sha512_256.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2016 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Mark Page
27 */
28 
29 
30 #pragma once
31 
32 #include <memory>
33 
34 namespace clan
35 {
38 
39  class DataBuffer;
40  class SHA512_Impl;
41 
43  class SHA512_256
44  {
45  public:
47  SHA512_256();
48 
49  static const int hash_size = 32;
50 
52  std::string get_hash(bool uppercase = false) const;
53 
57  void get_hash(unsigned char out_hash[hash_size]) const;
58 
60  void reset();
61 
68  void set_hmac(const void *key_data, int key_size);
69 
71  void add(const void *data, int size);
72 
76  void add(const DataBuffer &data);
77 
79  void calculate();
80 
81  private:
82  std::shared_ptr<SHA512_Impl> impl; // Uses SHA512 implementation
83  };
84 
86 }
Definition: clanapp.h:35
void calculate()
Finalize hash calculation.
void add(const void *data, int size)
Adds data to be hashed.
SHA512_256()
Constructs a SHA-512_256 hash generator.
SHA-512_256 hash function class.
Definition: sha512_256.h:43
static const int hash_size
Definition: sha512_256.h:49
std::string get_hash(bool uppercase=false) const
Returns the calculated hash.
General purpose data buffer.
Definition: databuffer.h:41
void set_hmac(const void *key_data, int key_size)
Enable a HMAC based calculation.
void reset()
Resets the hash generator.