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Diffstat (limited to 'lib/crypto/CipherDescription.h')
| -rw-r--r-- | lib/crypto/CipherDescription.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/lib/crypto/CipherDescription.h b/lib/crypto/CipherDescription.h new file mode 100644 index 00000000..3f90d080 --- /dev/null +++ b/lib/crypto/CipherDescription.h @@ -0,0 +1,97 @@ +// distribution boxbackup-0.10 (svn version: 494) +// +// 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 + |