Botan  1.10.9
hash.h
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1 /*
2 * Hash Function Base Class
3 * (C) 1999-2008 Jack Lloyd
4 *
5 * Distributed under the terms of the Botan license
6 */
7 
8 #ifndef BOTAN_HASH_FUNCTION_BASE_CLASS_H__
9 #define BOTAN_HASH_FUNCTION_BASE_CLASS_H__
10 
11 #include <botan/buf_comp.h>
12 #include <botan/algo_base.h>
13 #include <string>
14 
15 namespace Botan {
16 
17 /**
18 * This class represents hash function (message digest) objects
19 */
20 class BOTAN_DLL HashFunction : public Buffered_Computation,
21  public Algorithm
22  {
23  public:
24  /**
25  * Get a new object representing the same algorithm as *this
26  */
27  virtual HashFunction* clone() const = 0;
28 
29  /**
30  * The hash block size as defined for this algorithm
31  */
32  virtual size_t hash_block_size() const { return 0; }
33  };
34 
35 }
36 
37 #endif
virtual size_t hash_block_size() const
Definition: hash.h:32