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//
// Cipher.cpp
//
// Library: Crypto
// Package: Cipher
// Module: Cipher
//
// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Crypto/Cipher.h"
#include "Poco/Crypto/CryptoStream.h"
#include "Poco/Crypto/CryptoTransform.h"
#include "Poco/Base64Encoder.h"
#include "Poco/Base64Decoder.h"
#include "Poco/HexBinaryEncoder.h"
#include "Poco/HexBinaryDecoder.h"
#include "Poco/StreamCopier.h"
#include "Poco/Exception.h"
#include <sstream>
#include <memory>
namespace Poco {
namespace Crypto {
Cipher::Cipher()
{
}
Cipher::~Cipher()
{
}
std::string Cipher::encryptString(const std::string& str, Encoding encoding)
{
std::istringstream source(str);
std::ostringstream sink;
encrypt(source, sink, encoding);
return sink.str();
}
std::string Cipher::decryptString(const std::string& str, Encoding encoding)
{
std::istringstream source(str);
std::ostringstream sink;
decrypt(source, sink, encoding);
return sink.str();
}
void Cipher::encrypt(std::istream& source, std::ostream& sink, Encoding encoding)
{
CryptoInputStream encryptor(source, createEncryptor());
switch (encoding)
{
case ENC_NONE:
StreamCopier::copyStream(encryptor, sink);
break;
case ENC_BASE64:
case ENC_BASE64_NO_LF:
{
Poco::Base64Encoder encoder(sink);
if (encoding == ENC_BASE64_NO_LF)
{
encoder.rdbuf()->setLineLength(0);
}
StreamCopier::copyStream(encryptor, encoder);
encoder.close();
}
break;
case ENC_BINHEX:
case ENC_BINHEX_NO_LF:
{
Poco::HexBinaryEncoder encoder(sink);
if (encoding == ENC_BINHEX_NO_LF)
{
encoder.rdbuf()->setLineLength(0);
}
StreamCopier::copyStream(encryptor, encoder);
encoder.close();
}
break;
default:
throw Poco::InvalidArgumentException("Invalid argument", "encoding");
}
}
void Cipher::decrypt(std::istream& source, std::ostream& sink, Encoding encoding)
{
CryptoOutputStream decryptor(sink, createDecryptor());
switch (encoding)
{
case ENC_NONE:
StreamCopier::copyStream(source, decryptor);
decryptor.close();
break;
case ENC_BASE64:
case ENC_BASE64_NO_LF:
{
Poco::Base64Decoder decoder(source);
StreamCopier::copyStream(decoder, decryptor);
decryptor.close();
}
break;
case ENC_BINHEX:
case ENC_BINHEX_NO_LF:
{
Poco::HexBinaryDecoder decoder(source);
StreamCopier::copyStream(decoder, decryptor);
decryptor.close();
}
break;
default:
throw Poco::InvalidArgumentException("Invalid argument", "encoding");
}
}
} } // namespace Poco::Crypto
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