113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
/* test CFB/OFB/CBC modes */
|
|
#include "test.h"
|
|
|
|
int modes_test(void)
|
|
{
|
|
unsigned char pt[64], ct[64], tmp[64], key[16], iv[16], iv2[16];
|
|
int x, cipher_idx;
|
|
symmetric_CBC cbc;
|
|
symmetric_CFB cfb;
|
|
symmetric_OFB ofb;
|
|
symmetric_CTR ctr;
|
|
unsigned long l;
|
|
|
|
/* make a random pt, key and iv */
|
|
yarrow_read(pt, 64, &test_yarrow);
|
|
yarrow_read(key, 16, &test_yarrow);
|
|
yarrow_read(iv, 16, &test_yarrow);
|
|
|
|
/* get idx of AES handy */
|
|
cipher_idx = find_cipher("aes");
|
|
if (cipher_idx == -1) {
|
|
printf("test requires AES");
|
|
return 1;
|
|
}
|
|
|
|
/* test CBC mode */
|
|
/* encode the block */
|
|
DO(cbc_start(cipher_idx, iv, key, 16, 0, &cbc));
|
|
l = sizeof(iv2);
|
|
DO(cbc_getiv(iv2, &l, &cbc));
|
|
if (l != 16 || memcmp(iv2, iv, 16)) {
|
|
printf("cbc_getiv failed");
|
|
return 1;
|
|
}
|
|
for (x = 0; x < 4; x++) {
|
|
DO(cbc_encrypt(pt+x*16, ct+x*16, &cbc));
|
|
}
|
|
|
|
/* decode the block */
|
|
DO(cbc_setiv(iv2, l, &cbc));
|
|
zeromem(tmp, sizeof(tmp));
|
|
for (x = 0; x < 4; x++) {
|
|
DO(cbc_decrypt(ct+x*16, tmp+x*16, &cbc));
|
|
}
|
|
if (memcmp(tmp, pt, 64) != 0) {
|
|
printf("CBC failed");
|
|
return 1;
|
|
}
|
|
|
|
/* test CFB mode */
|
|
/* encode the block */
|
|
DO(cfb_start(cipher_idx, iv, key, 16, 0, &cfb));
|
|
l = sizeof(iv2);
|
|
DO(cfb_getiv(iv2, &l, &cfb));
|
|
/* note we don't memcmp iv2/iv since cfb_start processes the IV for the first block */
|
|
if (l != 16) {
|
|
printf("cfb_getiv failed");
|
|
return 1;
|
|
}
|
|
DO(cfb_encrypt(pt, ct, 64, &cfb));
|
|
|
|
/* decode the block */
|
|
DO(cfb_setiv(iv, l, &cfb));
|
|
zeromem(tmp, sizeof(tmp));
|
|
DO(cfb_decrypt(ct, tmp, 64, &cfb));
|
|
if (memcmp(tmp, pt, 64) != 0) {
|
|
printf("CFB failed");
|
|
return 1;
|
|
}
|
|
|
|
/* test OFB mode */
|
|
/* encode the block */
|
|
DO(ofb_start(cipher_idx, iv, key, 16, 0, &ofb));
|
|
l = sizeof(iv2);
|
|
DO(ofb_getiv(iv2, &l, &ofb));
|
|
if (l != 16 || memcmp(iv2, iv, 16)) {
|
|
printf("ofb_getiv failed");
|
|
return 1;
|
|
}
|
|
DO(ofb_encrypt(pt, ct, 64, &ofb));
|
|
|
|
/* decode the block */
|
|
DO(ofb_setiv(iv2, l, &ofb));
|
|
zeromem(tmp, sizeof(tmp));
|
|
DO(ofb_decrypt(ct, tmp, 64, &ofb));
|
|
if (memcmp(tmp, pt, 64) != 0) {
|
|
printf("OFB failed");
|
|
return 1;
|
|
}
|
|
|
|
/* test CTR mode */
|
|
/* encode the block */
|
|
DO(ctr_start(cipher_idx, iv, key, 16, 0, &ctr));
|
|
l = sizeof(iv2);
|
|
DO(ctr_getiv(iv2, &l, &ctr));
|
|
if (l != 16 || memcmp(iv2, iv, 16)) {
|
|
printf("ctr_getiv failed");
|
|
return 1;
|
|
}
|
|
DO(ctr_encrypt(pt, ct, 64, &ctr));
|
|
|
|
/* decode the block */
|
|
DO(ctr_setiv(iv2, l, &ctr));
|
|
zeromem(tmp, sizeof(tmp));
|
|
DO(ctr_decrypt(ct, tmp, 64, &ctr));
|
|
if (memcmp(tmp, pt, 64) != 0) {
|
|
printf("CTR failed");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|