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/*
* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* CAST low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <openssl/opensslconf.h> /* To see if OPENSSL_NO_CAST is defined */
#include "internal/nelem.h"
#include "testutil.h"
#ifndef OPENSSL_NO_CAST
# include <openssl/cast.h>
static unsigned char k[16] = {
0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78,
0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A
};
static unsigned char in[8] =
{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF };
static int k_len[3] = { 16, 10, 5 };
static unsigned char c[3][8] = {
{0x23, 0x8B, 0x4F, 0xE5, 0x84, 0x7E, 0x44, 0xB2},
{0xEB, 0x6A, 0x71, 0x1A, 0x2C, 0x02, 0x27, 0x1B},
{0x7A, 0xC8, 0x16, 0xD1, 0x6E, 0x9B, 0x30, 0x2E},
};
static unsigned char in_a[16] = {
0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78,
0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A
};
static unsigned char in_b[16] = {
0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78,
0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A
};
static unsigned char c_a[16] = {
0xEE, 0xA9, 0xD0, 0xA2, 0x49, 0xFD, 0x3B, 0xA6,
0xB3, 0x43, 0x6F, 0xB8, 0x9D, 0x6D, 0xCA, 0x92
};
static unsigned char c_b[16] = {
0xB2, 0xC9, 0x5E, 0xB0, 0x0C, 0x31, 0xAD, 0x71,
0x80, 0xAC, 0x05, 0xB8, 0xE8, 0x3D, 0x69, 0x6E
};
static int cast_test_vector(int z)
{
int testresult = 1;
CAST_KEY key;
unsigned char out[80];
CAST_set_key(&key, k_len[z], k);
CAST_ecb_encrypt(in, out, &key, CAST_ENCRYPT);
if (!TEST_mem_eq(out, sizeof(c[z]), c[z], sizeof(c[z]))) {
TEST_info("CAST_ENCRYPT iteration %d failed (len=%d)", z, k_len[z]);
testresult = 0;
}
CAST_ecb_encrypt(out, out, &key, CAST_DECRYPT);
if (!TEST_mem_eq(out, sizeof(in), in, sizeof(in))) {
TEST_info("CAST_DECRYPT iteration %d failed (len=%d)", z, k_len[z]);
testresult = 0;
}
return testresult;
}
static int cast_test_iterations(void)
{
long l;
int testresult = 1;
CAST_KEY key, key_b;
unsigned char out_a[16], out_b[16];
memcpy(out_a, in_a, sizeof(in_a));
memcpy(out_b, in_b, sizeof(in_b));
for (l = 0; l < 1000000L; l++) {
CAST_set_key(&key_b, 16, out_b);
CAST_ecb_encrypt(&(out_a[0]), &(out_a[0]), &key_b, CAST_ENCRYPT);
CAST_ecb_encrypt(&(out_a[8]), &(out_a[8]), &key_b, CAST_ENCRYPT);
CAST_set_key(&key, 16, out_a);
CAST_ecb_encrypt(&(out_b[0]), &(out_b[0]), &key, CAST_ENCRYPT);
CAST_ecb_encrypt(&(out_b[8]), &(out_b[8]), &key, CAST_ENCRYPT);
}
if (!TEST_mem_eq(out_a, sizeof(c_a), c_a, sizeof(c_a))
|| !TEST_mem_eq(out_b, sizeof(c_b), c_b, sizeof(c_b)))
testresult = 0;
return testresult;
}
#endif
int setup_tests(void)
{
#ifndef OPENSSL_NO_CAST
ADD_ALL_TESTS(cast_test_vector, OSSL_NELEM(k_len));
ADD_TEST(cast_test_iterations);
#endif
return 1;
}
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