Botan  1.10.9
emsa2.h
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1 /*
2 * EMSA2
3 * (C) 1999-2007 Jack Lloyd
4 *
5 * Distributed under the terms of the Botan license
6 */
7 
8 #ifndef BOTAN_EMSA2_H__
9 #define BOTAN_EMSA2_H__
10 
11 #include <botan/emsa.h>
12 #include <botan/hash.h>
13 
14 namespace Botan {
15 
16 /**
17 * EMSA2 from IEEE 1363
18 * Useful for Rabin-Williams
19 */
20 class BOTAN_DLL EMSA2 : public EMSA
21  {
22  public:
23  /**
24  * @param hash the hash object to use
25  */
26  EMSA2(HashFunction* hash);
27  ~EMSA2() { delete hash; }
28  private:
29  void update(const byte[], size_t);
30  SecureVector<byte> raw_data();
31 
32  SecureVector<byte> encoding_of(const MemoryRegion<byte>&, size_t,
34 
35  bool verify(const MemoryRegion<byte>&, const MemoryRegion<byte>&,
36  size_t);
37 
38  SecureVector<byte> empty_hash;
39  HashFunction* hash;
40  byte hash_id;
41  };
42 
43 }
44 
45 #endif
unsigned char byte
Definition: types.h:22
RandomNumberGenerator * rng
Definition: global_rng.cpp:165
~EMSA2()
Definition: emsa2.h:27