From 6585e5ad764ee2414d9b01f30784b6549bc8f58e Mon Sep 17 00:00:00 2001
From: Othmar Gsenger <otti@anytun.org>
Date: Mon, 30 Jul 2007 19:37:53 +0000
Subject: added keyexchange

---
 keyexchange/isakmpd-20041012/math_ec2n.h | 94 ++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 keyexchange/isakmpd-20041012/math_ec2n.h

(limited to 'keyexchange/isakmpd-20041012/math_ec2n.h')

diff --git a/keyexchange/isakmpd-20041012/math_ec2n.h b/keyexchange/isakmpd-20041012/math_ec2n.h
new file mode 100644
index 0000000..247f84a
--- /dev/null
+++ b/keyexchange/isakmpd-20041012/math_ec2n.h
@@ -0,0 +1,94 @@
+/* $OpenBSD: math_ec2n.h,v 1.7 2004/05/23 18:17:56 hshoexer Exp $	 */
+/* $EOM: math_ec2n.h,v 1.4 1999/04/17 23:20:37 niklas Exp $	 */
+
+/*
+ * Copyright (c) 1998 Niels Provos.  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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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 code was written under funding by Ericsson Radio Systems.
+ */
+
+#ifndef _MATH_EC2N_H
+#define _MATH_EC2N_H_
+
+/* Definitions for points on an elliptic curve */
+
+typedef struct {
+	int             inf;	/* Are we the point at infinity ? */
+	b2n_t           x, y;
+}               _ec2n_point;
+
+typedef _ec2n_point *ec2np_ptr;
+typedef _ec2n_point ec2np_t[1];
+
+#define EC2NP_SWAP(k,n) do \
+  { \
+    int _i_; \
+\
+    _i_ = (k)->inf; \
+    (k)->inf = (n)->inf; \
+    (n)->inf = _i_; \
+    B2N_SWAP ((k)->x, (n)->x); \
+    B2N_SWAP ((k)->y, (n)->y); \
+  } \
+while (0)
+
+void	ec2np_init(ec2np_ptr);
+void	ec2np_clear(ec2np_ptr);
+int	ec2np_set(ec2np_ptr, ec2np_ptr);
+
+#define ec2np_set_x_ui(n, y) b2n_set_ui ((n)->x, y)
+#define ec2np_set_y_ui(n, x) b2n_set_ui ((n)->y, x)
+#define ec2np_set_x_str(n, y) b2n_set_str ((n)->x, y)
+#define ec2np_set_y_str(n, x) b2n_set_str ((n)->y, x)
+
+/* Definitions for the group to which the points to belong to.  */
+
+typedef struct {
+	b2n_t           a, b, p;
+}               _ec2n_group;
+
+typedef _ec2n_group *ec2ng_ptr;
+typedef _ec2n_group ec2ng_t[1];
+
+void	ec2ng_init(ec2ng_ptr);
+void	ec2ng_clear(ec2ng_ptr);
+int	ec2ng_set(ec2ng_ptr, ec2ng_ptr);
+
+#define ec2ng_set_a_ui(n, x) b2n_set_ui ((n)->a, x)
+#define ec2ng_set_b_ui(n, x) b2n_set_ui ((n)->b, x)
+#define ec2ng_set_p_ui(n, x) b2n_set_ui ((n)->p, x)
+#define ec2ng_set_a_str(n, x) b2n_set_str ((n)->a, x)
+#define ec2ng_set_b_str(n, x) b2n_set_str ((n)->b, x)
+#define ec2ng_set_p_str(n, x) b2n_set_str ((n)->p, x)
+
+/* Functions for computing on the elliptic group.  */
+
+int	ec2np_add(ec2np_ptr, ec2np_ptr, ec2np_ptr, ec2ng_ptr);
+int	ec2np_find_y(ec2np_ptr, ec2ng_ptr);
+int	ec2np_ison(ec2np_ptr, ec2ng_ptr);
+int	ec2np_mul(ec2np_ptr, ec2np_ptr, b2n_ptr, ec2ng_ptr);
+int	ec2np_right(b2n_ptr n, ec2np_ptr, ec2ng_ptr);
+
+#endif				/* _MATH_2N_H_ */
-- 
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