grub/kern/crypto.c

/*
 *  GRUB  --  GRand Unified Bootloader
 *  Copyright (C) 1999, 2001, 2002, 2003, 2007, 
 *                2008, 2009   Free Software Foundation, Inc.
 *
 *  GRUB is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  GRUB is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <grub/crypto.h>
#include <grub/misc.h>
#include <grub/mm.h>

gcry_cipher_spec_t *grub_ciphers = NULL;
gcry_md_spec_t *grub_digests = NULL;

/* Based on libgcrypt-1.4.4/src/misc.c.  */
void
grub_burn_stack (grub_size_t size)
{
  char buf[64];

  grub_memset (buf, 0, sizeof (buf));
  if (size > sizeof (buf))
    grub_burn_stack (size - sizeof (buf));
}