rsa_crypto.h

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#ifndef RSA_CRYPTO_CLASS
#define RSA_CRYPTO_CLASS
 
/*****************************************************************************\
*                                                                             *
*  Name   : RSA public key encryption                                         *
*  Author : Chris Koeritz                                                     *
*                                                                             *
*******************************************************************************
* Copyright (c) 2005-$now By Author.  This program is free software; you can  *
* redistribute it and/or modify it under the terms of the GNU General Public  *
* License as published by the Free Software Foundation; either version 2 of   *
* the License or (at your option) any later version.  This is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/
 
#include <basis/byte_array.h>
#include <basis/contracts.h>
 
// forward.
//struct RSA;
typedef struct rsa_st RSA;
 
namespace crypto {
 
 
class rsa_crypto : public virtual basis::nameable
{
public:
  rsa_crypto(int key_size);
 
  rsa_crypto(const basis::byte_array &key);
 
  rsa_crypto(RSA *key);
 
  rsa_crypto(const rsa_crypto &to_copy);
 
  virtual ~rsa_crypto();
 
  const rsa_crypto &operator = (const rsa_crypto &to_copy);
 
  DEFINE_CLASS_NAME("rsa_crypto");
 
  bool set_key(basis::byte_array &key);
 
  bool set_key(RSA *key);
 
  bool check_key(RSA *key);
 
  bool public_encrypt(const basis::byte_array &source, basis::byte_array &target) const;
 
  bool private_decrypt(const basis::byte_array &source, basis::byte_array &target) const;
 
  bool private_encrypt(const basis::byte_array &source, basis::byte_array &target) const;
 
  bool public_decrypt(const basis::byte_array &source, basis::byte_array &target) const;
 
  bool public_key(basis::byte_array &pubkey) const;
  bool private_key(basis::byte_array &privkey) const;
 
  static RSA *generate_key(int key_size);
 
private:
  RSA *_key;  
};
 
} //namespace.
 
#endif