AppleCSP/MiscCSPAlgs/rc5Context.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 /*
  20  * rc5Context.h - glue between BlockCrytpor and ssleay RC5 implementation
  21  * Written by Doug Mitchell 4/3/2001
  22  */
  23 #ifndef _RC5_CONTEXT_H_
  24 #define _RC5_CONTEXT_H_
  25
  26 #include <AppleCSP/BlockCryptor.h>
  27 #include <openssl/rc5.h>
  28
  29 class RC5Context : public BlockCryptor {
  30 public:
  31         RC5Context(AppleCSPSession &session) :
  32                 BlockCryptor(session)   { }
  33         ~RC5Context();
  34
  35         // called by CSPFullPluginSession
  36         void init(const Context &context, bool encoding = true);
  37
  38         // called by BlockCryptor
  39         void encryptBlock(
  40                 const void              *plainText,                     // length implied (one block)
  41                 size_t                  plainTextLen,
  42                 void                    *cipherText,
  43                 size_t                  &cipherTextLen,         // in/out, throws on overflow
  44                 bool                    final);
  45         void decryptBlock(
  46                 const void              *cipherText,            // length implied (one cipher block)
  47                 void                    *plainText,
  48                 size_t                  &plainTextLen,          // in/out, throws on overflow
  49                 bool                    final);
  50
  51 private:
  52         RC5_32_KEY                      rc5Key;
  53
  54 };      /* RC5Context */
  55
  56 #endif //_RC2_CONTEXT_H_