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/**
* (C) 2014 cryptosource GmbH
* (C) 2014 Falko Strenzke fstrenzke@cryptosource.de
*
* Distributed under the terms of the Botan license
*
*/
#ifndef __mce_overbeck_cca2__H_
#define __mce_overbeck_cca2__H_
#include <botan/pk_ops.h>
#include <botan/mceliece_key.h>
#include <botan/mceliece.h>
#include <botan/types.h>
#include <botan/secmem.h>
namespace Botan
{
class BOTAN_DLL McEliece_Overbeck_CCA2_Public_Operation : public PK_Ops::Encryption
{
public:
McEliece_Overbeck_CCA2_Public_Operation(const McEliece_PublicKey& public_key);
size_t max_input_bits() const { return 512; };
secure_vector<byte> encrypt(const byte msg[], size_t msg_len, RandomNumberGenerator&);
private:
McEliece_Public_Operation m_raw_pub_op;
};
class BOTAN_DLL McEliece_Overbeck_CCA2_Private_Operation : public PK_Ops::Decryption
{
public:
McEliece_Overbeck_CCA2_Private_Operation(const McEliece_PrivateKey& mce_key);
size_t max_input_bits() const { return (m_raw_priv_op.max_input_bits()+7)/8*8 + 2*512; };
secure_vector<byte> decrypt(const byte msg[], size_t msg_len);
private:
McEliece_Private_Operation m_raw_priv_op;
};
}
#endif /* h-guard */
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