diff --git a/Makefile b/Makefile index 2f56cc0..cc02a1d 100644 --- a/Makefile +++ b/Makefile @@ -7,6 +7,7 @@ OBJ := sha all: aes.o sha.o $(CC) $(CFLAGS) -o $(OBJ) $^ $(LDFLAGS) + $(STRIP) $(OBJ) .c.o: $(CC) $(CFLAGS) -c $< diff --git a/README.md b/README.md index a29dc17..8778fed 100644 --- a/README.md +++ b/README.md @@ -18,13 +18,15 @@ ## Help Information - SHA + SHA Shell Strict AES 128 bit encryption tool - AUTHOR: AIXIAO@AIXIAO.ME + Author: AIXIAO@AIXIAO.ME Usage: - -k : key - -f : Script file + sha [-kfh?] + -k : Key + -f : Script File + -h -? : Print Help 静态链接: diff --git a/aes.c b/aes.c index bbdd886..3b9e09d 100644 --- a/aes.c +++ b/aes.c @@ -2,7 +2,6 @@ #include "aes.h" - #define Nb 4 #if defined(AES256) && (AES256 == 1) @@ -174,7 +173,7 @@ static void ShiftRows(state_t * state) (*state)[1][1] = (*state)[2][1]; (*state)[2][1] = (*state)[3][1]; (*state)[3][1] = temp; - + temp = (*state)[0][2]; (*state)[0][2] = (*state)[2][2]; (*state)[2][2] = temp; diff --git a/aes.h b/aes.h index d905832..0180192 100644 --- a/aes.h +++ b/aes.h @@ -1,6 +1,11 @@ #ifndef _AES_H_ #define _AES_H_ +#include +#include +#include +#include + #include #include diff --git a/sha.c b/sha.c index 8969968..6779bd1 100644 --- a/sha.c +++ b/sha.c @@ -16,11 +16,9 @@ #define BUFFER_SIZE 270 - char *buff; long file_size; - static void hex2str(uint8_t * input, uint16_t input_len, char *output) { char *hexEncode = "0123456789ABCDEF"; @@ -44,7 +42,7 @@ int open_file(char *filename) fseek(file, 0, SEEK_END); file_size = ftell(file); buff = (char *)malloc(file_size + 1); - if (buff == NULL) + if (!buff) perror("out of memory."); rewind(file); if (fread(buff, file_size, 1, file) < 1) { @@ -57,675 +55,671 @@ int open_file(char *filename) } char *source_c[] = { -"#include ", -"#include ", -"#include ", -"#include ", -"#include ", -"#include ", -"#include ", -"#define CBC 1", -"#define CTR 1", -"#define ECB 1", + "#include ", + "#include ", + "#include ", + "#include ", + "#include ", + "#include ", + "#include ", + "#define CBC 1", + "#define CTR 1", + "#define ECB 1", -"#ifndef _AES_H_", -"#define _AES_H_", -"", -"#include ", -"#include ", -"", -"#ifndef CBC", -"#define CBC 1", -"#endif", -"", -"#ifndef ECB", -"#define ECB 1", -"#endif", -"", -"#ifndef CTR", -"#define CTR 1", -"#endif", -"", -"#define AES128 1", -"//#define AES192 1", -"//#define AES256 1", -"", -"#define AES_BLOCKLEN 16 // Block length in bytes - AES is 128b block only", -"", -"#if defined(AES256) && (AES256 == 1)", -"#define AES_KEYLEN 32", -"#define AES_keyExpSize 240", -"#elif defined(AES192) && (AES192 == 1)", -"#define AES_KEYLEN 24", -"#define AES_keyExpSize 208", -"#else", -"#define AES_KEYLEN 16 // Key length in bytes", -"#define AES_keyExpSize 176", -"#endif", -"", -"struct AES_ctx {", -" uint8_t RoundKey[AES_keyExpSize];", -"#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))", -" uint8_t Iv[AES_BLOCKLEN];", -"#endif", -"};", -"", -"void AES_init_ctx(struct AES_ctx *ctx, const uint8_t * key);", -"#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))", -"void AES_init_ctx_iv(struct AES_ctx *ctx, const uint8_t * key, const uint8_t * iv);", -"void AES_ctx_set_iv(struct AES_ctx *ctx, const uint8_t * iv);", -"#endif", -"", -"#if defined(ECB) && (ECB == 1)", -"void AES_ECB_encrypt(const struct AES_ctx *ctx, uint8_t * buf);", -"void AES_ECB_decrypt(const struct AES_ctx *ctx, uint8_t * buf);", -"", -"#endif // #if defined(ECB) && (ECB == !)", -"", -"#if defined(CBC) && (CBC == 1)", -"void AES_CBC_encrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);", -"void AES_CBC_decrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);", -"", -"#endif // #if defined(CBC) && (CBC == 1)", -"", -"#if defined(CTR) && (CTR == 1)", -"", -"void AES_CTR_xcrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);", -"", -"#endif // #if defined(CTR) && (CTR == 1)", -"", -"#endif // _AES_H_", -"", -"", -"#define Nb 4", -"", -"#if defined(AES256) && (AES256 == 1)", -"#define Nk 8", -"#define Nr 14", -"#elif defined(AES192) && (AES192 == 1)", -"#define Nk 6", -"#define Nr 12", -"#else", -"#define Nk 4 // The number of 32 bit words in a key.", -"#define Nr 10 // The number of rounds in AES Cipher.", -"#endif", -"", -"#ifndef MULTIPLY_AS_A_FUNCTION", -"#define MULTIPLY_AS_A_FUNCTION 0", -"#endif", -"", -"typedef uint8_t state_t[4][4];", -"", -"static const uint8_t sbox[256] = {", -" 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,", -" 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,", -" 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,", -" 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,", -" 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,", -" 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,", -" 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,", -" 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,", -" 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,", -" 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,", -" 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,", -" 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,", -" 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,", -" 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,", -" 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,", -" 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16", -"};", -"", -"#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", -"static const uint8_t rsbox[256] = {", -" 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,", -" 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,", -" 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,", -" 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,", -" 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,", -" 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,", -" 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,", -" 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,", -" 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,", -" 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,", -" 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,", -" 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,", -" 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,", -" 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,", -" 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,", -" 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d", -"};", -"#endif", -"", -"static const uint8_t Rcon[11] = {", -" 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36", -"};", -"", -"#define getSBoxValue(num) (sbox[(num)])", -"", -"static void KeyExpansion(uint8_t * RoundKey, const uint8_t * Key)", -"{", -" unsigned i, j, k;", -" uint8_t tempa[4]; // Used for the column/row operations", -"", -" for (i = 0; i < Nk; ++i) {", -" RoundKey[(i * 4) + 0] = Key[(i * 4) + 0];", -" RoundKey[(i * 4) + 1] = Key[(i * 4) + 1];", -" RoundKey[(i * 4) + 2] = Key[(i * 4) + 2];", -" RoundKey[(i * 4) + 3] = Key[(i * 4) + 3];", -" }", -"", -" for (i = Nk; i < Nb * (Nr + 1); ++i) {", -" {", -" k = (i - 1) * 4;", -" tempa[0] = RoundKey[k + 0];", -" tempa[1] = RoundKey[k + 1];", -" tempa[2] = RoundKey[k + 2];", -" tempa[3] = RoundKey[k + 3];", -"", -" }", -"", -" if (i % Nk == 0) {", -" {", -" const uint8_t u8tmp = tempa[0];", -" tempa[0] = tempa[1];", -" tempa[1] = tempa[2];", -" tempa[2] = tempa[3];", -" tempa[3] = u8tmp;", -" }", -"", -" {", -" tempa[0] = getSBoxValue(tempa[0]);", -" tempa[1] = getSBoxValue(tempa[1]);", -" tempa[2] = getSBoxValue(tempa[2]);", -" tempa[3] = getSBoxValue(tempa[3]);", -" }", -"", -" tempa[0] = tempa[0] ^ Rcon[i / Nk];", -" }", -"#if defined(AES256) && (AES256 == 1)", -" if (i % Nk == 4) {", -" {", -" tempa[0] = getSBoxValue(tempa[0]);", -" tempa[1] = getSBoxValue(tempa[1]);", -" tempa[2] = getSBoxValue(tempa[2]);", -" tempa[3] = getSBoxValue(tempa[3]);", -" }", -" }", -"#endif", -" j = i * 4;", -" k = (i - Nk) * 4;", -" RoundKey[j + 0] = RoundKey[k + 0] ^ tempa[0];", -" RoundKey[j + 1] = RoundKey[k + 1] ^ tempa[1];", -" RoundKey[j + 2] = RoundKey[k + 2] ^ tempa[2];", -" RoundKey[j + 3] = RoundKey[k + 3] ^ tempa[3];", -" }", -"}", -"", -"void AES_init_ctx(struct AES_ctx *ctx, const uint8_t * key)", -"{", -" KeyExpansion(ctx->RoundKey, key);", -"}", -"", -"#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))", -"void AES_init_ctx_iv(struct AES_ctx *ctx, const uint8_t * key, const uint8_t * iv)", -"{", -" KeyExpansion(ctx->RoundKey, key);", -" memcpy(ctx->Iv, iv, AES_BLOCKLEN);", -"}", -"", -"void AES_ctx_set_iv(struct AES_ctx *ctx, const uint8_t * iv)", -"{", -" memcpy(ctx->Iv, iv, AES_BLOCKLEN);", -"}", -"#endif", -"", -"static void AddRoundKey(uint8_t round, state_t * state, const uint8_t * RoundKey)", -"{", -" uint8_t i, j;", -" for (i = 0; i < 4; ++i) {", -" for (j = 0; j < 4; ++j) {", -" (*state)[i][j] ^= RoundKey[(round * Nb * 4) + (i * Nb) + j];", -" }", -" }", -"}", -"", -"static void SubBytes(state_t * state)", -"{", -" uint8_t i, j;", -" for (i = 0; i < 4; ++i) {", -" for (j = 0; j < 4; ++j) {", -" (*state)[j][i] = getSBoxValue((*state)[j][i]);", -" }", -" }", -"}", -"", -"static void ShiftRows(state_t * state)", -"{", -" uint8_t temp;", -"", -" temp = (*state)[0][1];", -" (*state)[0][1] = (*state)[1][1];", -" (*state)[1][1] = (*state)[2][1];", -" (*state)[2][1] = (*state)[3][1];", -" (*state)[3][1] = temp;", -" ", -" temp = (*state)[0][2];", -" (*state)[0][2] = (*state)[2][2];", -" (*state)[2][2] = temp;", -"", -" temp = (*state)[1][2];", -" (*state)[1][2] = (*state)[3][2];", -" (*state)[3][2] = temp;", -"", -" temp = (*state)[0][3];", -" (*state)[0][3] = (*state)[3][3];", -" (*state)[3][3] = (*state)[2][3];", -" (*state)[2][3] = (*state)[1][3];", -" (*state)[1][3] = temp;", -"}", -"", -"static uint8_t xtime(uint8_t x)", -"{", -" return ((x << 1) ^ (((x >> 7) & 1) * 0x1b));", -"}", -"", -"static void MixColumns(state_t * state)", -"{", -" uint8_t i;", -" uint8_t Tmp, Tm, t;", -" for (i = 0; i < 4; ++i) {", -" t = (*state)[i][0];", -" Tmp = (*state)[i][0] ^ (*state)[i][1] ^ (*state)[i][2] ^ (*state)[i][3];", -" Tm = (*state)[i][0] ^ (*state)[i][1];", -" Tm = xtime(Tm);", -" (*state)[i][0] ^= Tm ^ Tmp;", -" Tm = (*state)[i][1] ^ (*state)[i][2];", -" Tm = xtime(Tm);", -" (*state)[i][1] ^= Tm ^ Tmp;", -" Tm = (*state)[i][2] ^ (*state)[i][3];", -" Tm = xtime(Tm);", -" (*state)[i][2] ^= Tm ^ Tmp;", -" Tm = (*state)[i][3] ^ t;", -" Tm = xtime(Tm);", -" (*state)[i][3] ^= Tm ^ Tmp;", -" }", -"}", -"", -"#if MULTIPLY_AS_A_FUNCTION", -"static uint8_t Multiply(uint8_t x, uint8_t y)", -"{", -" return (((y & 1) * x) ^ ((y >> 1 & 1) * xtime(x)) ^ ((y >> 2 & 1) * xtime(xtime(x))) ^ ((y >> 3 & 1) * xtime(xtime(xtime(x)))) ^ ((y >> 4 & 1) * xtime(xtime(xtime(xtime(x)))))); /* this last call to xtime() can be omitted */", -"}", -"#else", -"#define Multiply(x, y) \\", -" ( ((y & 1) * x) ^ \\", -" ((y>>1 & 1) * xtime(x)) ^ \\", -" ((y>>2 & 1) * xtime(xtime(x))) ^ \\", -" ((y>>3 & 1) * xtime(xtime(xtime(x)))) ^ \\", -" ((y>>4 & 1) * xtime(xtime(xtime(xtime(x)))))) \\", -"", -"#endif", -"", -"#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", -"", -"#define getSBoxInvert(num) (rsbox[(num)])", -"", -"static void InvMixColumns(state_t * state)", -"{", -" int i;", -" uint8_t a, b, c, d;", -" for (i = 0; i < 4; ++i) {", -" a = (*state)[i][0];", -" b = (*state)[i][1];", -" c = (*state)[i][2];", -" d = (*state)[i][3];", -"", -" (*state)[i][0] = Multiply(a, 0x0e) ^ Multiply(b, 0x0b) ^ Multiply(c, 0x0d) ^ Multiply(d, 0x09);", -" (*state)[i][1] = Multiply(a, 0x09) ^ Multiply(b, 0x0e) ^ Multiply(c, 0x0b) ^ Multiply(d, 0x0d);", -" (*state)[i][2] = Multiply(a, 0x0d) ^ Multiply(b, 0x09) ^ Multiply(c, 0x0e) ^ Multiply(d, 0x0b);", -" (*state)[i][3] = Multiply(a, 0x0b) ^ Multiply(b, 0x0d) ^ Multiply(c, 0x09) ^ Multiply(d, 0x0e);", -" }", -"}", -"", -"static void InvSubBytes(state_t * state)", -"{", -" uint8_t i, j;", -" for (i = 0; i < 4; ++i) {", -" for (j = 0; j < 4; ++j) {", -" (*state)[j][i] = getSBoxInvert((*state)[j][i]);", -" }", -" }", -"}", -"", -"static void InvShiftRows(state_t * state)", -"{", -" uint8_t temp;", -"", -" temp = (*state)[3][1];", -" (*state)[3][1] = (*state)[2][1];", -" (*state)[2][1] = (*state)[1][1];", -" (*state)[1][1] = (*state)[0][1];", -" (*state)[0][1] = temp;", -"", -" temp = (*state)[0][2];", -" (*state)[0][2] = (*state)[2][2];", -" (*state)[2][2] = temp;", -"", -" temp = (*state)[1][2];", -" (*state)[1][2] = (*state)[3][2];", -" (*state)[3][2] = temp;", -"", -" temp = (*state)[0][3];", -" (*state)[0][3] = (*state)[1][3];", -" (*state)[1][3] = (*state)[2][3];", -" (*state)[2][3] = (*state)[3][3];", -" (*state)[3][3] = temp;", -"}", -"#endif // #if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", -"", -"static void Cipher(state_t * state, const uint8_t * RoundKey)", -"{", -" uint8_t round = 0;", -"", -" AddRoundKey(0, state, RoundKey);", -"", -" for (round = 1;; ++round) {", -" SubBytes(state);", -" ShiftRows(state);", -" if (round == Nr) {", -" break;", -" }", -" MixColumns(state);", -" AddRoundKey(round, state, RoundKey);", -" }", -" AddRoundKey(Nr, state, RoundKey);", -"}", -"", -"#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", -"static void InvCipher(state_t * state, const uint8_t * RoundKey)", -"{", -" uint8_t round = 0;", -"", -" AddRoundKey(Nr, state, RoundKey);", -"", -" for (round = (Nr - 1);; --round) {", -" InvShiftRows(state);", -" InvSubBytes(state);", -" AddRoundKey(round, state, RoundKey);", -" if (round == 0) {", -" break;", -" }", -" InvMixColumns(state);", -" }", -"", -"}", -"#endif // #if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", -"", -"#if defined(ECB) && (ECB == 1)", -"", -"void AES_ECB_encrypt(const struct AES_ctx *ctx, uint8_t * buf)", -"{", -" Cipher((state_t *) buf, ctx->RoundKey);", -"}", -"", -"void AES_ECB_decrypt(const struct AES_ctx *ctx, uint8_t * buf)", -"{", -" // The next function call decrypts the PlainText with the Key using AES algorithm.", -" InvCipher((state_t *) buf, ctx->RoundKey);", -"}", -"", -"#endif // #if defined(ECB) && (ECB == 1)", -"", -"#if defined(CBC) && (CBC == 1)", -"", -"static void XorWithIv(uint8_t * buf, const uint8_t * Iv)", -"{", -" uint8_t i;", -" for (i = 0; i < AES_BLOCKLEN; ++i) // The block in AES is always 128bit no matter the key size", -" {", -" buf[i] ^= Iv[i];", -" }", -"}", -"", -"void AES_CBC_encrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length)", -"{", -" size_t i;", -" uint8_t *Iv = ctx->Iv;", -" for (i = 0; i < length; i += AES_BLOCKLEN) {", -" XorWithIv(buf, Iv);", -" Cipher((state_t *) buf, ctx->RoundKey);", -" Iv = buf;", -" buf += AES_BLOCKLEN;", -" }", -" /* store Iv in ctx for next call */", -" memcpy(ctx->Iv, Iv, AES_BLOCKLEN);", -"}", -"", -"void AES_CBC_decrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length)", -"{", -" size_t i;", -" uint8_t storeNextIv[AES_BLOCKLEN];", -" for (i = 0; i < length; i += AES_BLOCKLEN) {", -" memcpy(storeNextIv, buf, AES_BLOCKLEN);", -" InvCipher((state_t *) buf, ctx->RoundKey);", -" XorWithIv(buf, ctx->Iv);", -" memcpy(ctx->Iv, storeNextIv, AES_BLOCKLEN);", -" buf += AES_BLOCKLEN;", -" }", -"", -"}", -"", -"#endif // #if defined(CBC) && (CBC == 1)", -"", -"#if defined(CTR) && (CTR == 1)", -"", -"void AES_CTR_xcrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length)", -"{", -" uint8_t buffer[AES_BLOCKLEN];", -"", -" size_t i;", -" int bi;", -" for (i = 0, bi = AES_BLOCKLEN; i < length; ++i, ++bi) {", -" if (bi == AES_BLOCKLEN) { /* we need to regen xor compliment in buffer */", -" memcpy(buffer, ctx->Iv, AES_BLOCKLEN);", -" Cipher((state_t *) buffer, ctx->RoundKey);", -"", -" /* Increment Iv and handle overflow */", -" for (bi = (AES_BLOCKLEN - 1); bi >= 0; --bi) {", -" /* inc will overflow */", -" if (ctx->Iv[bi] == 255) {", -" ctx->Iv[bi] = 0;", -" continue;", -" }", -" ctx->Iv[bi] += 1;", -" break;", -" }", -" bi = 0;", -" }", -"", -" buf[i] = (buf[i] ^ buffer[bi]);", -" }", -"}", -"", -"#endif // #if defined(CTR) && (CTR == 1)", -"", - "static int oneHexChar2Hex(char hex)", + "#ifndef _AES_H_", + "#define _AES_H_", + "", + "#include ", + "#include ", + "", + "#ifndef CBC", + "#define CBC 1", + "#endif", + "", + "#ifndef ECB", + "#define ECB 1", + "#endif", + "", + "#ifndef CTR", + "#define CTR 1", + "#endif", + "", + "#define AES128 1", + "//#define AES192 1", + "//#define AES256 1", + "", + "#define AES_BLOCKLEN 16 // Block length in bytes - AES is 128b block only", + "", + "#if defined(AES256) && (AES256 == 1)", + "#define AES_KEYLEN 32", + "#define AES_keyExpSize 240", + "#elif defined(AES192) && (AES192 == 1)", + "#define AES_KEYLEN 24", + "#define AES_keyExpSize 208", + "#else", + "#define AES_KEYLEN 16 // Key length in bytes", + "#define AES_keyExpSize 176", + "#endif", + "", + "struct AES_ctx {", + " uint8_t RoundKey[AES_keyExpSize];", + "#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))", + " uint8_t Iv[AES_BLOCKLEN];", + "#endif", + "};", + "", + "void AES_init_ctx(struct AES_ctx *ctx, const uint8_t * key);", + "#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))", + "void AES_init_ctx_iv(struct AES_ctx *ctx, const uint8_t * key, const uint8_t * iv);", + "void AES_ctx_set_iv(struct AES_ctx *ctx, const uint8_t * iv);", + "#endif", + "", + "#if defined(ECB) && (ECB == 1)", + "void AES_ECB_encrypt(const struct AES_ctx *ctx, uint8_t * buf);", + "void AES_ECB_decrypt(const struct AES_ctx *ctx, uint8_t * buf);", + "", + "#endif // #if defined(ECB) && (ECB == !)", + "", + "#if defined(CBC) && (CBC == 1)", + "void AES_CBC_encrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);", + "void AES_CBC_decrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);", + "", + "#endif // #if defined(CBC) && (CBC == 1)", + "", + "#if defined(CTR) && (CTR == 1)", + "", + "void AES_CTR_xcrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);", + "", + "#endif // #if defined(CTR) && (CTR == 1)", + "", + "#endif // _AES_H_", + "", + "", + "#define Nb 4", + "", + "#if defined(AES256) && (AES256 == 1)", + "#define Nk 8", + "#define Nr 14", + "#elif defined(AES192) && (AES192 == 1)", + "#define Nk 6", + "#define Nr 12", + "#else", + "#define Nk 4 // The number of 32 bit words in a key.", + "#define Nr 10 // The number of rounds in AES Cipher.", + "#endif", + "", + "#ifndef MULTIPLY_AS_A_FUNCTION", + "#define MULTIPLY_AS_A_FUNCTION 0", + "#endif", + "", + "typedef uint8_t state_t[4][4];", + "", + "static const uint8_t sbox[256] = {", + " 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,", + " 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,", + " 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,", + " 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,", + " 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,", + " 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,", + " 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,", + " 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,", + " 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,", + " 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,", + " 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,", + " 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,", + " 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,", + " 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,", + " 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,", + " 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16", + "};", + "", + "#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", + "static const uint8_t rsbox[256] = {", + " 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,", + " 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,", + " 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,", + " 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,", + " 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,", + " 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,", + " 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,", + " 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,", + " 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,", + " 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,", + " 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,", + " 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,", + " 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,", + " 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,", + " 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,", + " 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d", + "};", + "#endif", + "", + "static const uint8_t Rcon[11] = {", + " 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36", + "};", + "", + "#define getSBoxValue(num) (sbox[(num)])", + "", + "static void KeyExpansion(uint8_t * RoundKey, const uint8_t * Key)", "{", + " unsigned i, j, k;", + " uint8_t tempa[4]; // Used for the column/row operations", + "", + " for (i = 0; i < Nk; ++i) {", + " RoundKey[(i * 4) + 0] = Key[(i * 4) + 0];", + " RoundKey[(i * 4) + 1] = Key[(i * 4) + 1];", + " RoundKey[(i * 4) + 2] = Key[(i * 4) + 2];", + " RoundKey[(i * 4) + 3] = Key[(i * 4) + 3];", + " }", + "", + " for (i = Nk; i < Nb * (Nr + 1); ++i) {", + " {", + " k = (i - 1) * 4;", + " tempa[0] = RoundKey[k + 0];", + " tempa[1] = RoundKey[k + 1];", + " tempa[2] = RoundKey[k + 2];", + " tempa[3] = RoundKey[k + 3];", + "", + " }", + "", + " if (i % Nk == 0) {", + " {", + " const uint8_t u8tmp = tempa[0];", + " tempa[0] = tempa[1];", + " tempa[1] = tempa[2];", + " tempa[2] = tempa[3];", + " tempa[3] = u8tmp;", + " }", + "", + " {", + " tempa[0] = getSBoxValue(tempa[0]);", + " tempa[1] = getSBoxValue(tempa[1]);", + " tempa[2] = getSBoxValue(tempa[2]);", + " tempa[3] = getSBoxValue(tempa[3]);", + " }", + "", + " tempa[0] = tempa[0] ^ Rcon[i / Nk];", + " }", + "#if defined(AES256) && (AES256 == 1)", + " if (i % Nk == 4) {", + " {", + " tempa[0] = getSBoxValue(tempa[0]);", + " tempa[1] = getSBoxValue(tempa[1]);", + " tempa[2] = getSBoxValue(tempa[2]);", + " tempa[3] = getSBoxValue(tempa[3]);", + " }", + " }", + "#endif", + " j = i * 4;", + " k = (i - Nk) * 4;", + " RoundKey[j + 0] = RoundKey[k + 0] ^ tempa[0];", + " RoundKey[j + 1] = RoundKey[k + 1] ^ tempa[1];", + " RoundKey[j + 2] = RoundKey[k + 2] ^ tempa[2];", + " RoundKey[j + 3] = RoundKey[k + 3] ^ tempa[3];", + " }", + "}", + "", + "void AES_init_ctx(struct AES_ctx *ctx, const uint8_t * key)", + "{", + " KeyExpansion(ctx->RoundKey, key);", + "}", + "", + "#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))", + "void AES_init_ctx_iv(struct AES_ctx *ctx, const uint8_t * key, const uint8_t * iv)", + "{", + " KeyExpansion(ctx->RoundKey, key);", + " memcpy(ctx->Iv, iv, AES_BLOCKLEN);", + "}", + "", + "void AES_ctx_set_iv(struct AES_ctx *ctx, const uint8_t * iv)", + "{", + " memcpy(ctx->Iv, iv, AES_BLOCKLEN);", + "}", + "#endif", + "", + "static void AddRoundKey(uint8_t round, state_t * state, const uint8_t * RoundKey)", + "{", + " uint8_t i, j;", + " for (i = 0; i < 4; ++i) {", + " for (j = 0; j < 4; ++j) {", + " (*state)[i][j] ^= RoundKey[(round * Nb * 4) + (i * Nb) + j];", + " }", + " }", + "}", + "", + "static void SubBytes(state_t * state)", + "{", + " uint8_t i, j;", + " for (i = 0; i < 4; ++i) {", + " for (j = 0; j < 4; ++j) {", + " (*state)[j][i] = getSBoxValue((*state)[j][i]);", + " }", + " }", + "}", + "", + "static void ShiftRows(state_t * state)", + "{", + " uint8_t temp;", + "", + " temp = (*state)[0][1];", + " (*state)[0][1] = (*state)[1][1];", + " (*state)[1][1] = (*state)[2][1];", + " (*state)[2][1] = (*state)[3][1];", + " (*state)[3][1] = temp;", + " ", + " temp = (*state)[0][2];", + " (*state)[0][2] = (*state)[2][2];", + " (*state)[2][2] = temp;", + "", + " temp = (*state)[1][2];", + " (*state)[1][2] = (*state)[3][2];", + " (*state)[3][2] = temp;", + "", + " temp = (*state)[0][3];", + " (*state)[0][3] = (*state)[3][3];", + " (*state)[3][3] = (*state)[2][3];", + " (*state)[2][3] = (*state)[1][3];", + " (*state)[1][3] = temp;", + "}", + "", + "static uint8_t xtime(uint8_t x)", + "{", + " return ((x << 1) ^ (((x >> 7) & 1) * 0x1b));", + "}", + "", + "static void MixColumns(state_t * state)", + "{", + " uint8_t i;", + " uint8_t Tmp, Tm, t;", + " for (i = 0; i < 4; ++i) {", + " t = (*state)[i][0];", + " Tmp = (*state)[i][0] ^ (*state)[i][1] ^ (*state)[i][2] ^ (*state)[i][3];", + " Tm = (*state)[i][0] ^ (*state)[i][1];", + " Tm = xtime(Tm);", + " (*state)[i][0] ^= Tm ^ Tmp;", + " Tm = (*state)[i][1] ^ (*state)[i][2];", + " Tm = xtime(Tm);", + " (*state)[i][1] ^= Tm ^ Tmp;", + " Tm = (*state)[i][2] ^ (*state)[i][3];", + " Tm = xtime(Tm);", + " (*state)[i][2] ^= Tm ^ Tmp;", + " Tm = (*state)[i][3] ^ t;", + " Tm = xtime(Tm);", + " (*state)[i][3] ^= Tm ^ Tmp;", + " }", + "}", + "", + "#if MULTIPLY_AS_A_FUNCTION", + "static uint8_t Multiply(uint8_t x, uint8_t y)", + "{", + " return (((y & 1) * x) ^ ((y >> 1 & 1) * xtime(x)) ^ ((y >> 2 & 1) * xtime(xtime(x))) ^ ((y >> 3 & 1) * xtime(xtime(xtime(x)))) ^ ((y >> 4 & 1) * xtime(xtime(xtime(xtime(x)))))); /* this last call to xtime() can be omitted */", + "}", + "#else", + "#define Multiply(x, y) \\", + " ( ((y & 1) * x) ^ \\", + " ((y>>1 & 1) * xtime(x)) ^ \\", + " ((y>>2 & 1) * xtime(xtime(x))) ^ \\", + " ((y>>3 & 1) * xtime(xtime(xtime(x)))) ^ \\", + " ((y>>4 & 1) * xtime(xtime(xtime(xtime(x)))))) \\", + "", + "#endif", + "", + "#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", + "", + "#define getSBoxInvert(num) (rsbox[(num)])", + "", + "static void InvMixColumns(state_t * state)", + "{", + " int i;", + " uint8_t a, b, c, d;", + " for (i = 0; i < 4; ++i) {", + " a = (*state)[i][0];", + " b = (*state)[i][1];", + " c = (*state)[i][2];", + " d = (*state)[i][3];", + "", + " (*state)[i][0] = Multiply(a, 0x0e) ^ Multiply(b, 0x0b) ^ Multiply(c, 0x0d) ^ Multiply(d, 0x09);", + " (*state)[i][1] = Multiply(a, 0x09) ^ Multiply(b, 0x0e) ^ Multiply(c, 0x0b) ^ Multiply(d, 0x0d);", + " (*state)[i][2] = Multiply(a, 0x0d) ^ Multiply(b, 0x09) ^ Multiply(c, 0x0e) ^ Multiply(d, 0x0b);", + " (*state)[i][3] = Multiply(a, 0x0b) ^ Multiply(b, 0x0d) ^ Multiply(c, 0x09) ^ Multiply(d, 0x0e);", + " }", + "}", + "", + "static void InvSubBytes(state_t * state)", + "{", + " uint8_t i, j;", + " for (i = 0; i < 4; ++i) {", + " for (j = 0; j < 4; ++j) {", + " (*state)[j][i] = getSBoxInvert((*state)[j][i]);", + " }", + " }", + "}", + "", + "static void InvShiftRows(state_t * state)", + "{", + " uint8_t temp;", + "", + " temp = (*state)[3][1];", + " (*state)[3][1] = (*state)[2][1];", + " (*state)[2][1] = (*state)[1][1];", + " (*state)[1][1] = (*state)[0][1];", + " (*state)[0][1] = temp;", + "", + " temp = (*state)[0][2];", + " (*state)[0][2] = (*state)[2][2];", + " (*state)[2][2] = temp;", + "", + " temp = (*state)[1][2];", + " (*state)[1][2] = (*state)[3][2];", + " (*state)[3][2] = temp;", + "", + " temp = (*state)[0][3];", + " (*state)[0][3] = (*state)[1][3];", + " (*state)[1][3] = (*state)[2][3];", + " (*state)[2][3] = (*state)[3][3];", + " (*state)[3][3] = temp;", + "}", + "#endif // #if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", + "", + "static void Cipher(state_t * state, const uint8_t * RoundKey)", + "{", + " uint8_t round = 0;", + "", + " AddRoundKey(0, state, RoundKey);", + "", + " for (round = 1;; ++round) {", + " SubBytes(state);", + " ShiftRows(state);", + " if (round == Nr) {", + " break;", + " }", + " MixColumns(state);", + " AddRoundKey(round, state, RoundKey);", + " }", + " AddRoundKey(Nr, state, RoundKey);", + "}", + "", + "#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", + "static void InvCipher(state_t * state, const uint8_t * RoundKey)", + "{", + " uint8_t round = 0;", + "", + " AddRoundKey(Nr, state, RoundKey);", + "", + " for (round = (Nr - 1);; --round) {", + " InvShiftRows(state);", + " InvSubBytes(state);", + " AddRoundKey(round, state, RoundKey);", + " if (round == 0) {", + " break;", + " }", + " InvMixColumns(state);", + " }", + "", + "}", + "#endif // #if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)", + "", + "#if defined(ECB) && (ECB == 1)", + "", + "void AES_ECB_encrypt(const struct AES_ctx *ctx, uint8_t * buf)", + "{", + " Cipher((state_t *) buf, ctx->RoundKey);", + "}", + "", + "void AES_ECB_decrypt(const struct AES_ctx *ctx, uint8_t * buf)", + "{", + " // The next function call decrypts the PlainText with the Key using AES algorithm.", + " InvCipher((state_t *) buf, ctx->RoundKey);", + "}", + "", + "#endif // #if defined(ECB) && (ECB == 1)", + "", + "#if defined(CBC) && (CBC == 1)", + "", + "static void XorWithIv(uint8_t * buf, const uint8_t * Iv)", + "{", + " uint8_t i;", + " for (i = 0; i < AES_BLOCKLEN; ++i) // The block in AES is always 128bit no matter the key size", + " {", + " buf[i] ^= Iv[i];", + " }", + "}", + "", + "void AES_CBC_encrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length)", + "{", + " size_t i;", + " uint8_t *Iv = ctx->Iv;", + " for (i = 0; i < length; i += AES_BLOCKLEN) {", + " XorWithIv(buf, Iv);", + " Cipher((state_t *) buf, ctx->RoundKey);", + " Iv = buf;", + " buf += AES_BLOCKLEN;", + " }", + " /* store Iv in ctx for next call */", + " memcpy(ctx->Iv, Iv, AES_BLOCKLEN);", + "}", + "", + "void AES_CBC_decrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length)", + "{", + " size_t i;", + " uint8_t storeNextIv[AES_BLOCKLEN];", + " for (i = 0; i < length; i += AES_BLOCKLEN) {", + " memcpy(storeNextIv, buf, AES_BLOCKLEN);", + " InvCipher((state_t *) buf, ctx->RoundKey);", + " XorWithIv(buf, ctx->Iv);", + " memcpy(ctx->Iv, storeNextIv, AES_BLOCKLEN);", + " buf += AES_BLOCKLEN;", + " }", + "", + "}", + "", + "#endif // #if defined(CBC) && (CBC == 1)", + "", + "#if defined(CTR) && (CTR == 1)", + "", + "void AES_CTR_xcrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length)", + "{", + " uint8_t buffer[AES_BLOCKLEN];", + "", + " size_t i;", + " int bi;", + " for (i = 0, bi = AES_BLOCKLEN; i < length; ++i, ++bi) {", + " if (bi == AES_BLOCKLEN) { /* we need to regen xor compliment in buffer */", + " memcpy(buffer, ctx->Iv, AES_BLOCKLEN);", + " Cipher((state_t *) buffer, ctx->RoundKey);", + "", + " /* Increment Iv and handle overflow */", + " for (bi = (AES_BLOCKLEN - 1); bi >= 0; --bi) {", + " /* inc will overflow */", + " if (ctx->Iv[bi] == 255) {", + " ctx->Iv[bi] = 0;", + " continue;", + " }", + " ctx->Iv[bi] += 1;", + " break;", + " }", + " bi = 0;", + " }", + "", + " buf[i] = (buf[i] ^ buffer[bi]);", + " }", + "}", + "", + "#endif // #if defined(CTR) && (CTR == 1)", + "", + + "static int oneHexChar2Hex(char hex) {", " int outHex = 0;", " if (isdigit(hex)) {", " outHex = hex - '0';", " } else if (isupper(hex)) {", " outHex = hex - 'A' + 10;", - " } else {", + " } else if (islower(hex)) {", " outHex = hex - 'a' + 10;", " }", " return outHex;", "}", "", - "static int HexString2Hex(char *inHexString, char *outHex, int count)", - "{", - " int ret = -1;", - " int len = 0;", - " int i;", - " char ch1, ch2;", - - " if (NULL == inHexString)", - " return -1;", - - " len = count;", - - " if (len < 1)", - " return -1;", - - " len &= ~1;", - " for (i = 0; i < len; i += 2) {", - " ch1 = inHexString[i];", - " ch2 = inHexString[i + 1];", - " outHex[i / 2 + 1] = 0;", - " if (isxdigit(ch1) && isxdigit(ch2)) {", - " ch1 = oneHexChar2Hex(ch1);", - " ch2 = oneHexChar2Hex(ch2);", - " outHex[i / 2] = (ch1 << 4) | ch2;", - " } else {", - " goto EXIT;", - " }", - " }", - " return 0;", - "EXIT:", - " return ret;", + "static int HexString2Hex(const char *inHexString, uint8_t *outHex, int count) {", + " if (inHexString == NULL || outHex == NULL || count <= 0) {", + " return -1;", + " }", + "" " int len = strlen(inHexString);", + " bool hasIncompleteByte = (len % 2 != 0);", + "", + " if (hasIncompleteByte) {", + " len--;", + " }", + "", + " if (count < len / 2) {", + " return -1;", + " }", + "", + " for (int i = 0; i < len; i += 2) {", + " char ch1 = inHexString[i];", + " char ch2 = inHexString[i + 1];", + "", + " if (!isxdigit(ch1) || !isxdigit(ch2)) {", + " return -1;", + " }", + "" " int hex1 = oneHexChar2Hex(ch1);", + " int hex2 = oneHexChar2Hex(ch2);", + "", + " outHex[i / 2] = (hex1 << 4) | hex2;", + " }", + "", + " return len / 2;", + "}", + "", + "static int is_Resolver(char *shll_text, char *shbin)", + "{", + " char *p, *p1;", + " char temp[270];", + "", + " p = strstr(shll_text, \"\\n\");", + " memcpy(shbin, shll_text, p - shll_text);", + "", + "", + " if (0 == strncmp(shbin, \"#!\", 2))", + " {", + " p1 = strchr(shbin, '/');", + " strcpy(shbin, p1);", + " }", + " else if (0 == strncmp(shbin, \":\", 1))", + " {", + " strcpy(shbin, getenv(\"SHELL\"));", + " }", + " else", + " {", + " printf(\"unknown shell!\\n\");", + " return -1;", + " }", + "", + " memset(temp, 0, 270);", + " strcpy(temp, \"which \");", + " strcat(temp, shbin);", + " strcat(temp, \" 1> /dev/null\");", + " if (0 != system(temp)) // 不存在解析器", + " {", + " printf(\"not found shell!\\n\");", + " return -1;", + " }", + " return 0;", "}", "", - -"static int is_Resolver(char *shll_text, char *shbin)", -"{", -" char *p, *p1;", -" char temp[270];", -"", -" p = strstr(shll_text, \"\\n\");", -" memcpy(shbin, shll_text, p - shll_text);", -"", -"", -" if (0 == strncmp(shbin, \"#!\", 2))", -" {", -" p1 = strchr(shbin, '/');", -" strcpy(shbin, p1);", -" }", -" else if (0 == strncmp(shbin, \":\", 1))", -" {", -" strcpy(shbin, getenv(\"SHELL\"));", -" }", -" else", -" {", -" printf(\"unknown shell!\\n\");", -" return -1;", -" }", -"", -" memset(temp, 0, 270);", -" strcpy(temp, \"which \");", -" strcat(temp, shbin);", -" strcat(temp, \" 1> /dev/null\");", -" if (0 != system(temp)) // 不存在解析器", -" {", -" printf(\"not found shell!\\n\");", -" return -1;", -" }", -" return 0;", -"}", -"", -"", -"void reverse_string(char *str, int len)", -"{", -" char *p1;", -" char *p2;", -"", -" p1 = str;", -" p2 = str + len - 1; //p2指向字符串尾地址", -" if (str == NULL) {", -" printf(\"Null pointer error!\");", -" return;", -" }", -" while (p1 < p2) //当p1地址小于p2地址时执行循环", -" {", -" char c = *p1;", -" *p1 = *p2; //完成指针指向地址的值的交换", -" *p2 = c;", -" p1++; //交换完毕后p1指针指向下一个字符地址", -" p2--; //交换完毕后p2指针指向上一个字符地址", -" }", -"", -"}", -"", -"#define BUFFER_SIZE 270", -"", -"int main(int argc, char *argv[])", -"{", -" char *argvs[BUFFER_SIZE];", -" int l=1;", -" int i=4;", -" //static uint8_t key[16] = \"aixiao.me\";", -" struct AES_ctx ctx;", -" uint8_t *Hex_string = (uint8_t *) malloc(encrypted_text_len*2);", -" char *shbin = NULL;", -"", + "", + "void reverse_string(char *str, int len)", + "{", + " char *p1;", + " char *p2;", + "", + " p1 = str;", + " p2 = str + len - 1; //p2指向字符串尾地址", + " if (str == NULL) {", + " printf(\"Null pointer error!\");", + " return;", + " }", + " while (p1 < p2) //当p1地址小于p2地址时执行循环", + " {", + " char c = *p1;", + " *p1 = *p2; //完成指针指向地址的值的交换", + " *p2 = c;", + " p1++; //交换完毕后p1指针指向下一个字符地址", + " p2--; //交换完毕后p2指针指向上一个字符地址", + " }", + "", + "}", + "", + "#define BUFFER_SIZE 270", + "", + "int main(int argc, char *argv[])", + "{", + " char *argvs[BUFFER_SIZE];", + " int l=1;", + " int i=4;", + "", + " struct AES_ctx ctx;", + " uint8_t *Hex_string = (uint8_t *) malloc(encrypted_text_len*2);", + " char *shbin = NULL;", + "", + " reverse_string((char *)Encrypted_data, encrypted_text_len*2);", + " memset(Hex_string, 0, encrypted_text_len*2);", + "", + "", + " AES_init_ctx(&ctx, key);", + " HexString2Hex((char *)Encrypted_data, (char *)Hex_string, sizeof(Encrypted_data));", -" reverse_string((char *)Encrypted_data, encrypted_text_len*2);", -" memset(Hex_string, 0, encrypted_text_len*2);", -"", -"", -" AES_init_ctx(&ctx, key);", -" HexString2Hex((char *)Encrypted_data, (char *)Hex_string, sizeof(Encrypted_data));", + " AES_ECB_decrypt(&ctx, Hex_string);", + " //printf(\"%s\\n\", Hex_string);", + "", + "", + " shbin = (char *) malloc(BUFFER_SIZE);", + " memset(shbin, 0, BUFFER_SIZE);", + " if (-1 == is_Resolver((char *)Hex_string, shbin))", + " {", + " goto EXIT;", + " }", + " //printf(\"%s\\n\", shbin);", + "", + " if (strstr(shbin, \"python\") != NULL) {", + " argvs[0] = argv[0];", + " argvs[1] = \"-c\";", + " argvs[2] = (char *)Hex_string;", + " //argvs[3] = argv[0];", -" AES_ECB_decrypt(&ctx, Hex_string);", -" //printf(\"%s\\n\", Hex_string);", -"", -"", -" shbin = (char *) malloc(BUFFER_SIZE);", -" memset(shbin, 0, BUFFER_SIZE);", -" if (-1 == is_Resolver((char *)Hex_string, shbin))", -" {", -" goto EXIT;", -" }", -" //printf(\"%s\\n\", shbin);", -"", -" if (strstr(shbin, \"python\") != NULL) {", -" argvs[0] = argv[0];", -" argvs[1] = \"-c\";", -" argvs[2] = (char *)Hex_string;", -" //argvs[3] = argv[0];", + " for(i=3; i<=argc-1+3; i++)", + " {", + " argvs[i] = argv[l];", + " l++;", + " }", + " execvp(shbin, argvs);", + " }", + " else", + " {", + " argvs[0] = argv[0];", + " argvs[1] = \"-c\";", + " argvs[2] = (char *)Hex_string;", + " argvs[3] = argv[0];", -" for(i=3; i<=argc-1+3; i++)", -" {", -" argvs[i] = argv[l];", -" l++;", -" }", -" execvp(shbin, argvs);", -" }", -" else", -" {", -" argvs[0] = argv[0];", -" argvs[1] = \"-c\";", -" argvs[2] = (char *)Hex_string;", -" argvs[3] = argv[0];", - -" for(i=4; i<=argc-1+4; i++)", -" {", -" argvs[i] = argv[l];", -" l++;", -" }", -"", -" execvp(shbin, argvs);", -" }", -"", -"", -"EXIT:", -" free(Hex_string);", -" free(shbin);", -"", -" return 0;", -"}", -0 + " for(i=4; i<=argc-1+4; i++)", + " {", + " argvs[i] = argv[l];", + " l++;", + " }", + "", + " execvp(shbin, argvs);", + " }", + "", + "", + "EXIT:", + " free(Hex_string);", + " free(shbin);", + "", + " return 0;", + "}", + 0 }; void reverse_string(char *str) @@ -737,7 +731,7 @@ void reverse_string(char *str) length = strlen(str); //获取字符串长度 p1 = str; //p1指向字符串首地址 p2 = str + length - 1; //p2指向字符串尾地址 - if (str == NULL) { + if (!str) { printf("空指针错误！"); return; } @@ -756,22 +750,54 @@ void usage(void) { printf(" SHA\n"); printf(" Shell Strict AES 128 bit encryption tool\n"); - printf("AUTHOR: AIXIAO@AIXIAO.ME\n"); + printf("Author: AIXIAO@AIXIAO.ME\n"); printf("\n"); + printf("Usage:\n"); - printf(" -k : key\n"); - printf(" -f : Script file\n"); + printf(" sha [-kfh?]\n"); + printf(" -k : Key\n"); + printf(" -f : Script File\n"); + printf(" -h -? : Print Help\n"); printf("\n"); exit(0); } +char pool[] = { + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', + 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', + 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', + 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', + 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', + 'Y', 'Z', '!', '@', '#', '$', '%', '^', '&', '*', +}; + +int rand_key(char *key) +{ + int PASSWD_LEN = 16; + struct timeval tpstart; + char password[17]; + int i = 0; + + memset(password, 0, 17); + gettimeofday(&tpstart, NULL); + srand(tpstart.tv_usec); + + while (i != PASSWD_LEN) { + password[i++] = pool[rand() % sizeof(pool)]; + } + + strcpy(key, password); + + return 0; +} + int main(int argc, char *argv[]) { - static uint8_t key[16] = "aixiao.me"; - int key_l = 0; + static uint8_t key[17] = ""; char sh_file[1024]; + int indx = 0; - int opt; char optstrs[] = ":k:f:h?"; while (-1 != (opt = getopt(argc, argv, optstrs))) { @@ -783,148 +809,139 @@ int main(int argc, char *argv[]) strcpy((char *)sh_file, optarg); break; case ':': - //printf("\nMissing argument after: -%c\n", optopt); usage(); case 'h': case '?': - //printf("\nInvalid argument: %c\n", optopt); usage(); default: usage(); } } - - key_l = strlen((char *)key); - //printf("%d\n", key_l); - - - if (key_l < 8 || key_l > 15) { - printf("The key must be 8-15 digits!\n"); - exit(1); + + if (strlen((char *)key) == 0) { + rand_key((char *)key); + } else { + if ((strlen((char *)key) < 8) || (strlen((char *)key) > 15)) { + printf("The key must be 8-15 digits!\n"); + exit(1); + } } - - + + if (argv[1] == NULL) { + usage(); + } + open_file(sh_file); - + struct AES_ctx ctx; - //static uint8_t key[16] = "aixiao.me"; uint8_t text_content[file_size * 2]; uint8_t text_content_out[file_size * 2]; uint16_t text_content_length = file_size; - unsigned char encrypted_text[file_size * 3]; + unsigned char encrypted_text[file_size * 2]; char encrypted_text_len[BUFFER_SIZE]; - uint8_t *hexString = (uint8_t *) malloc(file_size * 3); - + uint8_t *hexString = (uint8_t *) malloc(file_size * 2); + FILE *sfile = NULL; char sourcefile[BUFFER_SIZE]; char binfile[BUFFER_SIZE]; - char buildcmd[BUFFER_SIZE*10]; - - int indx = 0; - - + char buildcmd[BUFFER_SIZE * 10]; + char encrypted_key[1024]; + memset(text_content, 0, file_size * 2); memset(text_content_out, 0, file_size * 2); - memset(encrypted_text, 0, file_size * 3); + memset(encrypted_text, 0, file_size * 2); memset(encrypted_text_len, 0, BUFFER_SIZE); - memset(hexString, 0, file_size * 3); - + memset(hexString, 0, file_size * 2); + memset(sourcefile, 0, BUFFER_SIZE); memset(binfile, 0, BUFFER_SIZE); - memset(buildcmd, 0, BUFFER_SIZE*10); - - + memset(buildcmd, 0, BUFFER_SIZE * 10); + memset(encrypted_key, 0, 1024); + memcpy(text_content, buff, strlen(buff)); - - + AES_init_ctx(&ctx, key); AES_ECB_encrypt(&ctx, text_content); - //转16进制字符串 hex2str(text_content, file_size, (char *)hexString); - //printf("%s\n", hexString); - + reverse_string((char *)hexString); - //printf("%s\n", hexString); - + //拼接 strcat((char *)encrypted_text, "char Encrypted_data[]=\""); strcat((char *)encrypted_text, (const char *)hexString); strcat((char *)encrypted_text, "\";"); - - char encrypted_key[1024]; - memset(encrypted_key, 0, 1024); - strcpy(encrypted_key, "const char key[16] = \""); + + strcpy(encrypted_key, "const char key[17] = \""); strcat((char *)encrypted_key, (char *)key); strcat((char *)encrypted_key, "\";"); - - + // 长度 sprintf(encrypted_text_len, "int encrypted_text_len=%d;\n", text_content_length); - - + strcpy(sourcefile, sh_file); strcat(sourcefile, ".c"); - + // 写入文件 sfile = fopen(sourcefile, "w"); - if (sfile == NULL) - { - perror("fopen"); - return 1; + if (sfile == NULL) { + perror("fopen"); + return 1; } - + fprintf(sfile, "%s\n", encrypted_text); fprintf(sfile, "%s\n", encrypted_text_len); fprintf(sfile, "%s\n", encrypted_key); fflush(sfile); - for (indx=0; source_c[indx]; indx++) + for (indx = 0; source_c[indx]; indx++) fprintf(sfile, "%s\n", source_c[indx]); fclose(sfile); - - strcpy(binfile, sourcefile); strcat(binfile, ".x"); sleep(1); - + if (getenv("CFLAGS") != NULL) - sprintf(buildcmd, "gcc %s %s -o %s", getenv("CFLAGS"), sourcefile, binfile); + sprintf(buildcmd, "gcc %s %s -o %s", getenv("CFLAGS"), sourcefile, binfile); else sprintf(buildcmd, "gcc %s -o %s", sourcefile, binfile); - - + strcat(buildcmd, " && strip "); strcat(buildcmd, binfile); // 编译 if (0 != system(buildcmd)) { return -1; } - - + //remove(sourcefile); free(buff); - + // 压缩 - if (0 == system("which upx 1> /dev/null")) { - FILE *fp = NULL; - char upxcommand[BUFFER_SIZE]; + if (system("which upx 1> /dev/null") == 0) { + char *upxcommand = malloc(BUFFER_SIZE); + if (upxcommand == NULL) { + return -1; // 内存分配失败，处理错误 + } memset(upxcommand, 0, BUFFER_SIZE); strcpy(upxcommand, "upx -9 "); strcat(upxcommand, binfile); - sleep(1); - fp = popen(upxcommand, "r"); - if (NULL == fp) - { - return -1; + + FILE *fp = popen(upxcommand, "r"); + if (fp == NULL) { + free(upxcommand); // 释放分配的内存 + return -1; // 处理打开管道错误 } - - pclose(fp); + + int status = pclose(fp); + if (status == -1 || WEXITSTATUS(status) != 0) { + free(upxcommand); // 释放分配的内存 + return -1; // 处理执行upx命令错误 + } + + free(upxcommand); // 释放分配的内存 } - return 0; - -} +}