/*
- * Originally written by Bodo Moeller for the OpenSSL project.
- */
-/* ====================================================================
- * Copyright (c) 1998-2003 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 2001-2016 The OpenSSL Project Authors. 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
*/
+
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
* Binary polynomial ECC support in OpenSSL originally developed by
default:
break;
#ifdef ECP_NISTZ256_REFERENCE_IMPLEMENTATION
- case pct_nistz256:
+ case PCT_nistz256:
EC_nistz256_pre_comp_free(group->pre_comp.nistz256);
break;
#endif
#ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
- case pct_nistp224:
+ case PCT_nistp224:
EC_nistp224_pre_comp_free(group->pre_comp.nistp224);
break;
- case pct_nistp256:
+ case PCT_nistp256:
EC_nistp256_pre_comp_free(group->pre_comp.nistp256);
break;
- case pct_nistp521:
+ case PCT_nistp521:
EC_nistp521_pre_comp_free(group->pre_comp.nistp521);
break;
#endif
- case pct_ec:
+ case PCT_ec:
EC_ec_pre_comp_free(group->pre_comp.ec);
break;
}
dest->pre_comp.ec = NULL;
break;
#ifdef ECP_NISTZ256_REFERENCE_IMPLEMENTATION
- case pct_nistz256:
+ case PCT_nistz256:
dest->pre_comp.nistz256 = EC_nistz256_pre_comp_dup(src->pre_comp.nistz256);
break;
#endif
#ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
- case pct_nistp224:
+ case PCT_nistp224:
dest->pre_comp.nistp224 = EC_nistp224_pre_comp_dup(src->pre_comp.nistp224);
break;
- case pct_nistp256:
+ case PCT_nistp256:
dest->pre_comp.nistp256 = EC_nistp256_pre_comp_dup(src->pre_comp.nistp256);
break;
- case pct_nistp521:
+ case PCT_nistp521:
dest->pre_comp.nistp521 = EC_nistp521_pre_comp_dup(src->pre_comp.nistp521);
break;
#endif
- case pct_ec:
+ case PCT_ec:
dest->pre_comp.ec = EC_ec_pre_comp_dup(src->pre_comp.ec);
break;
}
} else
BN_zero(group->cofactor);
-
/*
* Some groups have an order with
* factors of two, which makes the Montgomery setup fail.
int EC_GROUP_order_bits(const EC_GROUP *group)
{
- if (group->order)
- return BN_num_bits(group->order);
- return 0;
+ OPENSSL_assert(group->meth->group_order_bits != NULL);
+ return group->meth->group_order_bits(group);
}
int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor,
EC_R_INCOMPATIBLE_OBJECTS);
return 0;
}
- return group->meth->point_set_affine_coordinates(group, point, x, y, ctx);
+ if (!group->meth->point_set_affine_coordinates(group, point, x, y, ctx))
+ return 0;
+
+ if (EC_POINT_is_on_curve(group, point, ctx) <= 0) {
+ ECerr(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP,
+ EC_R_POINT_IS_NOT_ON_CURVE);
+ return 0;
+ }
+ return 1;
}
#ifndef OPENSSL_NO_EC2M
EC_R_INCOMPATIBLE_OBJECTS);
return 0;
}
- return group->meth->point_set_affine_coordinates(group, point, x, y, ctx);
+ if (!group->meth->point_set_affine_coordinates(group, point, x, y, ctx))
+ return 0;
+
+ if (EC_POINT_is_on_curve(group, point, ctx) <= 0) {
+ ECerr(EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M,
+ EC_R_POINT_IS_NOT_ON_CURVE);
+ return 0;
+ }
+ return 1;
}
#endif
{
return CRYPTO_get_ex_data(&key->ex_data, idx);
}
+
+int ec_group_simple_order_bits(const EC_GROUP *group)
+{
+ if (group->order == NULL)
+ return 0;
+ return BN_num_bits(group->order);
+}
projects / openssl.git / blobdiff