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/*
* Copyright (c) 2017-2021 Cisco and/or its affiliates.
* 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.
*/
#pragma once
#include <hicn/transport/auth/common.h>
#include <hicn/transport/errors/errors.h>
extern "C" {
#include <parc/security/parc_PublicKeySigner.h>
#include <parc/security/parc_Security.h>
#include <parc/security/parc_Signer.h>
#include <parc/security/parc_SymmetricKeySigner.h>
}
namespace transport {
namespace auth {
class Signer {
// The base class from which all signer classes derive.
public:
Signer();
Signer(PARCSigner *signer);
virtual ~Signer();
// Sign a packet.
virtual void signPacket(PacketPtr packet);
// Set the signer object used to sign packets.
void setSigner(PARCSigner *signer);
// Return the signature size.
size_t getSignatureSize() const;
// Return the crypto suite associated to the signer.
CryptoSuite getCryptoSuite() const;
// Return the hash algorithm associated to the signer.
CryptoHashType getCryptoHashType() const;
// Return the PARC signer.
PARCSigner *getParcSigner() const;
// Return the PARC key store containing the signer key.
PARCKeyStore *getParcKeyStore() const;
protected:
PARCSigner *signer_;
PARCKeyId *key_id_;
};
class AsymmetricSigner : public Signer {
// This class uses asymmetric verification to sign packets. The public key
// must be given from a PARCKeyStore.
public:
AsymmetricSigner() = default;
AsymmetricSigner(PARCSigner *signer) : Signer(signer){};
// Construct an AsymmetricSigner from a key store and a given crypto suite.
AsymmetricSigner(CryptoSuite suite, PARCKeyStore *key_store);
};
class SymmetricSigner : public Signer {
// This class uses symmetric verification to sign packets. The symmetric
// key is derived from a passphrase.
public:
SymmetricSigner() = default;
SymmetricSigner(PARCSigner *signer) : Signer(signer){};
// Construct an SymmetricSigner from a key store and a given crypto suite.
SymmetricSigner(CryptoSuite suite, PARCKeyStore *key_store);
// Construct an AsymmetricSigner from a passphrase and a given crypto suite.
SymmetricSigner(CryptoSuite suite, const std::string &passphrase);
};
} // namespace auth
} // namespace transport
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