X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fec%2Fec_cvt.c;h=20782569a9faddf1332869e3e624b60ab379c3c4;hp=989f366053b9cc5d7812132982dfa2c5a372c724;hb=5c6bf03117a26942327f43d02e9113e9870f7aba;hpb=65e8167079b9d7d3195436a78d6520ff47cf6780

diff --git a/crypto/ec/ec_cvt.c b/crypto/ec/ec_cvt.c
index 989f366053..20782569a9 100644
--- a/crypto/ec/ec_cvt.c
+++ b/crypto/ec/ec_cvt.c
@@ -1,7 +1,9 @@
-/* TODO */
 /* crypto/ec/ec_cvt.c */
+/*
+ * Originally written by Bodo Moeller for the OpenSSL project.
+ */
 /* ====================================================================
- * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
+ * 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
@@ -53,7 +55,86 @@
  * Hudson (tjh@cryptsoft.com).
  *
  */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ *
+ * Portions of the attached software ("Contribution") are developed by 
+ * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
+ *
+ * The Contribution is licensed pursuant to the OpenSSL open source
+ * license provided above.
+ *
+ * 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 Contribution as delivered hereunder 
+ * (or portions thereof), provided that such covenant shall not apply:
+ *  1) for code that a licensee deletes from the Contribution;
+ *  2) separates from the Contribution; or
+ *  3) for infringements caused by:
+ *       i) the modification of the Contribution or
+ *      ii) the combination of the Contribution with other software or
+ *          devices where such combination causes the infringement.
+ *
+ * The elliptic curve binary polynomial software is originally written by
+ * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
+ *
+ */
 
-#include <openssl/ec.h>
-
+#include <openssl/err.h>
 #include "ec_lcl.h"
+
+
+EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
+	{
+	const EC_METHOD *meth;
+	EC_GROUP *ret;
+
+	meth = EC_GFp_nist_method();
+	
+	ret = EC_GROUP_new(meth);
+	if (ret == NULL)
+		return NULL;
+
+	if (!EC_GROUP_set_curve_GFp(ret, p, a, b, ctx))
+		{
+		/* remove the last error code form the error queue */
+		ERR_get_error();
+		/* try the normal mont method */
+		EC_GROUP_clear_free(ret);
+		meth = EC_GFp_mont_method();
+
+		ret = EC_GROUP_new(meth);
+		if (ret == NULL)
+			return NULL;
+
+		if (!EC_GROUP_set_curve_GFp(ret, p, a, b, ctx))
+			{
+			EC_GROUP_clear_free(ret);
+			return NULL;
+			}
+		}
+
+	return ret;
+	}
+
+EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
+	{
+	const EC_METHOD *meth;
+	EC_GROUP *ret;
+	
+	meth = EC_GF2m_simple_method();
+	
+	ret = EC_GROUP_new(meth);
+	if (ret == NULL)
+		return NULL;
+
+	if (!EC_GROUP_set_curve_GF2m(ret, p, a, b, ctx))
+		{
+		EC_GROUP_clear_free(ret);
+		return NULL;
+		}
+
+	return ret;
+	}