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/*
* Copyright (C) 2021 The Android Open Source Project
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <string.h>
#include <gtest/gtest.h>
#include <libavb/avb_sha.h>
#include "avb_unittest_util.h"
namespace avb {
/* These smoke tests are intended to check that the cryptographic operations
* conform to the AVB interface and not to check the correctness of the
* cryptograhpy.
*/
TEST(CryptoOpsTest, Sha256) {
AvbSHA256Ctx ctx;
/* Compare with
*
* $ echo -n foobar |sha256sum
* c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2 -
*/
avb_sha256_init(&ctx);
avb_sha256_update(&ctx, (const uint8_t*)"foobar", 6);
EXPECT_EQ("c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2",
mem_to_hexstring(avb_sha256_final(&ctx), AVB_SHA256_DIGEST_SIZE));
}
// Disabled for now because it takes ~30 seconds to run.
TEST(CryptoOpsTest, DISABLED_Sha256Large) {
AvbSHA256Ctx ctx;
/* Also check we this works with greater than 4GiB input. Compare with
*
* $ dd if=/dev/zero bs=1048576 count=4097 |sha256sum
* 829816e339ff597ec3ada4c30fc840d3f2298444169d242952a54bcf3fcd7747 -
*/
const size_t kMebibyte = 1048576;
uint8_t* megabuf;
megabuf = new uint8_t[kMebibyte];
memset((char*)megabuf, '\0', kMebibyte);
avb_sha256_init(&ctx);
for (size_t n = 0; n < 4097; n++) {
avb_sha256_update(&ctx, megabuf, kMebibyte);
}
EXPECT_EQ("829816e339ff597ec3ada4c30fc840d3f2298444169d242952a54bcf3fcd7747",
mem_to_hexstring(avb_sha256_final(&ctx), AVB_SHA256_DIGEST_SIZE));
delete[] megabuf;
}
TEST(CryptoOpsTest, Sha512) {
AvbSHA512Ctx ctx;
/* Compare with
*
* $ echo -n foobar |sha512sum
* 0a50261ebd1a390fed2bf326f2673c145582a6342d523204973d0219337f81616a8069b012587cf5635f6925f1b56c360230c19b273500ee013e030601bf2425
* -
*/
avb_sha512_init(&ctx);
avb_sha512_update(&ctx, (const uint8_t*)"foobar", 6);
EXPECT_EQ(
"0a50261ebd1a390fed2bf326f2673c145582a6342d523204973d0219337f81616a8069b0"
"12587cf5635f6925f1b56c360230c19b273500ee013e030601bf2425",
mem_to_hexstring(avb_sha512_final(&ctx), AVB_SHA512_DIGEST_SIZE));
}
// Disabled for now because it takes ~30 seconds to run.
TEST(CryptoOpsTest, DISABLED_Sha512Large) {
AvbSHA512Ctx ctx;
/* Also check we this works with greater than 4GiB input. Compare with
*
* $ dd if=/dev/zero bs=1048576 count=4097 |sha512sum
* eac1685671cc2060315888746de072398116c0c83b7ee9463f0576e11bfdea9cdd5ddbf291fb3ffc4ee8a1b459c798d9fb9b50b7845e2871c4b1402470aaf4c0
* -
*/
const size_t kMebibyte = 1048576;
uint8_t* megabuf;
megabuf = new uint8_t[kMebibyte];
memset((char*)megabuf, '\0', kMebibyte);
avb_sha512_init(&ctx);
for (size_t n = 0; n < 4097; n++) {
avb_sha512_update(&ctx, megabuf, kMebibyte);
}
EXPECT_EQ(
"eac1685671cc2060315888746de072398116c0c83b7ee9463f0576e11bfdea9cdd5ddbf2"
"91fb3ffc4ee8a1b459c798d9fb9b50b7845e2871c4b1402470aaf4c0",
mem_to_hexstring(avb_sha512_final(&ctx), AVB_SHA512_DIGEST_SIZE));
delete[] megabuf;
}
} // namespace avb
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