xmss-KAT-generator/zerobytes.c

/*
This code was taken from the SPHINCS reference implementation.
Public domain.
*/

#include "zerobytes.h"

unsigned char *zerobytes(unsigned char *r,unsigned long long n)
{
  volatile unsigned char *p=r;
  while (n--)
    *(p++) = 0;
  return r;
}