sha256.h Source File - ClanLib SDK
Description: sha256.h Source File

sha256.h
1/*
2** ClanLib SDK
3** Copyright (c) 1997-2020 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
34namespace clan
35{
38
39 class DataBuffer;
40 class SHA256_Impl;
41
43 class SHA256
44 {
45 public:
47 SHA256();
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<SHA256_Impl> impl;
83 };
84
86}
clan::DataBuffer
General purpose data buffer.
Definition databuffer.h:42
clan::SHA256::SHA256
SHA256()
Constructs a SHA-256 hash generator.
clan::SHA256::add
void add(const void *data, int size)
Adds data to be hashed.
clan::SHA256::get_hash
void get_hash(unsigned char out_hash[hash_size]) const
Get hash.
clan::SHA256::calculate
void calculate()
Finalize hash calculation.
clan::SHA256::get_hash
std::string get_hash(bool uppercase=false) const
Returns the calculated hash.
clan::SHA256::set_hmac
void set_hmac(const void *key_data, int key_size)
Enable a HMAC based calculation.
clan::SHA256::hash_size
static const int hash_size
Definition sha256.h:49
clan::SHA256::add
void add(const DataBuffer &data)
Add.
clan::SHA256::reset
void reset()
Resets the hash generator.
clan
Definition clanapp.h:36