-/* crypto/bn/bn_gf2m.c */
-/* ====================================================================
- * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- *
- * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
- * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
- * to the OpenSSL project.
- *
- * The ECC Code is licensed pursuant to the OpenSSL open source
- * license provided below.
- *
- * In addition, Sun covenants to all licensees who provide a reciprocal
- * covenant with respect to their own patents if any, not to sue under
- * current and future patent claims necessarily infringed by the making,
- * using, practicing, selling, offering for sale and/or otherwise
- * disposing of the ECC Code as delivered hereunder (or portions thereof),
- * provided that such covenant shall not apply:
- * 1) for code that a licensee deletes from the ECC Code;
- * 2) separates from the ECC Code; or
- * 3) for infringements caused by:
- * i) the modification of the ECC Code or
- * ii) the combination of the ECC Code with other software or
- * devices where such combination causes the infringement.
- *
- * The software is originally written by Sheueling Chang Shantz and
- * Douglas Stebila of Sun Microsystems Laboratories.
- *
- */
-
/*
- * NOTE: This file is licensed pursuant to the OpenSSL license below and may
- * be modified; but after modifications, the above covenant may no longer
- * apply! In such cases, the corresponding paragraph ["In addition, Sun
- * covenants ... causes the infringement."] and this note can be edited out;
- * but please keep the Sun copyright notice and attribution.
- */
-
-/* ====================================================================
- * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+ * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
*
+ * Licensed under the OpenSSL license (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 <assert.h>
#include <limits.h>
#include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include "bn_lcl.h"
#ifndef OPENSSL_NO_EC2M
d0 = p[k] % BN_BITS2;
d1 = BN_BITS2 - d0;
z[n] ^= (zz << d0);
- tmp_ulong = zz >> d1;
- if (d0 && tmp_ulong)
+ if (d0 && (tmp_ulong = zz >> d1))
z[n + 1] ^= tmp_ulong;
}
int arr[6];
bn_check_top(a);
bn_check_top(p);
- ret = BN_GF2m_poly2arr(p, arr, sizeof(arr) / sizeof(arr[0]));
- if (!ret || ret > (int)(sizeof(arr) / sizeof(arr[0]))) {
+ ret = BN_GF2m_poly2arr(p, arr, OSSL_NELEM(arr));
+ if (!ret || ret > (int)OSSL_NELEM(arr)) {
BNerr(BN_F_BN_GF2M_MOD, BN_R_INVALID_LENGTH);
return 0;
}
bn_check_top(a);
bn_check_top(b);
bn_check_top(p);
- if ((arr = (int *)OPENSSL_malloc(sizeof(int) * max)) == NULL)
+ if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL)
goto err;
ret = BN_GF2m_poly2arr(p, arr, max);
if (!ret || ret > max) {
ret = BN_GF2m_mod_mul_arr(r, a, b, arr, ctx);
bn_check_top(r);
err:
- if (arr)
- OPENSSL_free(arr);
+ OPENSSL_free(arr);
return ret;
}
bn_check_top(a);
BN_CTX_start(ctx);
if ((s = BN_CTX_get(ctx)) == NULL)
- return 0;
+ goto err;
if (!bn_wexpand(s, 2 * a->top))
goto err;
bn_check_top(a);
bn_check_top(p);
- if ((arr = (int *)OPENSSL_malloc(sizeof(int) * max)) == NULL)
+ if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL)
goto err;
ret = BN_GF2m_poly2arr(p, arr, max);
if (!ret || ret > max) {
ret = BN_GF2m_mod_sqr_arr(r, a, arr, ctx);
bn_check_top(r);
err:
- if (arr)
- OPENSSL_free(arr);
+ OPENSSL_free(arr);
return ret;
}
}
# else
{
- int i, ubits = BN_num_bits(u), vbits = BN_num_bits(v), /* v is copy
- * of p */
- top = p->top;
+ int i;
+ int ubits = BN_num_bits(u);
+ int vbits = BN_num_bits(v); /* v is copy of p */
+ int top = p->top;
BN_ULONG *udp, *bdp, *vdp, *cdp;
- bn_wexpand(u, top);
+ if (!bn_wexpand(u, top))
+ goto err;
udp = u->d;
for (i = u->top; i < top; i++)
udp[i] = 0;
u->top = top;
- bn_wexpand(b, top);
+ if (!bn_wexpand(b, top))
+ goto err;
bdp = b->d;
bdp[0] = 1;
for (i = 1; i < top; i++)
bdp[i] = 0;
b->top = top;
- bn_wexpand(c, top);
+ if (!bn_wexpand(c, top))
+ goto err;
cdp = c->d;
for (i = 0; i < top; i++)
cdp[i] = 0;
ubits--;
}
- if (ubits <= BN_BITS2 && udp[0] == 1)
- break;
+ if (ubits <= BN_BITS2) {
+ if (udp[0] == 0) /* poly was reducible */
+ goto err;
+ if (udp[0] == 1)
+ break;
+ }
if (ubits < vbits) {
i = ubits;
bn_check_top(a);
bn_check_top(b);
bn_check_top(p);
- if ((arr = (int *)OPENSSL_malloc(sizeof(int) * max)) == NULL)
+ if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL)
goto err;
ret = BN_GF2m_poly2arr(p, arr, max);
if (!ret || ret > max) {
ret = BN_GF2m_mod_exp_arr(r, a, b, arr, ctx);
bn_check_top(r);
err:
- if (arr)
- OPENSSL_free(arr);
+ OPENSSL_free(arr);
return ret;
}
int *arr = NULL;
bn_check_top(a);
bn_check_top(p);
- if ((arr = (int *)OPENSSL_malloc(sizeof(int) * max)) == NULL)
+ if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL)
goto err;
ret = BN_GF2m_poly2arr(p, arr, max);
if (!ret || ret > max) {
ret = BN_GF2m_mod_sqrt_arr(r, a, arr, ctx);
bn_check_top(r);
err:
- if (arr)
- OPENSSL_free(arr);
+ OPENSSL_free(arr);
return ret;
}
if (tmp == NULL)
goto err;
do {
- if (!BN_rand(rho, p[0], 0, 0))
+ if (!BN_rand(rho, p[0], BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY))
goto err;
if (!BN_GF2m_mod_arr(rho, rho, p))
goto err;
int *arr = NULL;
bn_check_top(a);
bn_check_top(p);
- if ((arr = (int *)OPENSSL_malloc(sizeof(int) * max)) == NULL)
+ if ((arr = OPENSSL_malloc(sizeof(*arr) * max)) == NULL)
goto err;
ret = BN_GF2m_poly2arr(p, arr, max);
if (!ret || ret > max) {
ret = BN_GF2m_mod_solve_quad_arr(r, a, arr, ctx);
bn_check_top(r);
err:
- if (arr)
- OPENSSL_free(arr);
+ OPENSSL_free(arr);
return ret;
}
projects / openssl.git / blobdiff