int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const u8 *in, u8 *out, size_t len) { + u32 n, ctr, mres; + size_t i; + u64 mlen = ctx->len.u[1]; + block128_f block = ctx->block; + void *key = ctx->key; + + mlen += len; + if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len)) + return -1; + ctx->len.u[1] = mlen; + + mres = ctx->mres; + + if (ctx->ares) { + GCM_MUL(ctx); + ctx->ares = 0; + } + +#ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +#else + ctr = GETU32(ctx->Yi.c + 12); +#endif + + n = mres % 16; + if (16 % sizeof(size_t) == 0) { /* always true actually */ + do { + if (n) { + while (n && len) { + ctx->Xi.c[n] ^= *(out++) = *(in++) ^ ctx->EKi.c[n]; + --len; + n = (n + 1) % 16; + } + if (n == 0) { + GCM_MUL(ctx); + mres = 0; + } else { + ctx->mres = n; + return 0; + } + } +# if defined(STRICT_ALIGNMENT) + if (((size_t)in | (size_t)out) % sizeof(size_t) != 0) + break; +# endif + while (len >= 16) { + size_t *out_t = (size_t *)out; + const size_t *in_t = (const size_t *)in; + + (*block) (ctx->Yi.c, ctx->EKi.c, key); + ++ctr; +# ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +# else + PUTU32(ctx->Yi.c + 12, ctr); +# endif + for (i = 0; i < 16 / sizeof(size_t); ++i) + ctx->Xi.t[i] ^= out_t[i] = in_t[i] ^ ctx->EKi.t[i]; + GCM_MUL(ctx); + out += 16; + in += 16; + len -= 16; + } + if (len) { + (*block) (ctx->Yi.c, ctx->EKi.c, key); + ++ctr; +# ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +# else + PUTU32(ctx->Yi.c + 12, ctr); +# endif + while (len--) { + ctx->Xi.c[n] ^= out[n] = in[n] ^ ctx->EKi.c[n]; + ++n; + } + mres = n; + } + + ctx->mres = mres; + return 0; + } while (0); + } + + for (i = 0; i < len; ++i) { + if (n == 0) { + (*block) (ctx->Yi.c, ctx->EKi.c, key); + ++ctr; +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else + PUTU32(ctx->Yi.c + 12, ctr); +#endif + } + + ctx->Xi.c[n] ^= out[i] = in[i] ^ ctx->EKi.c[n]; + mres = n = (n + 1) % 16; + if (n == 0) + GCM_MUL(ctx); + } + + ctx->mres = mres; + return 0; +} + +int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const u8 *in, u8 *out, size_t len) { + u32 n, ctr, mres; + size_t i; + u64 mlen = ctx->len.u[1]; + block128_f block = ctx->block; + void *key = ctx->key; + + mlen += len; + if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len)) + return -1; + ctx->len.u[1] = mlen; + + mres = ctx->mres; + + if (ctx->ares) { + /* First call to decrypt finalizes GHASH(AAD) */ + GCM_MUL(ctx); + ctx->ares = 0; + } + +#ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +#else + ctr = GETU32(ctx->Yi.c + 12); +#endif + + n = mres % 16; + if (16 % sizeof(size_t) == 0) { /* always true actually */ + do { + if (n) { + while (n && len) { + u8 c = *(in++); + *(out++) = c ^ ctx->EKi.c[n]; + ctx->Xi.c[n] ^= c; + --len; + n = (n + 1) % 16; + } + if (n == 0) { + GCM_MUL(ctx); + mres = 0; + } else { + ctx->mres = n; + return 0; + } + } +# if defined(STRICT_ALIGNMENT) + if (((size_t)in | (size_t)out) % sizeof(size_t) != 0) + break; +# endif + while (len >= 16) { + size_t *out_t = (size_t *)out; + const size_t *in_t = (const size_t *)in; + + (*block) (ctx->Yi.c, ctx->EKi.c, key); + ++ctr; +# ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +# else + PUTU32(ctx->Yi.c + 12, ctr); +# endif + for (i = 0; i < 16 / sizeof(size_t); ++i) { + size_t c = in_t[i]; + out_t[i] = c ^ ctx->EKi.t[i]; + ctx->Xi.t[i] ^= c; + } + GCM_MUL(ctx); + out += 16; + in += 16; + len -= 16; + } + if (len) { + (*block) (ctx->Yi.c, ctx->EKi.c, key); + ++ctr; +# ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +# else + PUTU32(ctx->Yi.c + 12, ctr); +# endif + while (len--) { + u8 c = in[n]; + ctx->Xi.c[n] ^= c; + out[n] = c ^ ctx->EKi.c[n]; + ++n; + } + mres = n; + } + + ctx->mres = mres; + return 0; + } while (0); + } + + for (i = 0; i < len; ++i) { + u8 c; + if (n == 0) { + (*block) (ctx->Yi.c, ctx->EKi.c, key); + ++ctr; +#ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +#else + PUTU32(ctx->Yi.c + 12, ctr); +#endif + } + + c = in[i]; + out[i] = c ^ ctx->EKi.c[n]; + ctx->Xi.c[n] ^= c; + mres = n = (n + 1) % 16; + if (n == 0) + GCM_MUL(ctx); + } + + ctx->mres = mres; + return 0; +} + +int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, const u8 *in, u8 *out, size_t len, ctr128_f stream) { + u32 n, ctr, mres; + size_t i; + u64 mlen = ctx->len.u[1]; + void *key = ctx->key; + + mlen += len; + if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len)) + return -1; + ctx->len.u[1] = mlen; + + mres = ctx->mres; + + if (ctx->ares) { + /* First call to encrypt finalizes GHASH(AAD) */ + GCM_MUL(ctx); + ctx->ares = 0; + } + +# ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +# else + ctr = GETU32(ctx->Yi.c + 12); +# endif + + n = mres % 16; + if (n) { + while (n && len) { + ctx->Xi.c[n] ^= *(out++) = *(in++) ^ ctx->EKi.c[n]; + --len; + n = (n + 1) % 16; + } + if (n == 0) { + GCM_MUL(ctx); + mres = 0; + } else { + ctx->mres = n; + return 0; + } + } + + if ((i = (len & (size_t)-16))) { + size_t j = i / 16; + + (*stream) (in, out, j, key, ctx->Yi.c); + ctr += (unsigned int)j; +# ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +# else + PUTU32(ctx->Yi.c + 12, ctr); +# endif + in += i; + len -= i; +# if defined(GHASH) + GHASH(ctx, out, i); + out += i; +# else + while (j--) { + for (i = 0; i < 16; ++i) + ctx->Xi.c[i] ^= out[i]; + GCM_MUL(ctx); + out += 16; + } +# endif + } + if (len) { + (*ctx->block) (ctx->Yi.c, ctx->EKi.c, key); + ++ctr; +# ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +# else + PUTU32(ctx->Yi.c + 12, ctr); +# endif + while (len--) { + ctx->Xi.c[mres++] ^= out[n] = in[n] ^ ctx->EKi.c[n]; + ++n; + } + } + + ctx->mres = mres; + return 0; +} + +int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, const u8 *in, u8 *out, size_t len, ctr128_f stream) { + u32 n, ctr, mres; + size_t i; + u64 mlen = ctx->len.u[1]; + void *key = ctx->key; + + mlen += len; + if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len)) + return -1; + ctx->len.u[1] = mlen; + + mres = ctx->mres; + + if (ctx->ares) { + /* First call to decrypt finalizes GHASH(AAD) */ + GCM_MUL(ctx); + ctx->ares = 0; + } + +# ifdef BSWAP4 + ctr = BSWAP4(ctx->Yi.d[3]); +# else + ctr = GETU32(ctx->Yi.c + 12); +# endif + + n = mres % 16; + if (n) { + while (n && len) { + u8 c = *(in++); + *(out++) = c ^ ctx->EKi.c[n]; + ctx->Xi.c[n] ^= c; + --len; + n = (n + 1) % 16; + } + if (n == 0) { + GCM_MUL(ctx); + mres = 0; + } else { + ctx->mres = n; + return 0; + } + } + if ((i = (len & (size_t)-16))) { + size_t j = i / 16; + + while (j--) { + size_t k; + for (k = 0; k < 16; ++k) + ctx->Xi.c[k] ^= in[k]; + GCM_MUL(ctx); + in += 16; + } + j = i / 16; + in -= i; + + (*stream) (in, out, j, key, ctx->Yi.c); + ctr += (unsigned int)j; + +# ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +# else + PUTU32(ctx->Yi.c + 12, ctr); +# endif + + out += i; + in += i; + len -= i; + } + if (len) { + (*ctx->block) (ctx->Yi.c, ctx->EKi.c, key); + ++ctr; +# ifdef BSWAP4 + ctx->Yi.d[3] = BSWAP4(ctr); +# else + PUTU32(ctx->Yi.c + 12, ctr); +# endif + while (len--) { + u8 c = in[n]; + ctx->Xi.c[mres++] ^= c; + out[n] = c ^ ctx->EKi.c[n]; + ++n; + } + } + + ctx->mres = mres; + return 0; +} + +int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx, const u8 *tag, size_t len) { + u64 alen = ctx->len.u[0] << 3; + u64 clen = ctx->len.u[1] << 3; + + if (ctx->mres || ctx->ares) + GCM_MUL(ctx); +#ifdef BSWAP8 + alen = BSWAP8(alen); + clen = BSWAP8(clen); +#else + u8 *p = ctx->len.c; + + ctx->len.u[0] = alen; + ctx->len.u[1] = clen; + + alen = (u64)GETU32(p) << 32 | GETU32(p + 4); + clen = (u64)GETU32(p + 8) << 32 | GETU32(p + 12); +#endif + + ctx->Xi.u[0] ^= alen; + ctx->Xi.u[1] ^= clen; + GCM_MUL(ctx); + + ctx->Xi.u[0] ^= ctx->EK0.u[0]; + ctx->Xi.u[1] ^= ctx->EK0.u[1]; + + if (tag && len <= sizeof(ctx->Xi)) + return CRYPTO_memcmp(ctx->Xi.c, tag, len); + else + return -1; +} + +void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, unsigned char *tag, size_t len) +{ + CRYPTO_gcm128_finish(ctx, NULL, 0); + memcpy(tag, ctx->Xi.c, + len <= sizeof(ctx->Xi.c) ? len : sizeof(ctx->Xi.c)); +} + +GCM128_CONTEXT *CRYPTO_gcm128_new(void *key, block128_f block) { + GCM128_CONTEXT *ret; + + if ((ret = malloc(sizeof(*ret))) != NULL) + CRYPTO_gcm128_init(ret, key, block); + + return ret; +} + +void CRYPTO_gcm128_release(GCM128_CONTEXT *ctx) { + if (ctx == NULL) + return; + /* Clear sensitive data */ + memset(ctx->Yi.c, 0, sizeof(ctx->Yi)); + memset(ctx->EKi.c, 0, sizeof(ctx->EKi)); + memset(ctx->EK0.c, 0, sizeof(ctx->EK0)); + memset(ctx->Xi.c, 0, sizeof(ctx->Xi)); + memset(ctx->H.c, 0, sizeof(ctx->H)); + memset(ctx->len.c, 0, sizeof(ctx->len)); + memset(ctx->Htable, 0, sizeof(ctx->Htable)); + ctx->ares = 0; + ctx->mres = 0; + ctx->block = NULL; + ctx->key = NULL; +} \ No newline at end of file diff --git a/z_old/Makefile b/z_old/Makefile new file mode 100644 index 0000000..dbb45de --- /dev/null +++ b/z_old/Makefile @@ -0,0 +1,108 @@ +############################################################################### +# Makefile for a CryptoModule +# +# Targets: +# build : Compile + link everything into an executable +# run : Run the resulting binary +# clean : Remove all build artifacts +# rebuild : Clean first, then build +# valgrind: Run the binary under Valgrind for memory checking +# asan : Build with AddressSanitizer enabled and run +# gdb : Build with debugging symbols and launch GDB for in-depth inspection +# inspect : Inspect the binary with nm and objdump +# TBA +############################################################################### + +# --- Project-wide settings --- +CC := gcc +CFLAGS := -std=c99 -g -O2 -Wall -Wextra -I. -Iinclude -Isrc + +# Name of the final executable +TARGET := cryptomodule-demo + +# Directory for object files and for final binary +OBJ_DIR := build +BIN_DIR := bin + +# Automatically find all .c files in src (including subdirectories) +SRCS := $(shell find src -name '*.c') + +# Generate a list of object files by converting: +# src/xxx.c ---> build/xxx.o (preserving the subdirectory structure relative to src) +OBJS := $(patsubst src/%.c, $(OBJ_DIR)/%.o, $(SRCS)) + +# --- Phony targets (not actual files) --- +.PHONY: build run clean rebuild all + +# 'all' can default to 'build' +all: build + +############################################################################### +# 1) build : compile + link +############################################################################### +build: $(BIN_DIR)/$(TARGET) + +# Link step: gather all objects into a single executable +$(BIN_DIR)/$(TARGET): $(OBJS) + @echo "[LINK] Linking objects to create $@" + @mkdir -p $(BIN_DIR) + $(CC) $(CFLAGS) $^ -o $@ + +# Compile step: For each .c -> .o +$(OBJ_DIR)/%.o: src/%.c + @echo "[CC] Compiling $< into $@" + @mkdir -p $(dir $@) + $(CC) $(CFLAGS) -c $< -o $@ + +############################################################################### +# 2) run : run the resulting binary +############################################################################### +run: build + @echo "[RUN] Running $(BIN_DIR)/$(TARGET)" + @./$(BIN_DIR)/$(TARGET) + +############################################################################### +# 3) clean : remove build artifacts +############################################################################### +clean: + @echo "[CLEAN] Removing build artifacts..." + rm -rf $(OBJ_DIR) $(BIN_DIR) + @echo "[CLEAN] Removing *.req and *.rsp files in testvectors folder..." + find testvectors -type f \( -name '*.req' -o -name '*.rsp' \) -delete + +############################################################################### +# 4) rebuild : clean + build +############################################################################### +rebuild: clean build + +############################################################################### +# 5) valgrind : run the binary under Valgrind for memory checking +############################################################################### +valgrind: build + @echo "[VALGRIND] Running Valgrind..." + valgrind --leak-check=full ./$(BIN_DIR)/$(TARGET) + +############################################################################### +# 6) asan : build with AddressSanitizer enabled and run +############################################################################### +asan: CFLAGS += -fsanitize=address +asan: clean build + @echo "[ASAN] Running with AddressSanitizer..." + ./$(BIN_DIR)/$(TARGET) + +############################################################################### +# 7) gdb : Build with debugging symbols and launch GDB for in-depth inspection +############################################################################### +gdb: CFLAGS += -g +gdb: clean build + @echo "[GDB] Launching GDB..." + gdb $(BIN_DIR)/$(TARGET) + +############################################################################### +# 8) inspect : Inspect the binary with nm and objdump +############################################################################### +inspect: build + @echo "[INSPECT] Listing symbols with nm..." + nm $(BIN_DIR)/$(TARGET) + @echo "[INSPECT] Listing symbols with objdump..." + objdump -t $(BIN_DIR)/$(TARGET) \ No newline at end of file diff --git a/include/ansi_code.h b/z_old/include/ansi_code.h similarity index 100% rename from include/ansi_code.h rename to z_old/include/ansi_code.h diff --git a/include/api_cryptomodule.h b/z_old/include/api_cryptomodule.h similarity index 100% rename from include/api_cryptomodule.h rename to z_old/include/api_cryptomodule.h diff --git a/include/block_cipher/api_block_cipher.h b/z_old/include/block_cipher/api_block_cipher.h similarity index 100% rename from include/block_cipher/api_block_cipher.h rename to z_old/include/block_cipher/api_block_cipher.h diff --git a/include/block_cipher/block_cipher_aes.h b/z_old/include/block_cipher/block_cipher_aes.h similarity index 100% rename from include/block_cipher/block_cipher_aes.h rename to z_old/include/block_cipher/block_cipher_aes.h diff --git a/include/block_cipher/block_cipher_aria.h b/z_old/include/block_cipher/block_cipher_aria.h similarity index 100% rename from include/block_cipher/block_cipher_aria.h rename to z_old/include/block_cipher/block_cipher_aria.h diff --git a/include/block_cipher/block_cipher_lea.h b/z_old/include/block_cipher/block_cipher_lea.h similarity index 100% rename from include/block_cipher/block_cipher_lea.h rename to z_old/include/block_cipher/block_cipher_lea.h diff --git a/include/cryptomodule_test.h b/z_old/include/cryptomodule_test.h similarity index 100% rename from include/cryptomodule_test.h rename to z_old/include/cryptomodule_test.h diff --git a/include/cryptomodule_utils.h b/z_old/include/cryptomodule_utils.h similarity index 100% rename from include/cryptomodule_utils.h rename to z_old/include/cryptomodule_utils.h diff --git a/include/mode/api_mode.h b/z_old/include/mode/api_mode.h similarity index 100% rename from include/mode/api_mode.h rename to z_old/include/mode/api_mode.h diff --git a/include/mode/mode_cbc.h b/z_old/include/mode/mode_cbc.h similarity index 100% rename from include/mode/mode_cbc.h rename to z_old/include/mode/mode_cbc.h diff --git a/include/mode/mode_ctr.h b/z_old/include/mode/mode_ctr.h similarity index 100% rename from include/mode/mode_ctr.h rename to z_old/include/mode/mode_ctr.h diff --git a/include/mode/mode_ecb.h b/z_old/include/mode/mode_ecb.h similarity index 100% rename from include/mode/mode_ecb.h rename to z_old/include/mode/mode_ecb.h diff --git a/include/mode/mode_gcm.h b/z_old/include/mode/mode_gcm.h similarity index 100% rename from include/mode/mode_gcm.h rename to z_old/include/mode/mode_gcm.h diff --git a/include/sha/sha2.h b/z_old/include/sha/sha2.h similarity index 100% rename from include/sha/sha2.h rename to z_old/include/sha/sha2.h diff --git a/sage/aes.sage b/z_old/sage/aes.sage similarity index 100% rename from sage/aes.sage rename to z_old/sage/aes.sage diff --git a/sage/aes.sage.py b/z_old/sage/aes.sage.py similarity index 100% rename from sage/aes.sage.py rename to z_old/sage/aes.sage.py diff --git a/src/block_cipher/block_cipher_aes.c b/z_old/src/block_cipher/block_cipher_aes.c similarity index 100% rename from src/block_cipher/block_cipher_aes.c rename to z_old/src/block_cipher/block_cipher_aes.c diff --git a/src/block_cipher/block_cipher_aria.c b/z_old/src/block_cipher/block_cipher_aria.c similarity index 100% rename from src/block_cipher/block_cipher_aria.c rename to z_old/src/block_cipher/block_cipher_aria.c diff --git a/src/block_cipher/block_cipher_factory.c b/z_old/src/block_cipher/block_cipher_factory.c similarity index 100% rename from src/block_cipher/block_cipher_factory.c rename to z_old/src/block_cipher/block_cipher_factory.c diff --git a/src/block_cipher/block_cipher_lea.c b/z_old/src/block_cipher/block_cipher_lea.c similarity index 100% rename from src/block_cipher/block_cipher_lea.c rename to z_old/src/block_cipher/block_cipher_lea.c diff --git a/src/cryptomodule_core.c b/z_old/src/cryptomodule_core.c similarity index 100% rename from src/cryptomodule_core.c rename to z_old/src/cryptomodule_core.c diff --git a/src/cryptomodule_test.c b/z_old/src/cryptomodule_test.c similarity index 100% rename from src/cryptomodule_test.c rename to z_old/src/cryptomodule_test.c diff --git a/src/cryptomodule_utils.c b/z_old/src/cryptomodule_utils.c similarity index 100% rename from src/cryptomodule_utils.c rename to z_old/src/cryptomodule_utils.c diff --git a/z_old/src/main.c b/z_old/src/main.c new file mode 100644 index 0000000..6669bad --- /dev/null +++ b/z_old/src/main.c @@ -0,0 +1,236 @@ +/* File: src/main.c */ +#include "../include/api_cryptomodule.h" + +/* Enable core dumps and set signal handlers for debugging */ +#include +#include +#include +#include + +// #define BLOCK_CIPHER_TEST_FLAG 1 +#define MODE_OF_OPERATION_TEST_FLAG 1 +// #define PADDING_TEST_FLAG 1 + +int main(void) { + + // KAT_TEST_BLOCKCIPHER(BLOCK_CIPHER_AES128); + // KAT_TEST_BLOCKCIPHER(BLOCK_CIPHER_AES192); + // KAT_TEST_BLOCKCIPHER(BLOCK_CIPHER_AES256); + +#ifdef MODE_OF_OPERATION_TEST_FLAG + // 1) Prepare key and IV + uint8_t key[16] = { + 0x00,0x01,0x02,0x03, 0x04,0x05,0x06,0x07, + 0x08,0x09,0x0A,0x0B, 0x0C,0x0D,0x0E,0x0F + }; + uint8_t iv[16] = { 0 }; // for CBC/CTR/GCM + + printf(" Key (%u): ", 16); + for (size_t i = 0; i < sizeof(key)/sizeof(u8); i++) { + printf("(%ld)%02X:", i, key[i]); + } puts(""); + + // 2) Example plaintext > 1 block (48 bytes = 3 AES blocks) + // const char *plaintext = + // "The quick brown fox jumps over the lazy dog!!!"; + // size_t pt_len = strlen(plaintext); // 43 bytes + + size_t pt_len = 16; + size_t pt_max_len = 32; + + u8 *mode_pt = (u8*)malloc(pt_max_len); + if (!mode_pt) { + fprintf(stderr, "Memory allocation failed\n"); + return -1; + } + for (size_t i = 0; i < pt_len; i++) { + mode_pt[i] = (uint8_t)i*i; + } + + printf("[Fit-] Original message (%2zu): ", pt_len); + for (size_t i = 0; i < pt_len; i++) { + printf("(%ld)%02X:", i, mode_pt[i]); + } puts(""); + + printf("[Real] Original message (%2zu): ", pt_max_len); + for (size_t i = 0; i < pt_max_len; i++) { + printf("(%ld)%02X:", i, mode_pt[i]); + } puts(""); + + // For ECB/CBC with padding, ciphertext_len may grow by +block_size + uint8_t mode_ct[64] = {0}; + size_t mode_ct_len = pt_max_len; + + // 3) Set up BlockCipherContext for AES + + + // 4) Choose a mode: ECB or CBC (both defined in mode_api.h) + ModeOfOperationContext mode_ctx; + // BlockCipherContext cipher_ctx; + mode_ctx.mode_api = mode_factory("ECB"); + + mode_ctx.mode_api->mode_init( + &mode_ctx, BLOCK_CIPHER_AES128, key, sizeof(key)/sizeof(u8), NULL, 0, mode_pt, pt_len, BLOCK_CIPHER_ENCRYPTION); + // printf("Total length: %zu\n", mode_ctx.total_len); + + // size_t total_block_size = pkcs7_pad(pt, msg_len, BLOCK_SIZE); + + // printf(" Key: "); + // for (size_t i = 0; i < sizeof(key)/sizeof(u8); i++) { + // printf("%02X ", key[i]); + // } + // puts(""); + // printf(" IV: "); + // for (size_t i = 0; i < sizeof(iv)/sizeof(u8); i++) { + // printf("%02X ", iv[i]); + // } + // puts(""); + printf(" Padded Plaintext: (%2zu): ", mode_ctx.total_len); + for (size_t i = 0; i < mode_ctx.total_len; i++) { + printf("(%ld)%02X:", i, mode_pt[i]); + } puts(""); + + mode_ctx.mode_api->mode_update( + &mode_ctx, mode_pt, mode_ct, mode_ctx.total_len, BLOCK_CIPHER_ENCRYPTION); + + printf(" (Update) Ciphertext: (%2zu): ", mode_ctx.total_len); + for (size_t i = 0; i < mode_ctx.total_len; i++) { + printf("(%ld)%02X:", i, mode_ct[i]); + } puts(""); + + + // mode_ctx.api->mode_update(&mode_ctx, pt, ciphertext, pt_max_len, ciphertext_len, BLOCK_CIPHER_ENCRYPTION); + // mode_ctx.api->mode_dispose(&mode_ctx); + // cipher_ctx.cipher_api->cipher_dispose(&cipher_ctx); + // printf(" Ciphertext: (%2zu): ", ciphertext_len); + // for (size_t i = 0; i < ciphertext_len; i++) { + // printf("%02X ", ciphertext[i]); + // } + // puts(""); + + free(mode_pt); + +#endif + +#ifdef PADDING_TEST_FLAG + uint8_t buf[128]; + const char *msg = "HELLO WORLD"; + size_t msg_len = strlen(msg); + memcpy(buf, msg, msg_len); + + // size_t msg_len = 16; + // for (size_t i = 0; i < msg_len; i++) { + // buf[i] = (uint8_t)i; + // } + + printf("Original message (%zu): ", msg_len); + for (size_t i = 0; i < msg_len; i++) { + printf("(%ld)%02X:", i, buf[i]); + } puts(""); + + // PKCS#7 + printf("\n----------------------------------- PKCS#7 -----------------------------------\n"); + size_t tot = pkcs7_pad(buf, msg_len, BLOCK_SIZE); + printf("Padded message (%zu): ", tot); + for (size_t i = 0; i < tot; i++) { + printf("(%ld)%02X:", i, buf[i]); + } puts(""); + size_t unp = pkcs7_unpad(buf, tot, BLOCK_SIZE); + printf("Unpadded message (%zu): ", unp); + for (size_t i = 0; i < unp; i++) { + printf("(%ld)%02X:", i, buf[i]); + } puts(""); + + // ANSI 9.23 + printf("\n----------------------------------- ANSI 9.23 -----------------------------------\n"); + // memcpy(buf, msg, msg_len); + tot = ansi923_pad(buf, msg_len, BLOCK_SIZE); + printf("Padded message (%zu): ", tot); + for (size_t i = 0; i < tot; i++) { + printf("(%ld)%02X:", i, buf[i]); + } puts(""); + unp = ansi923_unpad(buf, tot, BLOCK_SIZE); + printf("Unpadded message (%zu): ", unp); + for (size_t i = 0; i < unp; i++) { + printf("(%ld)%02X:", i, buf[i]); + } puts(""); + + // ISO/IEC 7816-4 + printf("\n----------------------------------- ISO/IEC 7816-4 -----------------------------------\n"); + // memcpy(buf, msg, msg_len); + tot = iso7816_4_pad(buf, msg_len, BLOCK_SIZE); + printf("Padded message (%zu): ", tot); + for (size_t i = 0; i < tot; i++) { + printf("(%ld)%02X:", i, buf[i]); + } puts(""); + unp = iso7816_4_unpad(buf, tot, BLOCK_SIZE); + printf("Unpadded message (%zu): ", unp); + for (size_t i = 0; i < unp; i++) { + printf("(%ld)%02X:", i, buf[i]); + } puts(""); +#endif + +#ifdef BLOCK_CIPHER_TEST_FLAG + /* 1) Create a context and call init */ + BlockCipherContext cipher_ctx; + memset(&cipher_ctx, 0, sizeof(cipher_ctx)); + + #define key_len AES128_KEY_SIZE + + /* 2) Get the AES vtable. */ + // u8 key[key_len] = {0}; /* example all zero */ + // stringToByteArray("f8000000000000000000000000000000", key); + printf("Key : "); + for (int i = 0; i < key_len; i++) { + printf("%02X ", key[i]); + } + printf("\n"); + + /* 3) Encrypt or Decrypt a single 16-byte block. */ + u8 pt[16] = { 0x00, }; + // stringToByteArray("00000000000000000000000000000000", pt); + for (size_t i = 0; i < sizeof(pt)/sizeof(u8); i++) { + pt[i] = (u8)i*i; + } + u8 ct[16] = { 0x00, }; + u8 dt[16] = { 0x00, }; + + memset(&cipher_ctx, 0, sizeof(cipher_ctx)); + cipher_ctx.cipher_api = block_cipher_factory("AES"); + cipher_ctx.cipher_api->cipher_init(&cipher_ctx, key, key_len, AES_BLOCK_SIZE, BLOCK_CIPHER_ENCRYPTION); + cipher_ctx.cipher_api->cipher_process(&cipher_ctx, pt, ct, BLOCK_CIPHER_ENCRYPTION); + // ctx.api->dispose(&ctx); + cipher_ctx.cipher_api->cipher_init(&cipher_ctx, key, key_len, AES_BLOCK_SIZE, BLOCK_CIPHER_DECRYPTION); + cipher_ctx.cipher_api->cipher_process(&cipher_ctx, ct, dt, BLOCK_CIPHER_DECRYPTION); + cipher_ctx.cipher_api->cipher_dispose(&cipher_ctx); + + // -- ENCRYPTION -- + // memset(&enc_ctx, 0, sizeof(enc_ctx)); + // enc_ctx.api = block_cipher_factory("AES"); + // enc_ctx.api->init(&enc_ctx, key, AES128_KEY_SIZE, AES_BLOCK_SIZE, BLOCK_CIPHER_ENCRYPTION); + // enc_ctx.api->process_block(&enc_ctx, plaintext, ciphertext, BLOCK_CIPHER_ENCRYPTION); + // enc_ctx.api->dispose(&enc_ctx); + + // -- DECRYPTION -- + // memset(&dec_ctx, 0, sizeof(dec_ctx)); + // dec_ctx.api = block_cipher_factory("AES"); + // dec_ctx.api->init(&dec_ctx, key, 16, 16, BLOCK_CIPHER_DECRYPTION); + // dec_ctx.api->process_block(&dec_ctx, ciphertext, decrypted, BLOCK_CIPHER_DECRYPTION); + // dec_ctx.api->dispose(&dec_ctx); + + printf("Original : "); + for (int i = 0; i < 16; i++) { + printf("%02X ", pt[i]); + } + printf("\nEncrypted : "); + for (int i = 0; i < 16; i++) { + printf("%02X ", ct[i]); + } + printf("\nDecrypted : "); + for (int i = 0; i < 16; i++) { + printf("%02X ", dt[i]); + } + puts(""); +#endif + return 0; +} \ No newline at end of file diff --git a/src/mode/mode_cbc.c b/z_old/src/mode/mode_cbc.c similarity index 100% rename from src/mode/mode_cbc.c rename to z_old/src/mode/mode_cbc.c diff --git a/src/mode/mode_ctr.c b/z_old/src/mode/mode_ctr.c similarity index 100% rename from src/mode/mode_ctr.c rename to z_old/src/mode/mode_ctr.c diff --git a/src/mode/mode_ecb.c b/z_old/src/mode/mode_ecb.c similarity index 100% rename from src/mode/mode_ecb.c rename to z_old/src/mode/mode_ecb.c diff --git a/src/mode/mode_factory.c b/z_old/src/mode/mode_factory.c similarity index 100% rename from src/mode/mode_factory.c rename to z_old/src/mode/mode_factory.c diff --git a/src/mode/mode_gcm.c b/z_old/src/mode/mode_gcm.c similarity index 100% rename from src/mode/mode_gcm.c rename to z_old/src/mode/mode_gcm.c diff --git a/src/mode/padding.c b/z_old/src/mode/padding.c similarity index 100% rename from src/mode/padding.c rename to z_old/src/mode/padding.c diff --git a/src/sha/sha2.c b/z_old/src/sha/sha2.c similarity index 100% rename from src/sha/sha2.c rename to z_old/src/sha/sha2.c diff --git a/src/sha/sha2_core.c b/z_old/src/sha/sha2_core.c similarity index 100% rename from src/sha/sha2_core.c rename to z_old/src/sha/sha2_core.c