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/* $OpenBSD: bn_mod_exp2_mont.c,v 1.1 2022/03/10 04:39:49 tb Exp $ */
/*
* Copyright (c) 2022 Theo Buehler <tb@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <openssl/bn.h>
/*
* Small test for a crash reported by Guido Vranken, fixed in bn_exp2.c r1.13.
* https://github.com/openssl/openssl/issues/17648
*/
int
main(void)
{
BIGNUM *m;
if ((m = BN_new()) == NULL)
errx(1, "BN_new");
BN_zero_ex(m);
if (BN_mod_exp2_mont(NULL, NULL, NULL, NULL, NULL, m, NULL, NULL))
errx(1, "BN_mod_exp2_mont succeeded");
BN_free(m);
printf("SUCCESS\n");
return 0;
}
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