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/*
* cryptsetup crypto name and hex conversion helper test vectors
*
* Copyright (C) 2022-2023 Milan Broz
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "utils_crypt.h"
#include "libcryptsetup.h"
#ifndef ARRAY_SIZE
# define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
#endif
/*
* Cryptsetup/dm-crypt algorithm naming conversion test
*/
struct mode_test_vector {
const char *input;
const char *cipher;
const char *mode;
int keys;
};
static struct mode_test_vector mode_test_vectors[] = {
{ "aes-xts-plain", "aes", "xts-plain", 1 },
{ "aes-xts-plain64", "aes", "xts-plain64", 1 },
{ "aes-cbc-plain", "aes", "cbc-plain", 1 },
{ "aes-cbc-plain64", "aes", "cbc-plain64", 1 },
{ "aes-cbc-essiv:sha256", "aes", "cbc-essiv:sha256", 1 },
{ "aes", "aes", "cbc-plain", 1 },
{ "twofish", "twofish", "cbc-plain", 1 },
{ "cipher_null", "cipher_null", "ecb", 0 },
{ "null", "cipher_null", "ecb", 0 },
{ "xchacha12,aes-adiantum-plain64", "xchacha12,aes", "adiantum-plain64", 1 },
{ "xchacha20,aes-adiantum-plain64", "xchacha20,aes", "adiantum-plain64", 1 },
{ "aes:64-cbc-lmk", "aes:64", "cbc-lmk", 64 },
{ "des3_ede-cbc-tcw", "des3_ede" ,"cbc-tcw", 1 },
{ "aes-lrw-benbi", "aes","lrw-benbi", 1 },
};
static int test_parse_mode(void)
{
char cipher[MAX_CIPHER_LEN], mode[MAX_CIPHER_LEN];
unsigned int i;
int keys;
printf("MODECONV:");
for (i = 0; i < ARRAY_SIZE(mode_test_vectors); i++) {
if (i && !(i % 8))
printf("\n");
keys = -1;
memset(cipher, 0, sizeof(cipher));
memset(mode, 0, sizeof(mode));
printf("[%s]", mode_test_vectors[i].input ?: "NULL");
if (crypt_parse_name_and_mode(mode_test_vectors[i].input, cipher, &keys, mode) < 0 ||
strcmp(mode_test_vectors[i].cipher, cipher) ||
strcmp(mode_test_vectors[i].mode, mode) ||
mode_test_vectors[i].keys != keys) {
printf("[FAILED (%s / %s / %i)]\n", cipher, mode, keys);
return EXIT_FAILURE;
}
}
printf("[OK]\n");
return EXIT_SUCCESS;
}
/*
* Cryptsetup/dm-crypt/dm-integrity algorithm naming conversion test
*/
struct integrity_test_vector {
bool int_mode; /* non-null if it is supported as integrity mode for LUKS2 */
const char *input;
const char *integrity;
int key_size;
};
static struct integrity_test_vector integrity_test_vectors[] = {
{ true, "aead", "aead", 0 },
{ true, "poly1305", "poly1305", 0 },
{ true, "none", "none", 0 },
{ false, "crc32", "crc32", 0 },
{ true, "hmac-sha1", "hmac(sha1)", 20 },
{ true, "hmac-sha256", "hmac(sha256)", 32 },
{ true, "hmac-sha512", "hmac(sha512)", 64 },
{ true, "cmac-aes", "cmac(aes)", 16 },
{ false, "blake2b-256", "blake2b-256", 0 },
};
static int test_parse_integrity_mode(void)
{
char integrity[MAX_CIPHER_LEN];
unsigned int i;
int key_size;
printf("INTEGRITYCONV:");
for (i = 0; i < ARRAY_SIZE(integrity_test_vectors); i++) {
memset(integrity, 0, sizeof(integrity));
printf("[%s,%i]", integrity_test_vectors[i].input ?: "NULL", integrity_test_vectors[i].key_size);
if (crypt_parse_hash_integrity_mode(integrity_test_vectors[i].input, integrity) < 0 ||
strcmp(integrity_test_vectors[i].integrity, integrity)) {
printf("[FAILED (%s)]\n", integrity);
return EXIT_FAILURE;
}
key_size = -1;
memset(integrity, 0, sizeof(integrity));
if (integrity_test_vectors[i].int_mode &&
(crypt_parse_integrity_mode(integrity_test_vectors[i].input, integrity, &key_size) < 0 ||
strcmp(integrity_test_vectors[i].integrity, integrity) ||
integrity_test_vectors[i].key_size != key_size)) {
printf("[FAILED (%s / %i)]\n", integrity, key_size);
return EXIT_FAILURE;
}
}
printf("[OK]\n");
return EXIT_SUCCESS;
}
/*
* Cryptsetup null cipher bypass algorithm name
*/
struct null_test_vector {
const char *cipher;
bool ok;
};
static struct null_test_vector null_test_vectors[] = {
{ "cipher_null-ecb", true },
{ "cipher_null", true },
{ "null", true },
{ "cipher-null", false },
{ "aes-ecb", false },
{ NULL, false },
};
static int test_cipher_null(void)
{
unsigned int i;
printf("NULLCONV:");
for (i = 0; i < ARRAY_SIZE(null_test_vectors); i++) {
printf("[%s]", null_test_vectors[i].cipher ?: "NULL");
if (crypt_is_cipher_null(null_test_vectors[i].cipher) !=
null_test_vectors[i].ok) {
printf("[FAILED]\n");
return EXIT_FAILURE;
}
}
printf("[OK]\n");
return EXIT_SUCCESS;
}
struct hex_test_vector {
const char *hex;
const char *bytes;
ssize_t bytes_size;
bool ok;
};
static struct hex_test_vector hex_test_vectors[] = {
{ "0000000000000000", "\x00\x00\x00\x00\x00\x00\x00\x00", 8, true },
{ "abcdef0123456789", "\xab\xcd\xef\x01\x23\x45\x67\x89", 8, true },
{ "aBCDef0123456789", "\xab\xcd\xef\x01\x23\x45\x67\x89", 8, true },
{ "ff", "\xff", 1, true },
{ "f", NULL , 1, false },
{ "a-cde", NULL, 2, false },
{ "FAKE", NULL, 2, false },
{ "\x01\x02\xff", NULL, 3, false },
{ NULL, NULL, 1, false },
{ "fff", NULL, 2, false },
{ "fg", NULL, 1, false },
};
/*
* Hexa conversion test (also should be constant time)
*/
static int test_hex_conversion(void)
{
char *bytes, *hex;
ssize_t len;
unsigned int i;
printf("HEXCONV:");
for (i = 0; i < ARRAY_SIZE(hex_test_vectors); i++) {
bytes = NULL;
hex = NULL;
if (hex_test_vectors[i].hex && *hex_test_vectors[i].hex >= '0')
printf("[%s]", hex_test_vectors[i].hex);
else
printf("[INV:%i]", i);
len = crypt_hex_to_bytes(hex_test_vectors[i].hex, &bytes, 1);
if ((hex_test_vectors[i].ok && len != hex_test_vectors[i].bytes_size) ||
(!hex_test_vectors[i].ok && len >= 0)) {
printf("[FAILED]\n");
crypt_safe_free(bytes);
return EXIT_FAILURE;
}
crypt_safe_free(bytes);
hex = crypt_bytes_to_hex(hex_test_vectors[i].bytes_size, hex_test_vectors[i].bytes);
if ((hex_test_vectors[i].ok && strcasecmp(hex, hex_test_vectors[i].hex)) ||
(!hex_test_vectors[i].ok && hex)) {
printf("[FAILED]\n");
crypt_safe_free(hex);
return EXIT_FAILURE;
}
crypt_safe_free(hex);
}
printf("[OK]\n");
return EXIT_SUCCESS;
}
static void __attribute__((noreturn)) exit_test(const char *msg, int r)
{
if (msg)
printf("%s\n", msg);
exit(r);
}
int main(__attribute__ ((unused)) int argc, __attribute__ ((unused))char *argv[])
{
setvbuf(stdout, NULL, _IONBF, 0);
#ifndef NO_CRYPTSETUP_PATH
if (getenv("CRYPTSETUP_PATH")) {
printf("Cannot run this test with CRYPTSETUP_PATH set.\n");
exit(77);
}
#endif
if (test_parse_mode())
exit_test("Parse mode test failed.", EXIT_FAILURE);
if (test_parse_integrity_mode())
exit_test("Parse integrity mode test failed.", EXIT_FAILURE);
if (test_cipher_null())
exit_test("CIPHER null test failed.", EXIT_FAILURE);
if (test_hex_conversion())
exit_test("HEX conversion test failed.", EXIT_FAILURE);
exit_test(NULL, EXIT_SUCCESS);
}
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