3DES加密算法 c
时间: 2023-12-13 16:04:35 浏览: 31
以下是3DES加密算法的C语言实现示例:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/des.h>
int main()
{
DES_cblock key1, key2, key3;
DES_key_schedule ks1, ks2, ks3;
char text[] = "This is a 3DES test.";
DES_cblock input, output;
memset(input, 0, 8);
memset(output, 0, 8);
memcpy(input, text, strlen(text));
memcpy(key1, "12345678", 8);
memcpy(key2, "abcdefgh", 8);
memcpy(key3, "ijklmnop", 8);
DES_set_key_unchecked(&key1, &ks1);
DES_set_key_unchecked(&key2, &ks2);
DES_set_key_unchecked(&key3, &ks3);
DES_ecb3_encrypt(&input, &output, &ks1, &ks2, &ks3, DES_ENCRYPT);
printf("3DES encrypted result: ");
int i;
for (i = 0; i < 8; i++) {
printf("%02x", output[i]);
}
printf("\n");
return 0;
}
```