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Diffstat (limited to 'keyexchange/isakmpd-20041012/math_group.h')
| -rw-r--r-- | keyexchange/isakmpd-20041012/math_group.h | 94 |
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_ */ |