Botan: src/rng/rng.cpp Source File

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rng.cpp
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1 /*
2 * Random Number Generator Base
3 * (C) 1999-2008 Jack Lloyd
4 *
5 * Distributed under the terms of the Botan license
6 */
7
8 #include <botan/rng.h>
9
10 #if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
11 #include <botan/auto_rng.h>
12 #endif
13
14 namespace Botan {
15
16 /*
17 * Get a single random byte
18 */
19 byte RandomNumberGenerator::next_byte()
20 {
21 byte out;
22 this->randomize(&out, 1);
23 return out;
24 }
25
26 /*
27 * Create and seed a new RNG object
28 */
29 RandomNumberGenerator* RandomNumberGenerator::make_rng()
30 {
31 #if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
32 return new AutoSeeded_RNG;
33 #endif
34
35 throw Algorithm_Not_Found("RandomNumberGenerator::make_rng - no RNG found");
36 }
37
38 }
Botan::RandomNumberGenerator::randomize
virtual void randomize(byte output[], size_t length)=0
Botan::RandomNumberGenerator
Definition: rng.h:20
Botan::RandomNumberGenerator::make_rng
static RandomNumberGenerator * make_rng()
Definition: rng.cpp:29
Botan::byte
unsigned char byte
Definition: types.h:22
Botan::AutoSeeded_RNG
Definition: auto_rng.h:20
Botan
Definition: algo_base.h:14
Botan::Algorithm_Not_Found
Definition: exceptn.h:109
Botan::RandomNumberGenerator::next_byte
byte next_byte()
Definition: rng.cpp:19