libtomcrypt/mem.c
2010-06-16 12:37:53 +02:00

20 lines
340 B
C

#include "mycrypt.h"
void zeromem(void *dst, size_t len)
{
unsigned char *mem = (unsigned char *)dst;
_ARGCHK(dst != NULL);
while (len-- > 0)
*mem++ = 0;
}
void burn_stack(unsigned long len)
{
unsigned char buf[32];
zeromem(buf, sizeof(buf));
if (len > (unsigned long)sizeof(buf))
burn_stack(len - sizeof(buf));
}