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/**
* Copyright (C) 2017 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/bson/bsonmisc.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/crypto/sha256_block.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
ConstDataRange makeTestItem(StringData sd) {
return ConstDataRange(sd.rawData(), sd.size());
}
// SHA-256 test vectors from tom crypt
const struct {
std::initializer_list<ConstDataRange> msg;
SHA256Block hash;
} sha256Tests[] = {
{{makeTestItem("abc")},
SHA256Block::HashType{0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea, 0x41, 0x41, 0x40,
0xde, 0x5d, 0xae, 0x22, 0x23, 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17,
0x7a, 0x9c, 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad}},
{{makeTestItem("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq")},
SHA256Block::HashType{0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8, 0xe5, 0xc0, 0x26,
0x93, 0x0c, 0x3e, 0x60, 0x39, 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff,
0x21, 0x67, 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1}},
// A variation on the above to test digesting multiple parts
{{makeTestItem("abcdbcdecdefdefgefghfghi"), makeTestItem("ghijhijkijkljklmklmnlmnomnopnopq")},
SHA256Block::HashType{0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8, 0xe5, 0xc0, 0x26,
0x93, 0x0c, 0x3e, 0x60, 0x39, 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff,
0x21, 0x67, 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1}}};
TEST(CryptoVectors, SHA256) {
size_t numTests = sizeof(sha256Tests) / sizeof(sha256Tests[0]);
for (size_t i = 0; i < numTests; i++) {
SHA256Block result = SHA256Block::computeHash(sha256Tests[i].msg);
ASSERT(sha256Tests[i].hash == result) << "Failed SHA256 iteration " << i;
}
}
TEST(SHA256Block, BinDataRoundTrip) {
SHA256Block::HashType rawHash;
rawHash.fill(0);
for (size_t i = 0; i < rawHash.size(); i++) {
rawHash[i] = i;
}
SHA256Block testHash(rawHash);
BSONObjBuilder builder;
testHash.appendAsBinData(builder, "hash");
auto newObj = builder.done();
auto hashElem = newObj["hash"];
ASSERT_EQ(BinData, hashElem.type());
ASSERT_EQ(BinDataGeneral, hashElem.binDataType());
int binLen = 0;
auto rawBinData = hashElem.binData(binLen);
ASSERT_EQ(SHA256Block::kHashLength, static_cast<size_t>(binLen));
auto newHashStatus =
SHA256Block::fromBinData(BSONBinData(rawBinData, binLen, hashElem.binDataType()));
ASSERT_OK(newHashStatus.getStatus());
ASSERT_TRUE(testHash == newHashStatus.getValue());
}
TEST(SHA256Block, CanOnlyConstructFromBinGeneral) {
std::string dummy(SHA256Block::kHashLength, 'x');
auto newHashStatus =
SHA256Block::fromBinData(BSONBinData(dummy.c_str(), dummy.size(), newUUID));
ASSERT_EQ(ErrorCodes::UnsupportedFormat, newHashStatus.getStatus());
}
TEST(SHA256Block, FromBinDataShouldRegectWrongSize) {
std::string dummy(SHA256Block::kHashLength - 1, 'x');
auto newHashStatus =
SHA256Block::fromBinData(BSONBinData(dummy.c_str(), dummy.size(), BinDataGeneral));
ASSERT_EQ(ErrorCodes::UnsupportedFormat, newHashStatus.getStatus());
}
TEST(SHA256Block, FromBufferShouldRejectWrongLength) {
std::string dummy(SHA256Block::kHashLength - 1, 'x');
auto newHashStatus =
SHA256Block::fromBuffer(reinterpret_cast<const uint8_t*>(dummy.c_str()), dummy.size());
ASSERT_EQ(ErrorCodes::InvalidLength, newHashStatus.getStatus());
}
} // namespace
} // namespace mongo
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