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// distribution boxbackup-0.11rc1 (svn version: 2023_2024)
//
// Copyright (c) 2003 - 2006
// Ben Summers and contributors. 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.
// 3. All use of this software and associated advertising materials must
// display the following acknowledgment:
// This product includes software developed by Ben Summers.
// 4. The names of the Authors may not be used to endorse or promote
// products derived from this software without specific prior written
// permission.
//
// [Where legally impermissible the Authors do not disclaim liability for
// direct physical injury or death caused solely by defects in the software
// unless it is modified by a third party.]
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
//
//
//
// --------------------------------------------------------------------------
//
// File
// Name: CipherDescription.h
// Purpose: Pure virtual base class for describing ciphers
// Created: 1/12/03
//
// --------------------------------------------------------------------------
#ifndef CIPHERDESCRIPTION__H
#define CIPHERDESCRIPTION__H
#ifndef BOX_LIB_CRYPTO_OPENSSL_HEADERS_INCLUDED_TRUE
#define BOX_LIB_CRYPTO_OPENSSL_HEADERS_INCLUDED_FALSE
class EVP_CIPHER;
class EVP_CIPHER_CTX;
#endif
// --------------------------------------------------------------------------
//
// Class
// Name: CipherDescription
// Purpose: Describes a cipher
// Created: 1/12/03
//
// --------------------------------------------------------------------------
class CipherDescription
{
public:
CipherDescription();
CipherDescription(const CipherDescription &rToCopy);
virtual ~CipherDescription();
CipherDescription &operator=(const CipherDescription &rToCopy);
// Return OpenSSL cipher object
virtual const EVP_CIPHER *GetCipher() const = 0;
// Setup any other parameters
virtual void SetupParameters(EVP_CIPHER_CTX *pCipherContext) const = 0;
// Mode parameter for cipher -- used in derived classes
typedef enum
{
Mode_ECB = 0,
Mode_CBC = 1,
Mode_CFB = 2,
Mode_OFB = 3
} CipherMode;
#ifdef HAVE_OLD_SSL
// For the old version of OpenSSL, we need to be able to store cipher descriptions.
virtual CipherDescription *Clone() const = 0;
// And to be able to store new IVs
virtual void SetIV(const void *pIV) = 0;
#endif
};
#endif // CIPHERDESCRIPTION__H
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