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add another evp decrypt test case

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This commit is contained in:
Jacob Barthelmeh
2019-11-20 12:29:22 -07:00
parent 9880ad6926
commit 1eb1755f07
1 changed files with 61 additions and 0 deletions
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61
wolfcrypt/test/test.c
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@@ -13522,6 +13522,7 @@ static int openssl_aes_test(void)
EVP_CIPHER_CTX de;
int outlen ;
int total = 0;
int i;
EVP_CIPHER_CTX_init(&en);
if (EVP_CipherInit(&en, EVP_aes_128_cbc(),
@@ -13654,6 +13655,66 @@ static int openssl_aes_test(void)
if (XMEMCMP(plain, cbcPlain, 18))
return -7334;
/* test byte by byte decrypt */
for (i = 0; i < AES_BLOCK_SIZE * 3; i++) {
plain[i] = i;
}
total = 0;
EVP_CIPHER_CTX_init(&en);
if (EVP_CipherInit(&en, EVP_aes_128_cbc(),
(unsigned char*)key, (unsigned char*)iv, 1) == 0)
return -7335;
if (EVP_CipherUpdate(&en, (byte*)cipher, &outlen,
(byte*)plain, AES_BLOCK_SIZE * 3) == 0)
return -7336;
if (outlen != AES_BLOCK_SIZE * 3)
return -7337;
total += outlen;
if (EVP_CipherFinal(&en, (byte*)&cipher[total], &outlen) == 0)
return -7338;
if (outlen != AES_BLOCK_SIZE)
return -7339;
total += outlen;
if (total != sizeof(plain))
return -7340;
total = 0;
EVP_CIPHER_CTX_init(&de);
if (EVP_CipherInit(&de, EVP_aes_128_cbc(),
(unsigned char*)key, (unsigned char*)iv, 0) == 0)
return -7341;
for (i = 0; i < AES_BLOCK_SIZE * 4; i++) {
if (EVP_CipherUpdate(&de, (byte*)plain + total, &outlen,
(byte*)cipher + i, 1) == 0)
return -7342;
if (outlen > 0) {
int j;
total += outlen;
for (j = 0; j < total; j++) {
if (plain[j] != j) {
return -7343;
}
}
}
}
if (EVP_CipherFinal(&de, (byte*)&plain[total], &outlen) == 0)
return -7344;
total += outlen;
if (total != AES_BLOCK_SIZE * 3) {
return -7345;
}
for (i = 0; i < AES_BLOCK_SIZE * 3; i++) {
if (plain[i] != i) {
return -7346;
}
}
}
/* set buffers to be exact size to catch potential over read/write */