qemu/tests/test-crypto-afsplit.c
Chetan Pant 422c16e7ec crypt: Fix Lesser GPL version number
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.

Signed-off-by: Chetan Pant <chetan4windows@gmail.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-10-29 09:57:37 +00:00

195 lines
5.9 KiB
C

/*
* QEMU Crypto anti-forensic splitter
*
* Copyright (c) 2015-2016 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "crypto/init.h"
#include "crypto/afsplit.h"
typedef struct QCryptoAFSplitTestData QCryptoAFSplitTestData;
struct QCryptoAFSplitTestData {
const char *path;
QCryptoHashAlgorithm hash;
uint32_t stripes;
size_t blocklen;
const uint8_t *key;
const uint8_t *splitkey;
};
static QCryptoAFSplitTestData test_data[] = {
{
.path = "/crypto/afsplit/sha256/5",
.hash = QCRYPTO_HASH_ALG_SHA256,
.stripes = 5,
.blocklen = 32,
.key = (const uint8_t *)
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7"
"\xa8\xa9\xaa\xab\xac\xad\xae\xaf",
.splitkey = (const uint8_t *)
"\xfd\xd2\x73\xb1\x7d\x99\x93\x34"
"\x70\xde\xfa\x07\xc5\xac\x58\xd2"
"\x30\x67\x2f\x1a\x35\x43\x60\x7d"
"\x77\x02\xdb\x62\x3c\xcb\x2c\x33"
"\x48\x08\xb6\xf1\x7c\xa3\x20\xa0"
"\xad\x2d\x4c\xf3\xcd\x18\x6f\x53"
"\xf9\xe8\xe7\x59\x27\x3c\xa9\x54"
"\x61\x87\xb3\xaf\xf6\xf7\x7e\x64"
"\x86\xaa\x89\x7f\x1f\x9f\xdb\x86"
"\xf4\xa2\x16\xff\xa3\x4f\x8c\xa1"
"\x59\xc4\x23\x34\x28\xc4\x77\x71"
"\x83\xd4\xcd\x8e\x89\x1b\xc7\xc5"
"\xae\x4d\xa9\xcd\xc9\x72\x85\x70"
"\x13\x68\x52\x83\xfc\xb8\x11\x72"
"\xba\x3d\xc6\x4a\x28\xfa\xe2\x86"
"\x7b\x27\xab\x58\xe1\xa4\xca\xf6"
"\x9e\xbc\xfe\x0c\x92\x79\xb3\xec"
"\x1c\x5f\x79\x3b\x0d\x1e\xaa\x1a"
"\x77\x0f\x70\x19\x4b\xc8\x80\xee"
"\x27\x7c\x6e\x4a\x91\x96\x5c\xf4"
},
{
.path = "/crypto/afsplit/sha256/5000",
.hash = QCRYPTO_HASH_ALG_SHA256,
.stripes = 5000,
.blocklen = 16,
.key = (const uint8_t *)
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
},
{
.path = "/crypto/afsplit/sha1/1000",
.hash = QCRYPTO_HASH_ALG_SHA1,
.stripes = 1000,
.blocklen = 32,
.key = (const uint8_t *)
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7"
"\xa8\xa9\xaa\xab\xac\xad\xae\xaf",
},
{
.path = "/crypto/afsplit/sha256/big",
.hash = QCRYPTO_HASH_ALG_SHA256,
.stripes = 1000,
.blocklen = 64,
.key = (const uint8_t *)
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f",
},
};
static inline char hex(int i)
{
if (i < 10) {
return '0' + i;
}
return 'a' + (i - 10);
}
static char *hex_string(const uint8_t *bytes,
size_t len)
{
char *hexstr = g_new0(char, len * 2 + 1);
size_t i;
for (i = 0; i < len; i++) {
hexstr[i * 2] = hex((bytes[i] >> 4) & 0xf);
hexstr[i * 2 + 1] = hex(bytes[i] & 0xf);
}
hexstr[len * 2] = '\0';
return hexstr;
}
static void test_afsplit(const void *opaque)
{
const QCryptoAFSplitTestData *data = opaque;
size_t splitlen = data->blocklen * data->stripes;
uint8_t *splitkey = g_new0(uint8_t, splitlen);
uint8_t *key = g_new0(uint8_t, data->blocklen);
gchar *expect, *actual;
/* First time we round-trip the key */
qcrypto_afsplit_encode(data->hash,
data->blocklen, data->stripes,
data->key, splitkey,
&error_abort);
qcrypto_afsplit_decode(data->hash,
data->blocklen, data->stripes,
splitkey, key,
&error_abort);
expect = hex_string(data->key, data->blocklen);
actual = hex_string(key, data->blocklen);
g_assert_cmpstr(actual, ==, expect);
g_free(actual);
g_free(expect);
/* Second time we merely try decoding a previous split */
if (data->splitkey) {
memset(key, 0, data->blocklen);
qcrypto_afsplit_decode(data->hash,
data->blocklen, data->stripes,
data->splitkey, key,
&error_abort);
expect = hex_string(data->key, data->blocklen);
actual = hex_string(key, data->blocklen);
g_assert_cmpstr(actual, ==, expect);
g_free(actual);
g_free(expect);
}
g_free(key);
g_free(splitkey);
}
int main(int argc, char **argv)
{
size_t i;
g_test_init(&argc, &argv, NULL);
g_assert(qcrypto_init(NULL) == 0);
for (i = 0; i < G_N_ELEMENTS(test_data); i++) {
if (!qcrypto_hash_supports(test_data[i].hash)) {
continue;
}
g_test_add_data_func(test_data[i].path, &test_data[i], test_afsplit);
}
return g_test_run();
}