DES加密解密C/C++

#include <iostream>
#include <rpc/des_crypt.h>
using namespace std;

//DES ECB加密
void des_encrypt(const char *key, char *data, int len)
{
char pkey[8];
strncpy(pkey, key, 8);
des_setparity(pkey);
ecb_crypt(pkey, data, len, DES_ENCRYPT);
}
//DES ECB解密
void des_decrypt(const char *key, char *data, int len)
{
char pkey[8];
strncpy(pkey, key, 8);
des_setparity(pkey);
ecb_crypt(pkey, data, len, DES_DECRYPT);
}

//DES CBC加密
void cbc_des_encrypt(const char *key, char *data, int len, const char *ivec)
{
char pkey[8];
strncpy(pkey, key, 8);
char vec[8];
strncpy(vec, ivec, 8);
des_setparity(pkey);
cbc_crypt(pkey, data, len, DES_ENCRYPT, vec);
}

//DES CBC解密
void cbc_des_decrypt(const char *key, char *data, int len, const char *ivec)
{
char pkey[8];
strncpy(pkey, key, 8);
char vec[8];
strncpy(vec, ivec, 8);
des_setparity(pkey);
cbc_crypt(pkey, data, len, DES_DECRYPT, vec);
}

int main()
{
char data[4096] = "cea3e8e1659582206e0be32539729e9ff";
int len = strlen(data);
cout<<len<<endl;
//获取数据需要多少个8字节容纳
int slice_num = 0;
if(len % 8 == 0)
{
slice_num = len/8;
}
else
{
slice_num = len/8 + 1;
}
cbc_des_encrypt("desmiyao", data, slice_num*8, "cbcinive");

printf("%s\n", data);

cbc_des_decrypt("desmiyao", data, slice_num*8, "cbcinive");
cout<<data<<endl;
return 0;
}