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#include "testutils.h"
#include "cast128.h"
static void
test_cast5(const struct tstring *key,
const struct tstring *cleartext,
const struct tstring *ciphertext)
{
struct cast128_ctx ctx;
uint8_t *data = xalloc(cleartext->length);
size_t length;
ASSERT (cleartext->length == ciphertext->length);
length = cleartext->length;
cast5_set_key(&ctx, key->length, key->data);
cast128_encrypt(&ctx, length, data, cleartext->data);
if (!MEMEQ(length, data, ciphertext->data))
{
fprintf(stderr, "Encrypt failed:\nInput:");
tstring_print_hex(cleartext);
fprintf(stderr, "\nOutput: ");
print_hex(length, data);
fprintf(stderr, "\nExpected:");
tstring_print_hex(ciphertext);
fprintf(stderr, "\n");
FAIL();
}
cast5_set_key(&ctx, key->length, key->data);
cast128_decrypt(&ctx, length, data, data);
if (!MEMEQ(length, data, cleartext->data))
{
fprintf(stderr, "Decrypt failed:\nInput:");
tstring_print_hex(ciphertext);
fprintf(stderr, "\nOutput: ");
print_hex(length, data);
fprintf(stderr, "\nExpected:");
tstring_print_hex(cleartext);
fprintf(stderr, "\n");
FAIL();
}
free(data);
}
void
test_main(void)
{
/* Test vectors from B.1. Single Plaintext-Key-Ciphertext Sets, RFC
* 2144 */
/* 128 bit key */
test_cipher(&nettle_cast128,
SHEX("01 23 45 67 12 34 56 78"
"23 45 67 89 34 56 78 9A"),
SHEX("01 23 45 67 89 AB CD EF"),
SHEX("23 8B 4F E5 84 7E 44 B2"));
/* 80 bit key */
test_cast5(SHEX("01 23 45 67 12 34 56 78 23 45"),
SHEX("01 23 45 67 89 AB CD EF"),
SHEX("EB 6A 71 1A 2C 02 27 1B"));
/* 40 bit key */
test_cast5(SHEX("01 23 45 67 12"),
SHEX("01 23 45 67 89 AB CD EF"),
SHEX("7A C8 16 D1 6E 9B 30 2E"));
}
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