hostap/src/crypto/dh_groups.h
Jouni Malinen 2ce12789c1 Add Diffie-Hellman group definitions for MODP groups in RFC 5114
The groups 22, 23, and 24 are not based on a safe prime and generate a
prime order subgroup. As such, struct dh_group is also extended to
include the order for previously defined groups (q=(p-1)/2 since these
were based on a safe prime).

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-01-12 17:51:54 +02:00

29 lines
692 B
C

/*
* Diffie-Hellman groups
* Copyright (c) 2007, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef DH_GROUPS_H
#define DH_GROUPS_H
struct dh_group {
int id;
const u8 *generator;
size_t generator_len;
const u8 *prime;
size_t prime_len;
const u8 *order;
size_t order_len;
unsigned int safe_prime:1;
};
const struct dh_group * dh_groups_get(int id);
struct wpabuf * dh_init(const struct dh_group *dh, struct wpabuf **priv);
struct wpabuf * dh_derive_shared(const struct wpabuf *peer_public,
const struct wpabuf *own_private,
const struct dh_group *dh);
#endif /* DH_GROUPS_H */