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#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "aes_cbc.h"
#define AES_BLOCK_SIZE 16
#define KEY_SIZE 128 /* bits */
#define KEY "1234567890123456"
#define STR "hola guaso como estaisss ... 012"
#define STRSZ (sizeof(STR)-1)
#define EMT_AESCBC_BLKLEN AES_BLOCK_SIZE
#define AES_CONTEXT_T aes_context
#define EMT_ESPAES_KEY_SZ 16
int pretty_print(const unsigned char *buf, int count) {
int i=0;
for (;i<count;i++) {
if (i%8==0) putchar(' ');
if (i%16==0) putchar('\n');
printf ("%02hhx ", buf[i]);
}
putchar('\n');
return i;
}
//#define SIZE STRSZ/2
#define SIZE STRSZ
int main() {
int ret;
char buf0[SIZE+1], buf1[SIZE+1];
char IV[AES_BLOCK_SIZE]="\0\0\0\0\0\0\0\0" "\0\0\0\0\0\0\0\0";
aes_context ac;
AES_set_key(&ac, KEY, KEY_SIZE);
//pretty_print((char *)&ac.aes_e_key, sizeof(ac.aes_e_key));
memset(buf0, 0, sizeof (buf0));
memset(buf1, 0, sizeof (buf1));
ret=AES_cbc_encrypt(&ac, STR, buf0, SIZE, IV, 1);
pretty_print(buf0, SIZE);
printf("size=%d ret=%d\n%s\n", SIZE, ret, buf0);
ret=AES_cbc_encrypt(&ac, buf0, buf1, SIZE, IV, 0);
printf("size=%d ret=%d\n%s\n", SIZE, ret, buf1);
return 0;
}
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