hardened_malloc/random.h
2018-08-23 16:36:57 -04:00

20 lines
477 B
C

#ifndef RANDOM_H
#define RANDOM_H
#include <stdint.h>
#define RANDOM_CACHE_SIZE 4096
struct random_state {
size_t index;
uint8_t cache[RANDOM_CACHE_SIZE];
};
void get_random_seed(void *buf, size_t size);
void random_state_init(struct random_state *state);
void get_random_bytes(struct random_state *state, void *buf, size_t size);
size_t get_random_size(struct random_state *state);
size_t get_random_size_uniform(struct random_state *state, size_t bound);
#endif