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Diffstat (limited to 'tests/test-crypto-afsplit.c')
| -rw-r--r-- | tests/test-crypto-afsplit.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/tests/test-crypto-afsplit.c b/tests/test-crypto-afsplit.c new file mode 100644 index 0000000000..ceaac0a06d --- /dev/null +++ b/tests/test-crypto-afsplit.c @@ -0,0 +1,193 @@ +/* + * 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 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 "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(); +} |