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61 lines
2.1 KiB
61 lines
2.1 KiB
// Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/fluid/framework/io/crypto/cipher.h"
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#include "paddle/fluid/framework/io/crypto/aes_cipher.h"
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#include "paddle/fluid/framework/io/crypto/cipher_utils.h"
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#include "paddle/fluid/platform/enforce.h"
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namespace paddle {
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namespace framework {
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std::shared_ptr<Cipher> CipherFactory::CreateCipher(
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const std::string& config_file) {
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std::string cipher_name;
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int iv_size;
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int tag_size;
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std::unordered_map<std::string, std::string> config;
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if (!config_file.empty()) {
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config = CipherUtils::LoadConfig(config_file);
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CipherUtils::GetValue<std::string>(config, "cipher_name", &cipher_name);
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} else {
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// set default cipher name
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cipher_name = "AES_CTR_NoPadding";
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}
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if (cipher_name.find("AES") != cipher_name.npos) {
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auto ret = std::make_shared<AESCipher>();
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// if not set iv_size, set default value
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if (config_file.empty() ||
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!CipherUtils::GetValue<int>(config, "iv_size", &iv_size)) {
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iv_size = CipherUtils::AES_DEFAULT_IV_SIZE;
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}
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// if not set tag_size, set default value
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if (config_file.empty() ||
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!CipherUtils::GetValue<int>(config, "tag_size", &tag_size)) {
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tag_size = CipherUtils::AES_DEFAULT_IV_SIZE;
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}
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ret->Init(cipher_name, iv_size, tag_size);
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return ret;
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} else {
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PADDLE_THROW(paddle::platform::errors::InvalidArgument(
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"Invalid cipher name is specied. "
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"Please check you have specified valid cipher"
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" name in CryptoProperties."));
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}
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return nullptr;
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}
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} // namespace framework
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} // namespace paddle
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