1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/*
* Additive Lagged Fibonacci Generator (ALFG) Implementation definitions
* Author: Fabian Druschke
* Date: 2024-03-13
*
* This is an implementation of the Additive Lagged Fibonacci Generator (ALFG),
* a pseudorandom number generator known for its simplicity and good statistical properties
* for a wide range of applications. ALFGs are particularly noted for their long periods
* and efficiency in generating sequences of random numbers. However, like many other PRNGs,
* they are not suitable for cryptographic purposes due to their predictability.
*
* As the author of this implementation, I, Fabian Druschke, hereby release this work into
* the public domain. I dedicate any and all copyright interest in this work to the public
* domain, making it free to use for anyone for any purpose without any conditions, unless
* such conditions are required by law.
*
* This software is provided "as is", without warranty of any kind, express or implied,
* including but not limited to the warranties of merchantability, fitness for a particular
* purpose, and noninfringement. In no event shall the authors be liable for any claim,
* damages, or other liability, whether in an action of contract, tort, or otherwise, arising
* from, out of, or in connection with the software or the use or other dealings in the software.
*
* Note: This implementation is designed for non-cryptographic applications and should not be
* used where cryptographic security is required.
*/
#ifndef ADD_LAGG_FIBONACCI_PRNG_H
#define ADD_LAGG_FIBONACCI_PRNG_H
#include <stdint.h>
// State definition for the Additive Lagged Fibonacci Generator
typedef struct
{
uint64_t s[64]; // State array
unsigned int index; // Current index in the state array
} add_lagg_fibonacci_state_t;
// Function prototypes
void add_lagg_fibonacci_init( add_lagg_fibonacci_state_t* state, uint64_t init_key[], unsigned long key_length );
void add_lagg_fibonacci_genrand_uint256_to_buf( add_lagg_fibonacci_state_t* state, unsigned char* bufpos );
#endif // ADD_LAGG_FIBONACCI_PRNG_H
|
