added keyexchange

1 files changed, 94 insertions, 0 deletions

diff --git a/keyexchange/isakmpd-20041012/math_group.h b/keyexchange/isakmpd-20041012/math_group.h
new file mode 100644
index 0000000..d5a19bc
--- /dev/null
+++ b/keyexchange/isakmpd-20041012/math_group.h
@@ -0,0 +1,94 @@
+/* $OpenBSD: math_group.h,v 1.10 2004/04/15 18:39:26 deraadt Exp $	 */
+/* $EOM: math_group.h,v 1.7 1999/04/17 23:20:40 niklas Exp $	 */
+
+/*
+ * Copyright (c) 1998 Niels Provos.  All rights reserved.
+ * Copyright (c) 1999 Niklas Hallqvist.  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_GROUP_H_
+#define _MATH_GROUP_H_
+
+enum groups {
+	MODP,			/* F_p, Z modulo a prime */
+	EC2N,			/* Elliptic Curve over the Field GF(2**N) */
+	ECP,			/* Elliptic Curve over the Field Z_p */
+	NOTYET			/* Not yet assigned */
+};
+
+/*
+ * The group on which diffie hellmann calculations are done.
+ */
+
+struct group {
+	enum groups     type;
+	int             id;	/* Group ID */
+	int             bits;	/* Number of key bits provided by this group */
+	void           *group;
+	void           *a, *b, *c, *d;
+	void           *gen;	/* Group Generator */
+	int             (*getlen) (struct group *);
+	void            (*getraw) (struct group *, void *, u_int8_t *);
+	int             (*setraw) (struct group *, void *, u_int8_t *, int);
+	int             (*setrandom) (struct group *, void *);
+	int             (*operation) (struct group *, void *, void *, void *);
+};
+
+/* Description of an Elliptic Group over GF(2**n) for Boot-Strapping */
+
+struct ec2n_dscr {
+	int             id;
+	int             bits;	/* Key Bits provided by this group */
+	char           *polynomial;	/* Irreduceable polynomial */
+	char           *gen_x;	/* X - Coord. of Generator */
+	char           *a, *b;	/* Curve Parameters */
+};
+
+/* Description of F_p for Boot-Strapping */
+
+struct modp_dscr {
+	int             id;
+	int             bits;	/* Key Bits provided by this group */
+	char           *prime;	/* Prime */
+	char           *gen;	/* Generator */
+};
+
+/* Prototypes */
+
+void            group_init(void);
+void            group_free(struct group *);
+struct group   *group_get(u_int32_t);
+
+void            ec2n_free(struct group *);
+struct group   *ec2n_clone(struct group *, struct group *);
+void            ec2n_init(struct group *);
+
+void            modp_free(struct group *);
+struct group   *modp_clone(struct group *, struct group *);
+void            modp_init(struct group *);
+
+#endif				/* _MATH_GROUP_H_ */