lib/libUPnP/Neptune/Source/Core/NptDigest.h

   1 /*****************************************************************
   2 |
   3 |   Neptune - Message Digests
   4 |
   5 | Copyright (c) 2002-2010, Axiomatic Systems, LLC.
   6 | All rights reserved.
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  11 |       notice, this list of conditions and the following disclaimer.
  12 |     * Redistributions in binary form must reproduce the above copyright
  13 |       notice, this list of conditions and the following disclaimer in the
  14 |       documentation and/or other materials provided with the distribution.
  15 |     * Neither the name of Axiomatic Systems nor the
  16 |       names of its contributors may be used to endorse or promote products
  17 |       derived from this software without specific prior written permission.
  18 |
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  21 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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  30  ****************************************************************/
  31
  32 #ifndef _NPT_DIGEST_H_
  33 #define _NPT_DIGEST_H_
  34
  35 /*----------------------------------------------------------------------
  36 |   includes
  37 +---------------------------------------------------------------------*/
  38 #include "NptTypes.h"
  39 #include "NptDataBuffer.h"
  40
  41 /*----------------------------------------------------------------------
  42 |   NPT_Digest
  43 +---------------------------------------------------------------------*/
  44 class NPT_Digest {
  45 public:
  46     // types
  47     typedef enum {
  48         ALGORITHM_SHA1,
  49         ALGORITHM_SHA256,
  50         ALGORITHM_MD5
  51     } Algorithm;
  52
  53     // factory
  54     static NPT_Result Create(Algorithm algorithm, NPT_Digest*& digest);
  55
  56     // methods
  57     virtual             ~NPT_Digest() {}
  58     virtual unsigned int GetSize() = 0;
  59     virtual NPT_Result   Update(const NPT_UInt8* data, NPT_Size data_size) = 0;
  60     virtual NPT_Result   GetDigest(NPT_DataBuffer& digest) = 0;
  61
  62 protected:
  63     NPT_Digest() {} // don't instantiate directly
  64 };
  65
  66 class NPT_Hmac {
  67 public:
  68     static NPT_Result Create(NPT_Digest::Algorithm algorithm,
  69                              const NPT_UInt8*      key,
  70                              NPT_Size              key_size,
  71                              NPT_Digest*&          digest);
  72
  73 private:
  74     // methods
  75     NPT_Hmac() {} // don't instantiate
  76 };
  77
  78 #endif // _NPT_DIGEST_H_