Files
poco/Crypto_Win/include/Poco/Crypto/RSAKey.h
2015-02-04 19:37:48 +01:00

119 lines
2.8 KiB
C++

//
// RSAKey.h
//
// $Id$
//
// Library: Crypto_Win
// Package: RSA
// Module: RSAKey
//
// Definition of the RSAKey class.
//
// Copyright (c) 2006-2014, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Crypto_RSAKey_INCLUDED
#define Crypto_RSAKey_INCLUDED
#include "Poco/Crypto/Crypto.h"
#include "Poco/Crypto/RSAKeyImpl.h"
namespace Poco {
namespace Crypto {
class X509Certificate;
class Crypto_Win_API RSAKey
/// This class stores an RSA key pair, consisting
/// of private and public key. Storage of the private
/// key is optional.
///
/// If a private key is available, the RSAKey can be
/// used for decrypting data (encrypted with the public key)
/// or computing secure digital signatures.
{
public:
enum KeyLength
{
KL_512 = 512,
KL_1024 = 1024,
KL_2048 = 2048,
KL_4096 = 4096
};
enum Exponent
{
EXP_SMALL = 0,
EXP_LARGE
};
explicit RSAKey(const X509Certificate& cert);
/// Extracts the RSA public key from the given certificate.
RSAKey(KeyLength keyLength, Exponent exp);
/// Creates the RSAKey. Creates a new public/private key pair using the given parameters.
/// Can be used to sign data and verify signatures.
///
/// The Exponent parameter will be ignored and is provided for API compatibility with the
/// OpenSSL implementation only.
RSAKey(const std::string& publicKeyFile, const std::string& privateKeyFile = "", const std::string& privateKeyPassphrase = "");
/// Creates the RSAKey, by reading public and private key from the given files and
/// using the given passphrase for the private key. Can only by used for signing if
/// a private key is available.
RSAKey(std::istream* pPublicKeyStream, std::istream* pPrivateKeyStream = 0, const std::string& privateKeyPassphrase = "");
/// Creates the RSAKey. Can only by used for signing if pPrivateKeyStream
/// is not null.
~RSAKey();
/// Destroys the RSAKey.
int size() const;
/// Returns the RSA modulus size.
void save(const std::string& publicKeyFile, const std::string& privateKeyFile = "", const std::string& privateKeyPassphrase = "");
/// Exports the public and private keys to the given files.
///
/// If an empty filename is specified, the corresponding key
/// is not exported.
void save(std::ostream* pPublicKeyStream, std::ostream* pPrivateKeyStream = 0, const std::string& privateKeyPassphrase = "");
/// Exports the public and private key to the given streams.
///
/// If a null pointer is passed for a stream, the corresponding
/// key is not exported.
RSAKeyImpl::Ptr impl() const;
/// Returns the impl object.
const std::string& name() const;
/// Returns "rsa"
private:
RSAKeyImpl::Ptr _pImpl;
};
//
// inlines
//
inline RSAKeyImpl::Ptr RSAKey::impl() const
{
return _pImpl;
}
} } // namespace Poco::Crypto
#endif // Crypto_RSAKey_INCLUDED