cdsa/cdsa_utilities/uniformrandom.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 // uniformrandom - uniformly distributed random number operators
  21 //
  22 #ifndef _H_UNIFORMRANDOM
  23 #define _H_UNIFORMRANDOM
  24
  25 #include <Security/utilities.h>
  26
  27
  28 namespace Security {
  29
  30
  31 //
  32 // Uniform binary blob generator.
  33 // This operator deals exclusively in byte arrays.
  34 //
  35 template <class Generator>
  36 class UniformRandomBlobs : public Generator {
  37 public:
  38 #if BUG_GCC
  39     void random(void *data, size_t length) { Generator::random(data, length); }
  40 #else
  41     using Generator::random;
  42 #endif
  43
  44     template <class Object>
  45     void random(Object &obj)    { random(&obj, sizeof(obj)); }
  46
  47     void random(CssmData &data) { random(data.data(), data.length()); }
  48 };
  49
  50
  51 };      // end namespace Security
  52
  53
  54 #endif //_H_UNIFORMRANDOM