Arduino Cryptography Library
 All Classes Files Functions Variables Enumerations Enumerator Pages
NoiseSource.cpp
1 /*
2  * Copyright (C) 2015 Southern Storm Software, Pty Ltd.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included
12  * in all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20  * DEALINGS IN THE SOFTWARE.
21  */
22 
23 #include "NoiseSource.h"
24 #include "RNG.h"
25 
37 {
38 }
39 
44 {
45 }
46 
96 {
97  // Nothing to do here.
98 }
99 
117 void NoiseSource::output(const uint8_t *data, size_t len, unsigned int credit)
118 {
119  RNG.stir(data, len, credit);
120 }
NoiseSource()
Constructs a new random noise source.
Definition: NoiseSource.cpp:36
virtual void added()
Called when the noise source is added to RNG with RNG.addNoiseSource().
Definition: NoiseSource.cpp:95
virtual void output(const uint8_t *data, size_t len, unsigned int credit)
Called from subclasses to output noise to the global random number pool.
virtual ~NoiseSource()
Destroys this random noise source.
Definition: NoiseSource.cpp:43
void stir(const uint8_t *data, size_t len, unsigned int credit=0)
Stirs additional entropy data into the random pool.
Definition: RNG.cpp:693