You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.6 KiB
118 lines
3.6 KiB
// Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "paddle/fluid/framework/io/crypto/cipher_utils.h"
|
|
|
|
#include <cryptopp/osrng.h>
|
|
|
|
#include <fstream>
|
|
#include <sstream>
|
|
|
|
#include "paddle/fluid/platform/enforce.h"
|
|
|
|
namespace paddle {
|
|
namespace framework {
|
|
|
|
std::string CipherUtils::GenKey(int length) {
|
|
CryptoPP::AutoSeededRandomPool prng;
|
|
int bit_length = length / 8;
|
|
std::string rng;
|
|
rng.resize(bit_length);
|
|
// CryptoPP::byte key[length];
|
|
prng.GenerateBlock(reinterpret_cast<unsigned char*>(&(rng.at(0))),
|
|
rng.size());
|
|
return rng;
|
|
}
|
|
|
|
std::string CipherUtils::GenKeyToFile(int length, const std::string& filename) {
|
|
CryptoPP::AutoSeededRandomPool prng;
|
|
std::string rng;
|
|
int bit_length = length / 8;
|
|
rng.resize(bit_length);
|
|
// CryptoPP::byte key[length];
|
|
prng.GenerateBlock(reinterpret_cast<unsigned char*>(&(rng.at(0))),
|
|
rng.size());
|
|
std::ofstream fout(filename, std::ios::binary);
|
|
PADDLE_ENFORCE_EQ(fout.is_open(), true,
|
|
paddle::platform::errors::Unavailable(
|
|
"Failed to open file : %s, "
|
|
"make sure input filename is available.",
|
|
filename));
|
|
fout.write(rng.c_str(), rng.size());
|
|
fout.close();
|
|
return rng;
|
|
}
|
|
|
|
std::string CipherUtils::ReadKeyFromFile(const std::string& filename) {
|
|
std::ifstream fin(filename, std::ios::binary);
|
|
std::string ret{std::istreambuf_iterator<char>(fin),
|
|
std::istreambuf_iterator<char>()};
|
|
fin.close();
|
|
return ret;
|
|
}
|
|
|
|
std::unordered_map<std::string, std::string> CipherUtils::LoadConfig(
|
|
const std::string& config_file) {
|
|
std::ifstream fin(config_file);
|
|
PADDLE_ENFORCE_EQ(fin.is_open(), true,
|
|
paddle::platform::errors::Unavailable(
|
|
"Failed to open file : %s, "
|
|
"make sure input filename is available.",
|
|
config_file));
|
|
std::unordered_map<std::string, std::string> ret;
|
|
char c;
|
|
std::string line;
|
|
std::istringstream iss;
|
|
while (std::getline(fin, line)) {
|
|
if (line.at(0) == '#') {
|
|
continue;
|
|
}
|
|
iss.clear();
|
|
iss.str(line);
|
|
std::string key;
|
|
std::string value;
|
|
if (!(iss >> key >> c >> value) && (c == ':')) {
|
|
PADDLE_THROW(paddle::platform::errors::InvalidArgument(
|
|
"Parse config file error, "
|
|
"check the format of configure in file %s.",
|
|
config_file));
|
|
}
|
|
ret.insert({key, value});
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
template <>
|
|
bool CipherUtils::GetValue<bool>(
|
|
const std::unordered_map<std::string, std::string>& config,
|
|
const std::string& key, bool* output) {
|
|
auto itr = config.find(key);
|
|
if (itr == config.end()) {
|
|
return false;
|
|
}
|
|
std::istringstream iss(itr->second);
|
|
*output = false;
|
|
iss >> *output;
|
|
if (iss.fail()) {
|
|
iss.clear();
|
|
iss >> std::boolalpha >> *output;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
const int CipherUtils::AES_DEFAULT_IV_SIZE = 128;
|
|
const int CipherUtils::AES_DEFAULT_TAG_SIZE = 128;
|
|
} // namespace framework
|
|
} // namespace paddle
|