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openssl/test/igetest.c

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/*
* Copyright 2006-2025 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
*/
/* The AES_ige_* functions are deprecated, so we suppress warnings about them */
#define OPENSSL_SUPPRESS_DEPRECATED
#include <openssl/crypto.h>
#include <openssl/aes.h>
#include <openssl/rand.h>
#include <stdio.h>
#include <string.h>
#include "internal/nelem.h"
#include "testutil.h"
#ifndef OPENSSL_NO_DEPRECATED_3_0
# define TEST_SIZE 128
# define BIG_TEST_SIZE 10240
# if BIG_TEST_SIZE < TEST_SIZE
# error BIG_TEST_SIZE is smaller than TEST_SIZE
# endif
static unsigned char rkey[16];
static unsigned char rkey2[16];
static unsigned char plaintext[BIG_TEST_SIZE];
static unsigned char saved_iv[AES_BLOCK_SIZE * 4];
# define MAX_VECTOR_SIZE 64
struct ige_test {
const unsigned char key[16];
const unsigned char iv[32];
const unsigned char in[MAX_VECTOR_SIZE];
const unsigned char out[MAX_VECTOR_SIZE];
const size_t length;
const int encrypt;
};
static struct ige_test const ige_test_vectors[] = {
{{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f}, /* key */
{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f}, /* iv */
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* in */
{0x1a, 0x85, 0x19, 0xa6, 0x55, 0x7b, 0xe6, 0x52,
0xe9, 0xda, 0x8e, 0x43, 0xda, 0x4e, 0xf4, 0x45,
0x3c, 0xf4, 0x56, 0xb4, 0xca, 0x48, 0x8a, 0xa3,
0x83, 0xc7, 0x9c, 0x98, 0xb3, 0x47, 0x97, 0xcb}, /* out */
32, AES_ENCRYPT}, /* test vector 0 */
{{0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20,
0x61, 0x6e, 0x20, 0x69, 0x6d, 0x70, 0x6c, 0x65}, /* key */
{0x6d, 0x65, 0x6e, 0x74, 0x61, 0x74, 0x69, 0x6f,
0x6e, 0x20, 0x6f, 0x66, 0x20, 0x49, 0x47, 0x45,
0x20, 0x6d, 0x6f, 0x64, 0x65, 0x20, 0x66, 0x6f,
0x72, 0x20, 0x4f, 0x70, 0x65, 0x6e, 0x53, 0x53}, /* iv */
{0x4c, 0x2e, 0x20, 0x4c, 0x65, 0x74, 0x27, 0x73,
0x20, 0x68, 0x6f, 0x70, 0x65, 0x20, 0x42, 0x65,
0x6e, 0x20, 0x67, 0x6f, 0x74, 0x20, 0x69, 0x74,
0x20, 0x72, 0x69, 0x67, 0x68, 0x74, 0x21, 0x0a}, /* in */
{0x99, 0x70, 0x64, 0x87, 0xa1, 0xcd, 0xe6, 0x13,
0xbc, 0x6d, 0xe0, 0xb6, 0xf2, 0x4b, 0x1c, 0x7a,
0xa4, 0x48, 0xc8, 0xb9, 0xc3, 0x40, 0x3e, 0x34,
0x67, 0xa8, 0xca, 0xd8, 0x93, 0x40, 0xf5, 0x3b}, /* out */
32, AES_DECRYPT}, /* test vector 1 */
};
struct bi_ige_test {
const unsigned char key1[32];
const unsigned char key2[32];
const unsigned char iv[64];
const unsigned char in[MAX_VECTOR_SIZE];
const unsigned char out[MAX_VECTOR_SIZE];
const size_t keysize;
const size_t length;
const int encrypt;
};
static struct bi_ige_test const bi_ige_test_vectors[] = {
{{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f}, /* key1 */
{0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f}, /* key2 */
{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f}, /* iv */
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* in */
{0x14, 0x40, 0x6f, 0xae, 0xa2, 0x79, 0xf2, 0x56,
0x1f, 0x86, 0xeb, 0x3b, 0x7d, 0xff, 0x53, 0xdc,
0x4e, 0x27, 0x0c, 0x03, 0xde, 0x7c, 0xe5, 0x16,
0x6a, 0x9c, 0x20, 0x33, 0x9d, 0x33, 0xfe, 0x12}, /* out */
16, 32, AES_ENCRYPT}, /* test vector 0 */
{{0x58, 0x0a, 0x06, 0xe9, 0x97, 0x07, 0x59, 0x5c,
0x9e, 0x19, 0xd2, 0xa7, 0xbb, 0x40, 0x2b, 0x7a,
0xc7, 0xd8, 0x11, 0x9e, 0x4c, 0x51, 0x35, 0x75,
0x64, 0x28, 0x0f, 0x23, 0xad, 0x74, 0xac, 0x37}, /* key1 */
{0xd1, 0x80, 0xa0, 0x31, 0x47, 0xa3, 0x11, 0x13,
0x86, 0x26, 0x9e, 0x6d, 0xff, 0xaf, 0x72, 0x74,
0x5b, 0xa2, 0x35, 0x81, 0xd2, 0xa6, 0x3d, 0x21,
0x67, 0x7b, 0x58, 0xa8, 0x18, 0xf9, 0x72, 0xe4}, /* key2 */
{0x80, 0x3d, 0xbd, 0x4c, 0xe6, 0x7b, 0x06, 0xa9,
0x53, 0x35, 0xd5, 0x7e, 0x71, 0xc1, 0x70, 0x70,
0x74, 0x9a, 0x00, 0x28, 0x0c, 0xbf, 0x6c, 0x42,
0x9b, 0xa4, 0xdd, 0x65, 0x11, 0x77, 0x7c, 0x67,
0xfe, 0x76, 0x0a, 0xf0, 0xd5, 0xc6, 0x6e, 0x6a,
0xe7, 0x5e, 0x4c, 0xf2, 0x7e, 0x9e, 0xf9, 0x20,
0x0e, 0x54, 0x6f, 0x2d, 0x8a, 0x8d, 0x7e, 0xbd,
0x48, 0x79, 0x37, 0x99, 0xff, 0x27, 0x93, 0xa3}, /* iv */
{0xf1, 0x54, 0x3d, 0xca, 0xfe, 0xb5, 0xef, 0x1c,
0x4f, 0xa6, 0x43, 0xf6, 0xe6, 0x48, 0x57, 0xf0,
0xee, 0x15, 0x7f, 0xe3, 0xe7, 0x2f, 0xd0, 0x2f,
0x11, 0x95, 0x7a, 0x17, 0x00, 0xab, 0xa7, 0x0b,
0xbe, 0x44, 0x09, 0x9c, 0xcd, 0xac, 0xa8, 0x52,
0xa1, 0x8e, 0x7b, 0x75, 0xbc, 0xa4, 0x92, 0x5a,
0xab, 0x46, 0xd3, 0x3a, 0xa0, 0xd5, 0x35, 0x1c,
0x55, 0xa4, 0xb3, 0xa8, 0x40, 0x81, 0xa5, 0x0b}, /* in */
{0x42, 0xe5, 0x28, 0x30, 0x31, 0xc2, 0xa0, 0x23,
0x68, 0x49, 0x4e, 0xb3, 0x24, 0x59, 0x92, 0x79,
0xc1, 0xa5, 0xcc, 0xe6, 0x76, 0x53, 0xb1, 0xcf,
0x20, 0x86, 0x23, 0xe8, 0x72, 0x55, 0x99, 0x92,
0x0d, 0x16, 0x1c, 0x5a, 0x2f, 0xce, 0xcb, 0x51,
0xe2, 0x67, 0xfa, 0x10, 0xec, 0xcd, 0x3d, 0x67,
0xa5, 0xe6, 0xf7, 0x31, 0x26, 0xb0, 0x0d, 0x76,
0x5e, 0x28, 0xdc, 0x7f, 0x01, 0xc5, 0xa5, 0x4c}, /* out */
32, 64, AES_ENCRYPT}, /* test vector 1 */
};
static int test_ige_vectors(int n)
{
const struct ige_test *const v = &ige_test_vectors[n];
AES_KEY key;
unsigned char buf[MAX_VECTOR_SIZE];
unsigned char iv[AES_BLOCK_SIZE * 2];
int testresult = 1;
if (!TEST_size_t_le(v->length, MAX_VECTOR_SIZE))
return 0;
if (v->encrypt == AES_ENCRYPT)
AES_set_encrypt_key(v->key, 8 * sizeof(v->key), &key);
else
AES_set_decrypt_key(v->key, 8 * sizeof(v->key), &key);
memcpy(iv, v->iv, sizeof(iv));
AES_ige_encrypt(v->in, buf, v->length, &key, iv, v->encrypt);
if (!TEST_mem_eq(v->out, v->length, buf, v->length)) {
TEST_info("IGE test vector %d failed", n);
test_output_memory("key", v->key, sizeof(v->key));
test_output_memory("iv", v->iv, sizeof(v->iv));
test_output_memory("in", v->in, v->length);
testresult = 0;
}
/* try with in == out */
memcpy(iv, v->iv, sizeof(iv));
memcpy(buf, v->in, v->length);
AES_ige_encrypt(buf, buf, v->length, &key, iv, v->encrypt);
if (!TEST_mem_eq(v->out, v->length, buf, v->length)) {
TEST_info("IGE test vector %d failed (with in == out)", n);
test_output_memory("key", v->key, sizeof(v->key));
test_output_memory("iv", v->iv, sizeof(v->iv));
test_output_memory("in", v->in, v->length);
testresult = 0;
}
return testresult;
}
static int test_bi_ige_vectors(int n)
{
const struct bi_ige_test *const v = &bi_ige_test_vectors[n];
AES_KEY key1;
AES_KEY key2;
unsigned char buf[MAX_VECTOR_SIZE];
if (!TEST_size_t_le(v->length, MAX_VECTOR_SIZE))
return 0;
if (v->encrypt == AES_ENCRYPT) {
AES_set_encrypt_key(v->key1, (int)(8 * v->keysize), &key1);
AES_set_encrypt_key(v->key2, (int)(8 * v->keysize), &key2);
} else {
AES_set_decrypt_key(v->key1, (int)(8 * v->keysize), &key1);
AES_set_decrypt_key(v->key2, (int)(8 * v->keysize), &key2);
}
AES_bi_ige_encrypt(v->in, buf, v->length, &key1, &key2, v->iv,
v->encrypt);
if (!TEST_mem_eq(v->out, v->length, buf, v->length)) {
test_output_memory("key 1", v->key1, sizeof(v->key1));
test_output_memory("key 2", v->key2, sizeof(v->key2));
test_output_memory("iv", v->iv, sizeof(v->iv));
test_output_memory("in", v->in, v->length);
return 0;
}
return 1;
}
static int test_ige_enc_dec(void)
{
AES_KEY key;
unsigned char iv[AES_BLOCK_SIZE * 4];
unsigned char ciphertext[BIG_TEST_SIZE];
unsigned char checktext[BIG_TEST_SIZE];
memcpy(iv, saved_iv, sizeof(iv));
AES_set_encrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE, &key, iv, AES_ENCRYPT);
AES_set_decrypt_key(rkey, 8 * sizeof(rkey), &key);
memcpy(iv, saved_iv, sizeof(iv));
AES_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, iv, AES_DECRYPT);
return TEST_mem_eq(checktext, TEST_SIZE, plaintext, TEST_SIZE);
}
static int test_ige_enc_chaining(void)
{
AES_KEY key;
unsigned char iv[AES_BLOCK_SIZE * 4];
unsigned char ciphertext[BIG_TEST_SIZE];
unsigned char checktext[BIG_TEST_SIZE];
AES_set_encrypt_key(rkey, 8 * sizeof(rkey), &key);
memcpy(iv, saved_iv, sizeof(iv));
AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE / 2, &key, iv,
AES_ENCRYPT);
AES_ige_encrypt(plaintext + TEST_SIZE / 2,
ciphertext + TEST_SIZE / 2, TEST_SIZE / 2,
&key, iv, AES_ENCRYPT);
AES_set_decrypt_key(rkey, 8 * sizeof(rkey), &key);
memcpy(iv, saved_iv, sizeof(iv));
AES_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, iv, AES_DECRYPT);
return TEST_mem_eq(checktext, TEST_SIZE, plaintext, TEST_SIZE);
}
static int test_ige_dec_chaining(void)
{
AES_KEY key;
unsigned char iv[AES_BLOCK_SIZE * 4];
unsigned char ciphertext[BIG_TEST_SIZE];
unsigned char checktext[BIG_TEST_SIZE];
AES_set_encrypt_key(rkey, 8 * sizeof(rkey), &key);
memcpy(iv, saved_iv, sizeof(iv));
AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE / 2, &key, iv,
AES_ENCRYPT);
AES_ige_encrypt(plaintext + TEST_SIZE / 2,
ciphertext + TEST_SIZE / 2, TEST_SIZE / 2,
&key, iv, AES_ENCRYPT);
AES_set_decrypt_key(rkey, 8 * sizeof(rkey), &key);
memcpy(iv, saved_iv, sizeof(iv));
AES_ige_encrypt(ciphertext, checktext, TEST_SIZE / 2, &key, iv,
AES_DECRYPT);
AES_ige_encrypt(ciphertext + TEST_SIZE / 2,
checktext + TEST_SIZE / 2, TEST_SIZE / 2, &key, iv,
AES_DECRYPT);
return TEST_mem_eq(checktext, TEST_SIZE, plaintext, TEST_SIZE);
}
static int test_ige_garble_forwards(void)
{
AES_KEY key;
unsigned char iv[AES_BLOCK_SIZE * 4];
unsigned char ciphertext[BIG_TEST_SIZE];
unsigned char checktext[BIG_TEST_SIZE];
unsigned int n;
int testresult = 1;
const size_t ctsize = sizeof(checktext);
size_t matches;
AES_set_encrypt_key(rkey, 8 * sizeof(rkey), &key);
memcpy(iv, saved_iv, sizeof(iv));
AES_ige_encrypt(plaintext, ciphertext, sizeof(plaintext), &key, iv,
AES_ENCRYPT);
/* corrupt halfway through */
++ciphertext[sizeof(ciphertext) / 2];
AES_set_decrypt_key(rkey, 8 * sizeof(rkey), &key);
memcpy(iv, saved_iv, sizeof(iv));
AES_ige_encrypt(ciphertext, checktext, sizeof(checktext), &key, iv,
AES_DECRYPT);
matches = 0;
for (n = 0; n < sizeof(checktext); ++n)
if (checktext[n] == plaintext[n])
++matches;
/* Fail if there is more than 51% matching bytes */
if (!TEST_size_t_le(matches, ctsize / 2 + ctsize / 100))
testresult = 0;
/* Fail if the garble goes backwards */
if (!TEST_size_t_gt(matches, ctsize / 2))
testresult = 0;
return testresult;
}
static int test_bi_ige_enc_dec(void)
{
AES_KEY key, key2;
unsigned char iv[AES_BLOCK_SIZE * 4];
unsigned char ciphertext[BIG_TEST_SIZE];
unsigned char checktext[BIG_TEST_SIZE];
memcpy(iv, saved_iv, sizeof(iv));
AES_set_encrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_set_encrypt_key(rkey2, 8 * sizeof(rkey2), &key2);
AES_bi_ige_encrypt(plaintext, ciphertext, TEST_SIZE, &key, &key2, iv,
AES_ENCRYPT);
AES_set_decrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_set_decrypt_key(rkey2, 8 * sizeof(rkey2), &key2);
AES_bi_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, &key2, iv,
AES_DECRYPT);
return TEST_mem_eq(checktext, TEST_SIZE, plaintext, TEST_SIZE);
}
static int test_bi_ige_garble1(void)
{
AES_KEY key, key2;
unsigned char iv[AES_BLOCK_SIZE * 4];
unsigned char ciphertext[BIG_TEST_SIZE];
unsigned char checktext[BIG_TEST_SIZE];
unsigned int n;
size_t matches;
memcpy(iv, saved_iv, sizeof(iv));
AES_set_encrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_set_encrypt_key(rkey2, 8 * sizeof(rkey2), &key2);
AES_ige_encrypt(plaintext, ciphertext, sizeof(plaintext), &key, iv,
AES_ENCRYPT);
/* corrupt halfway through */
++ciphertext[sizeof(ciphertext) / 2];
AES_set_decrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_set_decrypt_key(rkey2, 8 * sizeof(rkey2), &key2);
AES_ige_encrypt(ciphertext, checktext, sizeof(checktext), &key, iv,
AES_DECRYPT);
matches = 0;
for (n = 0; n < sizeof(checktext); ++n)
if (checktext[n] == plaintext[n])
++matches;
/* Fail if there is more than 1% matching bytes */
return TEST_size_t_le(matches, sizeof(checktext) / 100);
}
static int test_bi_ige_garble2(void)
{
AES_KEY key, key2;
unsigned char iv[AES_BLOCK_SIZE * 4];
unsigned char ciphertext[BIG_TEST_SIZE];
unsigned char checktext[BIG_TEST_SIZE];
unsigned int n;
size_t matches;
memcpy(iv, saved_iv, sizeof(iv));
AES_set_encrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_set_encrypt_key(rkey2, 8 * sizeof(rkey2), &key2);
AES_ige_encrypt(plaintext, ciphertext, sizeof(plaintext), &key, iv,
AES_ENCRYPT);
/* corrupt right at the end */
++ciphertext[sizeof(ciphertext) - 1];
AES_set_decrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_set_decrypt_key(rkey2, 8 * sizeof(rkey2), &key2);
AES_ige_encrypt(ciphertext, checktext, sizeof(checktext), &key, iv,
AES_DECRYPT);
matches = 0;
for (n = 0; n < sizeof(checktext); ++n)
if (checktext[n] == plaintext[n])
++matches;
/* Fail if there is more than 1% matching bytes */
return TEST_size_t_le(matches, sizeof(checktext) / 100);
}
static int test_bi_ige_garble3(void)
{
AES_KEY key, key2;
unsigned char iv[AES_BLOCK_SIZE * 4];
unsigned char ciphertext[BIG_TEST_SIZE];
unsigned char checktext[BIG_TEST_SIZE];
unsigned int n;
size_t matches;
memcpy(iv, saved_iv, sizeof(iv));
AES_set_encrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_set_encrypt_key(rkey2, 8 * sizeof(rkey2), &key2);
AES_ige_encrypt(plaintext, ciphertext, sizeof(plaintext), &key, iv,
AES_ENCRYPT);
/* corrupt right at the start */
++ciphertext[0];
AES_set_decrypt_key(rkey, 8 * sizeof(rkey), &key);
AES_set_decrypt_key(rkey2, 8 * sizeof(rkey2), &key2);
AES_ige_encrypt(ciphertext, checktext, sizeof(checktext), &key, iv,
AES_DECRYPT);
matches = 0;
for (n = 0; n < sizeof(checktext); ++n)
if (checktext[n] == plaintext[n])
++matches;
/* Fail if there is more than 1% matching bytes */
return TEST_size_t_le(matches, sizeof(checktext) / 100);
}
#endif
int setup_tests(void)
{
#ifndef OPENSSL_NO_DEPRECATED_3_0
RAND_bytes(rkey, sizeof(rkey));
RAND_bytes(rkey2, sizeof(rkey2));
RAND_bytes(plaintext, sizeof(plaintext));
RAND_bytes(saved_iv, sizeof(saved_iv));
ADD_TEST(test_ige_enc_dec);
ADD_TEST(test_ige_enc_chaining);
ADD_TEST(test_ige_dec_chaining);
ADD_TEST(test_ige_garble_forwards);
ADD_TEST(test_bi_ige_enc_dec);
ADD_TEST(test_bi_ige_garble1);
ADD_TEST(test_bi_ige_garble2);
ADD_TEST(test_bi_ige_garble3);
ADD_ALL_TESTS(test_ige_vectors, OSSL_NELEM(ige_test_vectors));
ADD_ALL_TESTS(test_bi_ige_vectors, OSSL_NELEM(bi_ige_test_vectors));
#endif
return 1;
}
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