#ifndef UTIL_H
#define UTIL_H

#include <stdint.h>
#include <sys/types.h>

int bin2hex(char *hex, size_t hexsize, const uint8_t *bin, size_t binlen);
int hex2bin(uint8_t *bin, size_t binsize, const char *hex, size_t hexlen);

void randombytes(uint8_t *buf, uint64_t n);
void memzero(void *ptr, size_t num);

#endif /* end of include guard: UTIL_H */