libsecurity_apple_csp/lib/rc2Context.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  * rc2Context.h - glue between BlockCrytpor and ssleay RC2 implementation
  21  * Written by Doug Mitchell 4/3/2001
  22  */
  23 #ifndef _RC2_CONTEXT_H_
  24 #define _RC2_CONTEXT_H_
  25
  26 #include <BlockCryptor.h>
  27 #include <openssl/rc2.h>
  28
  29 /* RC2 Symmetric encryption context */
  30 class RC2Context : public BlockCryptor {
  31 public:
  32         RC2Context(AppleCSPSession &session) :
  33                 BlockCryptor(session)   { }
  34         ~RC2Context();
  35
  36         // called by CSPFullPluginSession
  37         void init(const Context &context, bool encoding = true);
  38
  39         // called by BlockCryptor
  40         void encryptBlock(
  41                 const void              *plainText,                     // length implied (one block)
  42                 size_t                  plainTextLen,
  43                 void                    *cipherText,
  44                 size_t                  &cipherTextLen,         // in/out, throws on overflow
  45                 bool                    final);
  46         void decryptBlock(
  47                 const void              *cipherText,            // length implied (one cipher block)
  48                 size_t                  cipherTextLen,
  49                 void                    *plainText,
  50                 size_t                  &plainTextLen,          // in/out, throws on overflow
  51                 bool                    final);
  52
  53 private:
  54         RC2_KEY                         rc2Key;
  55
  56 };      /* RC2Context */
  57
  58 #endif //_RC2_CONTEXT_H_