--- /dev/null
+/* crypto/ec/ec_lib.c */
+/*
+ * 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 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ * Binary polynomial ECC support in OpenSSL originally developed by
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
+ */
+
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/opensslv.h>
+
+#include "ec_lcl.h"
+
+int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *point,
+ const BIGNUM *x, int y_bit, BN_CTX *ctx)
+ {
+ if (group->meth->point_set_compressed_coordinates == 0
+ && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT))
+ {
+ ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+ if (group->meth != point->meth)
+ {
+ ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, EC_R_INCOMPATIBLE_OBJECTS);
+ return 0;
+ }
+ if(group->meth->flags & EC_FLAGS_DEFAULT_OCT)
+ {
+ if (group->meth->field_type == NID_X9_62_prime_field)
+ return ec_GFp_simple_set_compressed_coordinates(
+ group, point, x, y_bit, ctx);
+ else
+#ifdef OPENSSL_NO_EC2M
+ {
+ ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP, EC_R_GF2M_NOT_SUPPORTED);
+ return 0;
+ }
+#else
+ return ec_GF2m_simple_set_compressed_coordinates(
+ group, point, x, y_bit, ctx);
+#endif
+ }
+ return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx);
+ }
+
+#ifndef OPENSSL_NO_EC2M
+int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *point,
+ const BIGNUM *x, int y_bit, BN_CTX *ctx)
+ {
+ if (group->meth->point_set_compressed_coordinates == 0
+ && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT))
+ {
+ ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+ if (group->meth != point->meth)
+ {
+ ECerr(EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M, EC_R_INCOMPATIBLE_OBJECTS);
+ return 0;
+ }
+ if(group->meth->flags & EC_FLAGS_DEFAULT_OCT)
+ {
+ if (group->meth->field_type == NID_X9_62_prime_field)
+ return ec_GFp_simple_set_compressed_coordinates(
+ group, point, x, y_bit, ctx);
+ else
+ return ec_GF2m_simple_set_compressed_coordinates(
+ group, point, x, y_bit, ctx);
+ }
+ return group->meth->point_set_compressed_coordinates(group, point, x, y_bit, ctx);
+ }
+#endif
+
+size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *point, point_conversion_form_t form,
+ unsigned char *buf, size_t len, BN_CTX *ctx)
+ {
+ if (group->meth->point2oct == 0
+ && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT))
+ {
+ ECerr(EC_F_EC_POINT_POINT2OCT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+ if (group->meth != point->meth)
+ {
+ ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_INCOMPATIBLE_OBJECTS);
+ return 0;
+ }
+ if(group->meth->flags & EC_FLAGS_DEFAULT_OCT)
+ {
+ if (group->meth->field_type == NID_X9_62_prime_field)
+ return ec_GFp_simple_point2oct(group, point,
+ form, buf, len, ctx);
+ else
+#ifdef OPENSSL_NO_EC2M
+ {
+ ECerr(EC_F_EC_POINT_POINT2OCT, EC_R_GF2M_NOT_SUPPORTED);
+ return 0;
+ }
+#else
+ return ec_GF2m_simple_point2oct(group, point,
+ form, buf, len, ctx);
+#endif
+ }
+
+ return group->meth->point2oct(group, point, form, buf, len, ctx);
+ }
+
+
+int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point,
+ const unsigned char *buf, size_t len, BN_CTX *ctx)
+ {
+ if (group->meth->oct2point == 0
+ && !(group->meth->flags & EC_FLAGS_DEFAULT_OCT))
+ {
+ ECerr(EC_F_EC_POINT_OCT2POINT, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+ if (group->meth != point->meth)
+ {
+ ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_INCOMPATIBLE_OBJECTS);
+ return 0;
+ }
+ if(group->meth->flags & EC_FLAGS_DEFAULT_OCT)
+ {
+ if (group->meth->field_type == NID_X9_62_prime_field)
+ return ec_GFp_simple_oct2point(group, point,
+ buf, len, ctx);
+ else
+#ifdef OPENSSL_NO_EC2M
+ {
+ ECerr(EC_F_EC_POINT_OCT2POINT, EC_R_GF2M_NOT_SUPPORTED);
+ return 0;
+ }
+#else
+ return ec_GF2m_simple_oct2point(group, point,
+ buf, len, ctx);
+#endif
+ }
+ return group->meth->oct2point(group, point, buf, len, ctx);
+ }
+
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