/*
- * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2011-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
#include <stdio.h>
#include <openssl/bn.h>
-#include "bn_lcl.h"
+#include "bn_local.h"
/* X9.31 routines for prime derivation */
static int bn_x931_derive_pi(BIGNUM *pi, const BIGNUM *Xpi, BN_CTX *ctx,
BN_GENCB *cb)
{
- int i = 0;
+ int i = 0, is_prime;
if (!BN_copy(pi, Xpi))
return 0;
if (!BN_is_odd(pi) && !BN_add_word(pi, 1))
i++;
BN_GENCB_call(cb, 0, i);
/* NB 27 MR is specified in X9.31 */
- if (BN_is_prime_fasttest_ex(pi, 27, ctx, 1, cb))
+ is_prime = BN_check_prime(pi, ctx, cb);
+ if (is_prime < 0)
+ return 0;
+ if (is_prime)
break;
if (!BN_add_word(pi, 2))
return 0;
return 0;
BN_CTX_start(ctx);
- if (!p1)
+ if (p1 == NULL)
p1 = BN_CTX_get(ctx);
- if (!p2)
+ if (p2 == NULL)
p2 = BN_CTX_get(ctx);
t = BN_CTX_get(ctx);
pm1 = BN_CTX_get(ctx);
+ if (pm1 == NULL)
+ goto err;
+
if (!bn_x931_derive_pi(p1, Xp1, ctx, cb))
goto err;
goto err;
if (!BN_gcd(t, pm1, e, ctx))
goto err;
- if (BN_is_one(t)
+ if (BN_is_one(t)) {
/*
* X9.31 specifies 8 MR and 1 Lucas test or any prime test
* offering similar or better guarantees 50 MR is considerably
* better.
*/
- && BN_is_prime_fasttest_ex(p, 50, ctx, 1, cb))
- break;
+ int r = BN_check_prime(p, ctx, cb);
+ if (r < 0)
+ goto err;
+ if (r)
+ break;
+ }
if (!BN_add(p, p, p1p2))
goto err;
}
* - 1. By setting the top two bits we ensure that the lower bound is
* exceeded.
*/
- if (!BN_rand(Xp, nbits, 1, 0))
+ if (!BN_priv_rand_ex(Xp, nbits, BN_RAND_TOP_TWO, BN_RAND_BOTTOM_ANY, ctx))
goto err;
BN_CTX_start(ctx);
t = BN_CTX_get(ctx);
+ if (t == NULL)
+ goto err;
for (i = 0; i < 1000; i++) {
- if (!BN_rand(Xq, nbits, 1, 0))
+ if (!BN_priv_rand_ex(Xq, nbits, BN_RAND_TOP_TWO, BN_RAND_BOTTOM_ANY,
+ ctx))
goto err;
+
/* Check that |Xp - Xq| > 2^(nbits - 100) */
- BN_sub(t, Xp, Xq);
+ if (!BN_sub(t, Xp, Xq))
+ goto err;
if (BN_num_bits(t) > (nbits - 100))
break;
}
int ret = 0;
BN_CTX_start(ctx);
- if (!Xp1)
+ if (Xp1 == NULL)
Xp1 = BN_CTX_get(ctx);
- if (!Xp2)
+ if (Xp2 == NULL)
Xp2 = BN_CTX_get(ctx);
+ if (Xp1 == NULL || Xp2 == NULL)
+ goto error;
- if (!BN_rand(Xp1, 101, 0, 0))
+ if (!BN_priv_rand_ex(Xp1, 101, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY, ctx))
goto error;
- if (!BN_rand(Xp2, 101, 0, 0))
+ if (!BN_priv_rand_ex(Xp2, 101, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY, ctx))
goto error;
if (!BN_X931_derive_prime_ex(p, p1, p2, Xp, Xp1, Xp2, e, ctx, cb))
goto error;