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/*
* Copyright (c) 2010 SURFnet bv
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*****************************************************************************
AsymmetricAlgorithm.h
Base class for asymmetric algorithm classes
*****************************************************************************/
#ifndef _SOFTHSM_V2_ASYMMETRICALGORITHM_H
#define _SOFTHSM_V2_ASYMMETRICALGORITHM_H
#include "config.h"
#include "AsymmetricKeyPair.h"
#include "AsymmetricParameters.h"
#include "HashAlgorithm.h"
#include "PublicKey.h"
#include "PrivateKey.h"
#include "RNG.h"
#include "SymmetricKey.h"
struct AsymAlgo
{
enum Type
{
Unknown,
RSA,
DSA,
DH,
ECDH,
ECDSA,
GOST
};
};
struct AsymMech
{
enum Type
{
Unknown,
RSA,
RSA_MD5_PKCS,
RSA_PKCS,
RSA_PKCS_OAEP,
RSA_SHA1_PKCS,
RSA_SHA224_PKCS,
RSA_SHA256_PKCS,
RSA_SHA384_PKCS,
RSA_SHA512_PKCS,
RSA_PKCS_PSS,
RSA_SHA1_PKCS_PSS,
RSA_SHA224_PKCS_PSS,
RSA_SHA256_PKCS_PSS,
RSA_SHA384_PKCS_PSS,
RSA_SHA512_PKCS_PSS,
RSA_SSL,
DSA,
DSA_SHA1,
DSA_SHA224,
DSA_SHA256,
DSA_SHA384,
DSA_SHA512,
ECDSA,
GOST,
GOST_GOST
};
};
struct AsymRSAMGF
{
enum Type
{
Unknown,
MGF1_SHA1,
MGF1_SHA224,
MGF1_SHA256,
MGF1_SHA384,
MGF1_SHA512
};
};
struct RSA_PKCS_PSS_PARAMS
{
HashAlgo::Type hashAlg;
AsymRSAMGF::Type mgf;
size_t sLen;
};
class AsymmetricAlgorithm
{
public:
// Base constructors
AsymmetricAlgorithm();
// Destructor
virtual ~AsymmetricAlgorithm() { }
// Signing functions
virtual bool sign(PrivateKey* privateKey, const ByteString& dataToSign, ByteString& signature, const AsymMech::Type mechanism, const void* param = NULL, const size_t paramLen = 0);
virtual bool signInit(PrivateKey* privateKey, const AsymMech::Type mechanism, const void* param = NULL, const size_t paramLen = 0);
virtual bool signUpdate(const ByteString& dataToSign);
virtual bool signFinal(ByteString& signature);
// Verification functions
virtual bool verify(PublicKey* publicKey, const ByteString& originalData, const ByteString& signature, const AsymMech::Type mechanism, const void* param = NULL, const size_t paramLen = 0);
virtual bool verifyInit(PublicKey* publicKey, const AsymMech::Type mechanism, const void* param = NULL, const size_t paramLen = 0);
virtual bool verifyUpdate(const ByteString& originalData);
virtual bool verifyFinal(const ByteString& signature);
// Encryption functions
virtual bool encrypt(PublicKey* publicKey, const ByteString& data, ByteString& encryptedData, const AsymMech::Type padding) = 0;
// Decryption functions
virtual bool decrypt(PrivateKey* privateKey, const ByteString& encryptedData, ByteString& data, const AsymMech::Type padding) = 0;
// Wrap/Unwrap keys
bool wrapKey(PublicKey* publicKey, const ByteString& data, ByteString& encryptedData, const AsymMech::Type padding);
bool unwrapKey(PrivateKey* privateKey, const ByteString& encryptedData, ByteString& data, const AsymMech::Type padding);
// Key factory
virtual bool generateKeyPair(AsymmetricKeyPair** ppKeyPair, AsymmetricParameters* parameters, RNG* rng = NULL) = 0;
virtual unsigned long getMinKeySize() = 0;
virtual unsigned long getMaxKeySize() = 0;
virtual bool generateParameters(AsymmetricParameters** ppParams, void* parameters = NULL, RNG* rng = NULL);
virtual bool deriveKey(SymmetricKey **ppSymmetricKey, PublicKey* publicKey, PrivateKey* privateKey);
virtual bool reconstructKeyPair(AsymmetricKeyPair** ppKeyPair, ByteString& serialisedData) = 0;
virtual bool reconstructPublicKey(PublicKey** ppPublicKey, ByteString& serialisedData) = 0;
virtual bool reconstructPrivateKey(PrivateKey** ppPrivateKey, ByteString& serialisedData) = 0;
virtual bool reconstructParameters(AsymmetricParameters** ppParams, ByteString& serialisedData);
virtual PublicKey* newPublicKey() = 0;
virtual PrivateKey* newPrivateKey() = 0;
virtual AsymmetricParameters* newParameters();
// Key recycling -- override these functions in a derived class if you need to perform specific cleanup
virtual void recycleKeyPair(AsymmetricKeyPair* toRecycle);
virtual void recycleParameters(AsymmetricParameters* toRecycle);
virtual void recyclePublicKey(PublicKey* toRecycle);
virtual void recyclePrivateKey(PrivateKey* toRecycle);
virtual void recycleSymmetricKey(SymmetricKey* toRecycle);
protected:
PublicKey* currentPublicKey;
PrivateKey* currentPrivateKey;
AsymMech::Type currentMechanism;
AsymMech::Type currentPadding;
private:
enum
{
NONE,
SIGN,
VERIFY
}
currentOperation;
bool isWrappingMech(AsymMech::Type padding);
};
#endif // !_SOFTHSM_V2_ASYMMETRICALGORITHM_H
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