dh_groups.c File Reference

Diffie-Hellman groups. More...

#include "includes.h"
#include "common.h"
#include "crypto.h"
#include "random.h"
#include "dh_groups.h"

Macros
#define	DH_GROUP(id, safe)
#define	NUM_DH_GROUPS   ARRAY_SIZE(dh_groups)

Functions
const struct dh_group *	dh_groups_get (int id)
struct wpabuf *	dh_init (const struct dh_group *dh, struct wpabuf **priv)
	Initialize Diffie-Hellman handshake. More...
struct wpabuf *	dh_derive_shared (const struct wpabuf *peer_public, const struct wpabuf *own_private, const struct dh_group *dh)
	Derive shared Diffie-Hellman key. More...

Detailed Description

Diffie-Hellman groups.

Macro Definition Documentation

#define DH_GROUP	(		id,
			safe
	)

Value:

{ id, dh_group ## id ## _generator, sizeof(dh_group ## id ## _generator), \
dh_group ## id ## _prime, sizeof(dh_group ## id ## _prime), \
dh_group ## id ## _order, sizeof(dh_group ## id ## _order), safe }

Function Documentation

struct wpabuf* dh_derive_shared	(	const struct wpabuf *	peer_public,
		const struct wpabuf *	own_private,
		const struct dh_group *	dh
	)

Derive shared Diffie-Hellman key.

Parameters

peer_public	Diffie-Hellman public value from peer
own_private	Diffie-Hellman private key from dh_init()
dh	Selected Diffie-Hellman group

Returns

Diffie-Hellman shared key

struct wpabuf* dh_init	(	const struct dh_group *	dh,
		struct wpabuf **	priv
	)

Initialize Diffie-Hellman handshake.

Parameters

dh	Selected Diffie-Hellman group
priv	Pointer for returning Diffie-Hellman private key

Returns

Diffie-Hellman public value