這是我的代碼(錯誤檢查被故意省略了對代碼的可讀性):AES128/CBC測試不工作
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gcrypt.h>
#define GCRYPT_VERSION "1.5.0"
#define GCRY_CIPHER GCRY_CIPHER_AES128
int main(void){
if(!gcry_check_version(GCRYPT_VERSION)){
fputs("libgcrypt version mismatch\n", stderr);
exit(2);
}
gcry_control(GCRYCTL_SUSPEND_SECMEM_WARN);
gcry_control(GCRYCTL_INIT_SECMEM, 16384, 0);
gcry_control(GCRYCTL_RESUME_SECMEM_WARN);
gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
int algo = -1;
size_t i;
const char *name = "aes128";
char plain_text[16] = {0x80};
char key[16] = {0};
char iniVector[16] = {0};
size_t txtLenght = strlen(plain_text);
char *encBuffer = malloc(txtLenght);
gcry_cipher_hd_t hd;
algo = gcry_cipher_map_name(name);
size_t blkLength = gcry_cipher_get_algo_blklen(GCRY_CIPHER);
size_t keyLength = gcry_cipher_get_algo_keylen(GCRY_CIPHER);
gcry_cipher_open(&hd, algo, GCRY_CIPHER_MODE_CBC, 0);
gcry_cipher_setkey(hd, key, keyLength);
gcry_cipher_setiv(hd, iniVector, blkLength);
gcry_cipher_encrypt(hd, encBuffer, txtLenght, plain_text, txtLenght);
printf("encBuffer = ");
for(i = 0; i < txtLenght; i++){
printf("%02x", (unsigned char) encBuffer[i]);
}
printf("\n");
gcry_cipher_close(hd);
free(encBuffer);
return 0;
}
預期結果:
KEY = 00000000000000000000000000000000
IV = 00000000000000000000000000000000
PLAINTEXT = 80000000000000000000000000000000
CIPHERTEXT = 3ad78e726c1ec02b7ebfe92b23d9ec34
我的結果:
KEY = 00000000000000000000000000000000
IV = 00000000000000000000000000000000
PLAINTEXT = 80000000000000000000000000000000
密文= 42
爲什麼我得到這個輸出?我究竟做錯了什麼?
是否確定要包括結尾的空字符:'爲size_t txtLenght = strlen的(plain_text) +1;''? – ouah
哦,親愛的!你是對的!我更新了我的代碼! – polslinux
現在你確定你的純文本,鍵和iv必須是ASCII格式而不是十六進制格式嗎? – ouah