#include "alg-util.h"

void xor_block(const void *iv1, const void *iv2, void *ov, int len)
{
 const unsigned char *i1;
 const unsigned char *i2;
 unsigned char *o;

 i1 = iv1;
 i2 = iv2;
 o = ov;
 for (;len>0;len--) *o++ = *i1++ ^ *i2++;
}