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/**
* Copyright (C) 2019-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kDefault
#include "mongo/platform/basic.h"
#include "mongo/crypto/symmetric_crypto.h"
#include <memory>
#include "mongo/base/data_cursor.h"
#include "mongo/base/init.h"
#include "mongo/base/status.h"
#include "mongo/crypto/symmetric_key.h"
#include "mongo/platform/random.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/log.h"
#include "mongo/util/net/ssl_manager.h"
#include "mongo/util/str.h"
namespace mongo {
namespace crypto {
MONGO_INITIALIZER(CreateKeyEntropySource)(InitializerContext* context) {
return Status::OK();
}
size_t aesGetIVSize(crypto::aesMode mode) {
switch (mode) {
case crypto::aesMode::cbc:
return crypto::aesCBCIVSize;
case crypto::aesMode::gcm:
return crypto::aesGCMIVSize;
default:
fassertFailed(4053);
}
}
aesMode getCipherModeFromString(const std::string& mode) {
if (mode == aes256CBCName) {
return aesMode::cbc;
} else if (mode == aes256GCMName) {
return aesMode::gcm;
} else {
MONGO_UNREACHABLE;
}
}
std::string getStringFromCipherMode(aesMode mode) {
if (mode == aesMode::cbc) {
return aes256CBCName;
} else if (mode == aesMode::gcm) {
return aes256GCMName;
} else {
MONGO_UNREACHABLE;
}
}
SymmetricKey aesGenerate(size_t keySize, SymmetricKeyId keyId) {
invariant(keySize == sym256KeySize);
SecureVector<uint8_t> key(keySize);
SecureRandom().fill(key->data(), key->size());
return SymmetricKey(std::move(key), aesAlgorithm, std::move(keyId));
}
} // namespace crypto
} // namespace mongo
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