1 files changed, 144 insertions, 0 deletions

diff --git a/src/lib/libcrypto/ec/ec_cvt.c b/src/lib/libcrypto/ec/ec_cvt.c
new file mode 100644
index 0000000000..d45640bab9
--- /dev/null
+++ b/src/lib/libcrypto/ec/ec_cvt.c
@@ -0,0 +1,144 @@
+/* crypto/ec/ec_cvt.c */
+/*
+ * Originally written by Bodo Moeller for the OpenSSL project.
+ */
+/* ====================================================================
+ * 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 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.
+ *
+ * The elliptic curve binary polynomial software is originally written by
+ * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
+ *
+ */
+
+#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))
+                {
+                unsigned long err;
+                  
+                err = ERR_peek_last_error();
+
+                if (!(ERR_GET_LIB(err) == ERR_LIB_EC &&
+                        ((ERR_GET_REASON(err) == EC_R_NOT_A_NIST_PRIME) ||
+                         (ERR_GET_REASON(err) == EC_R_NOT_A_SUPPORTED_NIST_PRIME))))
+                        {
+                        /* real error */
+                        
+                        EC_GROUP_clear_free(ret);
+                        return NULL;
+                        }
+                        
+                
+                /* not an actual error, we just cannot use EC_GFp_nist_method */
+
+                ERR_clear_error();
+
+                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;
+        }