739 lines
22 KiB
C
739 lines
22 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <string.h>
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#include <string.h>
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#define CBC 1
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#define CTR 1
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#define ECB 1
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#include "aes.h"
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#define BUFFER_SIZE 270
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char *buff;
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long file_size;
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static void hex2str(uint8_t * input, uint16_t input_len, char *output)
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{
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char *hexEncode = "0123456789ABCDEF";
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int i = 0, j = 0;
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for (i = 0; i < input_len; i++) {
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output[j++] = hexEncode[(input[i] >> 4) & 0xf];
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output[j++] = hexEncode[(input[i]) & 0xf];
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}
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}
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int open_file(char *filename)
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{
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FILE *file;
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file = fopen(filename, "r");
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if (file == NULL) {
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perror("cannot open config file.");
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exit(-1);
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}
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fseek(file, 0, SEEK_END);
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file_size = ftell(file);
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buff = (char *)malloc(file_size + 1);
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if (buff == NULL)
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perror("out of memory.");
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rewind(file);
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if (fread(buff, file_size, 1, file) < 1) {
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perror("fread");
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}
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fclose(file);
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buff[file_size] = '\0';
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return 0;
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}
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char *source_c[] = {
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"#include <stdio.h>",
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"#include <string.h>",
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"#include <stdint.h>",
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"#include <ctype.h>",
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"#include <unistd.h>",
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"#include <stdlib.h>",
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"#include <stdbool.h>",
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"#define CBC 1",
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"#define CTR 1",
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"#define ECB 1",
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"#ifndef _AES_H_",
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"#define _AES_H_",
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"",
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"#include <stdint.h>",
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"#include <stddef.h>",
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"",
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"#ifndef CBC",
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"#define CBC 1",
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"#endif",
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"",
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"#ifndef ECB",
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"#define ECB 1",
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"#endif",
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"",
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"#ifndef CTR",
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"#define CTR 1",
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"#endif",
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"",
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"#define AES128 1",
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"//#define AES192 1",
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"//#define AES256 1",
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"",
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"#define AES_BLOCKLEN 16 // Block length in bytes - AES is 128b block only",
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"",
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"#if defined(AES256) && (AES256 == 1)",
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"#define AES_KEYLEN 32",
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"#define AES_keyExpSize 240",
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"#elif defined(AES192) && (AES192 == 1)",
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"#define AES_KEYLEN 24",
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"#define AES_keyExpSize 208",
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"#else",
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"#define AES_KEYLEN 16 // Key length in bytes",
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"#define AES_keyExpSize 176",
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"#endif",
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"",
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"struct AES_ctx {",
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" uint8_t RoundKey[AES_keyExpSize];",
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"#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))",
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" uint8_t Iv[AES_BLOCKLEN];",
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"#endif",
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"};",
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"",
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"void AES_init_ctx(struct AES_ctx *ctx, const uint8_t * key);",
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"#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))",
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"void AES_init_ctx_iv(struct AES_ctx *ctx, const uint8_t * key, const uint8_t * iv);",
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"void AES_ctx_set_iv(struct AES_ctx *ctx, const uint8_t * iv);",
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"#endif",
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"",
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"#if defined(ECB) && (ECB == 1)",
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"void AES_ECB_encrypt(const struct AES_ctx *ctx, uint8_t * buf);",
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"void AES_ECB_decrypt(const struct AES_ctx *ctx, uint8_t * buf);",
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"",
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"#endif // #if defined(ECB) && (ECB == !)",
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"",
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"#if defined(CBC) && (CBC == 1)",
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"void AES_CBC_encrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);",
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"void AES_CBC_decrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);",
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"",
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"#endif // #if defined(CBC) && (CBC == 1)",
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"",
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"#if defined(CTR) && (CTR == 1)",
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"",
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"void AES_CTR_xcrypt_buffer(struct AES_ctx *ctx, uint8_t * buf, size_t length);",
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"",
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"#endif // #if defined(CTR) && (CTR == 1)",
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"",
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"#endif // _AES_H_",
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"",
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"",
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"#define Nb 4",
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"",
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"#if defined(AES256) && (AES256 == 1)",
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"#define Nk 8",
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"#define Nr 14",
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"#elif defined(AES192) && (AES192 == 1)",
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"#define Nk 6",
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"#define Nr 12",
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"#else",
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"#define Nk 4 // The number of 32 bit words in a key.",
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"#define Nr 10 // The number of rounds in AES Cipher.",
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"#endif",
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"",
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"#ifndef MULTIPLY_AS_A_FUNCTION",
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"#define MULTIPLY_AS_A_FUNCTION 0",
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"#endif",
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"",
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"typedef uint8_t state_t[4][4];",
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"",
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"static const uint8_t sbox[256] = {",
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" 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,",
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" 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,",
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" 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,",
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" 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,",
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" 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,",
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" 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,",
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" 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,",
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" 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,",
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" 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,",
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" 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,",
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" 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,",
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" 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,",
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" 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,",
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" 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,",
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" 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,",
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" 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16",
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"};",
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"",
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"#if (defined(CBC) && CBC == 1) || (defined(ECB) && ECB == 1)",
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"static const uint8_t rsbox[256] = {",
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" 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,",
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" 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,",
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" 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,",
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" 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,",
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" 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,",
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" 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,",
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" 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,",
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" 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,",
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" 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,",
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" 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,",
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" 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,",
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" 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,",
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" 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,",
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" 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,",
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" 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,",
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" 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d",
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"};",
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"#endif",
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"",
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"static const uint8_t Rcon[11] = {",
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" 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36",
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"};",
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"",
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"#define getSBoxValue(num) (sbox[(num)])",
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"",
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"static void KeyExpansion(uint8_t * RoundKey, const uint8_t * Key)",
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"{",
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" unsigned i, j, k;",
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" uint8_t tempa[4]; // Used for the column/row operations",
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"",
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" for (i = 0; i < Nk; ++i) {",
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" RoundKey[(i * 4) + 0] = Key[(i * 4) + 0];",
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" RoundKey[(i * 4) + 1] = Key[(i * 4) + 1];",
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" RoundKey[(i * 4) + 2] = Key[(i * 4) + 2];",
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" RoundKey[(i * 4) + 3] = Key[(i * 4) + 3];",
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" }",
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"",
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" for (i = Nk; i < Nb * (Nr + 1); ++i) {",
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" {",
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" k = (i - 1) * 4;",
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" tempa[0] = RoundKey[k + 0];",
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" tempa[1] = RoundKey[k + 1];",
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" tempa[2] = RoundKey[k + 2];",
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" tempa[3] = RoundKey[k + 3];",
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"",
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" }",
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"",
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" if (i % Nk == 0) {",
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" {",
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" const uint8_t u8tmp = tempa[0];",
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" tempa[0] = tempa[1];",
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" tempa[1] = tempa[2];",
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" tempa[2] = tempa[3];",
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" tempa[3] = u8tmp;",
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" }",
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"",
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" {",
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" tempa[0] = getSBoxValue(tempa[0]);",
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" tempa[1] = getSBoxValue(tempa[1]);",
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" tempa[2] = getSBoxValue(tempa[2]);",
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" tempa[3] = getSBoxValue(tempa[3]);",
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" }",
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"",
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" tempa[0] = tempa[0] ^ Rcon[i / Nk];",
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" }",
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"#if defined(AES256) && (AES256 == 1)",
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" if (i % Nk == 4) {",
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" {",
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" tempa[0] = getSBoxValue(tempa[0]);",
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" tempa[1] = getSBoxValue(tempa[1]);",
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" tempa[2] = getSBoxValue(tempa[2]);",
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" tempa[3] = getSBoxValue(tempa[3]);",
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" }",
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" }",
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"#endif",
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" j = i * 4;",
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" k = (i - Nk) * 4;",
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" RoundKey[j + 0] = RoundKey[k + 0] ^ tempa[0];",
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" RoundKey[j + 1] = RoundKey[k + 1] ^ tempa[1];",
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" RoundKey[j + 2] = RoundKey[k + 2] ^ tempa[2];",
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" RoundKey[j + 3] = RoundKey[k + 3] ^ tempa[3];",
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" }",
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"}",
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"",
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"void AES_init_ctx(struct AES_ctx *ctx, const uint8_t * key)",
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"{",
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" KeyExpansion(ctx->RoundKey, key);",
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"}",
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"",
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"#if (defined(CBC) && (CBC == 1)) || (defined(CTR) && (CTR == 1))",
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"void AES_init_ctx_iv(struct AES_ctx *ctx, const uint8_t * key, const uint8_t * iv)",
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"{",
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" KeyExpansion(ctx->RoundKey, key);",
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" memcpy(ctx->Iv, iv, AES_BLOCKLEN);",
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"}",
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"",
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"void AES_ctx_set_iv(struct AES_ctx *ctx, const uint8_t * iv)",
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"{",
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" memcpy(ctx->Iv, iv, AES_BLOCKLEN);",
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"}",
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"#endif",
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"",
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"static void AddRoundKey(uint8_t round, state_t * state, const uint8_t * RoundKey)",
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"{",
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" uint8_t i, j;",
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" for (i = 0; i < 4; ++i) {",
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" for (j = 0; j < 4; ++j) {",
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" (*state)[i][j] ^= RoundKey[(round * Nb * 4) + (i * Nb) + j];",
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" }",
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" }",
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"}",
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"",
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"static void SubBytes(state_t * state)",
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"{",
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" uint8_t i, j;",
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" for (i = 0; i < 4; ++i) {",
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" for (j = 0; j < 4; ++j) {",
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" (*state)[j][i] = getSBoxValue((*state)[j][i]);",
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" }",
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" }",
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"}",
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"",
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"static void ShiftRows(state_t * state)",
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"{",
|
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" uint8_t temp;",
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"",
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" temp = (*state)[0][1];",
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" (*state)[0][1] = (*state)[1][1];",
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" (*state)[1][1] = (*state)[2][1];",
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" (*state)[2][1] = (*state)[3][1];",
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" (*state)[3][1] = temp;",
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" ",
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" temp = (*state)[0][2];",
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" (*state)[0][2] = (*state)[2][2];",
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" (*state)[2][2] = temp;",
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"",
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" temp = (*state)[1][2];",
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" (*state)[1][2] = (*state)[3][2];",
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" (*state)[3][2] = temp;",
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"",
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" temp = (*state)[0][3];",
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" (*state)[0][3] = (*state)[3][3];",
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" (*state)[3][3] = (*state)[2][3];",
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" (*state)[2][3] = (*state)[1][3];",
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" (*state)[1][3] = temp;",
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"}",
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"",
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"static uint8_t xtime(uint8_t x)",
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"{",
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" return ((x << 1) ^ (((x >> 7) & 1) * 0x1b));",
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"}",
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"",
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"static void MixColumns(state_t * state)",
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"{",
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" uint8_t i;",
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" uint8_t Tmp, Tm, t;",
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" for (i = 0; i < 4; ++i) {",
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" t = (*state)[i][0];",
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" Tmp = (*state)[i][0] ^ (*state)[i][1] ^ (*state)[i][2] ^ (*state)[i][3];",
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" Tm = (*state)[i][0] ^ (*state)[i][1];",
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" Tm = xtime(Tm);",
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" (*state)[i][0] ^= Tm ^ Tmp;",
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" Tm = (*state)[i][1] ^ (*state)[i][2];",
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" Tm = xtime(Tm);",
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" (*state)[i][1] ^= Tm ^ Tmp;",
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" Tm = (*state)[i][2] ^ (*state)[i][3];",
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" Tm = xtime(Tm);",
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" (*state)[i][2] ^= Tm ^ Tmp;",
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" Tm = (*state)[i][3] ^ t;",
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" Tm = xtime(Tm);",
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" (*state)[i][3] ^= Tm ^ Tmp;",
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" }",
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"}",
|
|
"",
|
|
"#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 {",
|
|
" 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;",
|
|
"}",
|
|
"",
|
|
|
|
"int main(int argc, char *argv[])",
|
|
"{",
|
|
" uint8_t *Hex_string = (uint8_t *) malloc(encrypted_text_len*2);",
|
|
" memset(Hex_string, 0, encrypted_text_len*2);",
|
|
|
|
" static uint8_t key[16] = \"aixiao\";",
|
|
" struct AES_ctx ctx;",
|
|
" 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);",
|
|
|
|
" execlp(\"bash\", argv[0], \"-c\", Hex_string, (char *)0);",
|
|
|
|
|
|
" free(Hex_string);",
|
|
|
|
" return 0;",
|
|
"}",
|
|
0
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
|
|
if (argv[1] == NULL)
|
|
{
|
|
printf("%s \"shell script file\"\n", argv[0]);
|
|
exit(1);
|
|
}
|
|
|
|
open_file(argv[1]);
|
|
|
|
static uint8_t key[16] = "aixiao";
|
|
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];
|
|
char encrypted_text_len[BUFFER_SIZE];
|
|
uint8_t *hexString = (uint8_t *) malloc(file_size * 3);
|
|
|
|
FILE *sfile = NULL;
|
|
char sourcefile[BUFFER_SIZE];
|
|
char binfile[BUFFER_SIZE];
|
|
char buildcmd[BUFFER_SIZE*10];
|
|
|
|
|
|
|
|
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_len, 0, BUFFER_SIZE);
|
|
memset(hexString, 0, file_size * 3);
|
|
|
|
memset(sourcefile, 0, BUFFER_SIZE);
|
|
memset(binfile, 0, BUFFER_SIZE);
|
|
memset(buildcmd, 0, BUFFER_SIZE*10);
|
|
|
|
|
|
|
|
memcpy(text_content, buff, strlen(buff));
|
|
|
|
|
|
struct AES_ctx ctx;
|
|
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);
|
|
|
|
|
|
//拼接
|
|
strcat((char *)encrypted_text, "char Encrypted_data[]=\"");
|
|
strcat((char *)encrypted_text, (const char *)hexString);
|
|
strcat((char *)encrypted_text, "\";");
|
|
|
|
// 长度
|
|
sprintf(encrypted_text_len, "int encrypted_text_len=%d;\n", text_content_length);
|
|
|
|
|
|
strcpy(sourcefile, argv[1]);
|
|
strcat(sourcefile, ".c");
|
|
|
|
// 写入文件
|
|
sfile = fopen(sourcefile, "w");
|
|
if (sfile == NULL)
|
|
{
|
|
perror("fopen");
|
|
return 1;
|
|
}
|
|
|
|
fprintf(sfile, "%s\n", encrypted_text);
|
|
fprintf(sfile, "%s\n", encrypted_text_len);
|
|
fflush(sfile);
|
|
for (int indx = 0; source_c[indx]; indx++)
|
|
fprintf(sfile, "%s\n", source_c[indx]);
|
|
fclose(sfile);
|
|
|
|
|
|
|
|
strcpy(binfile, sourcefile);
|
|
strcat(binfile, ".x");
|
|
sleep(1);
|
|
|
|
sprintf(buildcmd, "gcc -Wall -Os %s -o %s -static", sourcefile, binfile);
|
|
system(buildcmd);
|
|
|
|
//压缩
|
|
char upxcommand[BUFFER_SIZE];
|
|
memset(upxcommand, 0, BUFFER_SIZE);
|
|
strcpy(upxcommand, "upx -9 ");
|
|
strcat(upxcommand, binfile);
|
|
sleep(1);
|
|
system(upxcommand);
|
|
//remove(sourcefile);
|
|
|
|
|
|
free(buff);
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|