OSX/libsecurity_apple_csp/lib/rc2Context.h

   1 /*
   2  * Copyright (c) 2000-2001,2011,2014 Apple 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  */
  22 #ifndef _RC2_CONTEXT_H_
  23 #define _RC2_CONTEXT_H_
  24
  25 #include <BlockCryptor.h>
  26 #include <openssl/rc2_legacy.h>
  27
  28 /* RC2 Symmetric encryption context */
  29 class RC2Context : public BlockCryptor {
  30 public:
  31         RC2Context(AppleCSPSession &session) :
  32                 BlockCryptor(session)   { }
  33         ~RC2Context();
  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                 size_t                  cipherTextLen,
  48                 void                    *plainText,
  49                 size_t                  &plainTextLen,          // in/out, throws on overflow
  50                 bool                    final);
  51
  52 private:
  53         RC2_KEY                         rc2Key;
  54
  55 };      /* RC2Context */
  56
  57 #endif //_RC2_CONTEXT_H_