EAP server/peer: EAP-SAKE shared routines. More...

#include "includes.h"
#include "common.h"
#include "wpabuf.h"
#include "crypto/sha1.h"
#include "eap_defs.h"
#include "eap_sake_common.h"

Functions
int	eap_sake_parse_attributes (const u8 buf, size_t len, struct eap_sake_parse_attr attr)
	Parse EAP-SAKE attributes. More...

void	eap_sake_derive_keys (const u8 root_secret_a, const u8 root_secret_b, const u8 rand_s, const u8 rand_p, u8 tek, u8 msk, u8 *emsk)
	Derive EAP-SAKE keys. More...

int	eap_sake_compute_mic (const u8 tek_auth, const u8 rand_s, const u8 rand_p, const u8 serverid, size_t serverid_len, const u8 peerid, size_t peerid_len, int peer, const u8 eap, size_t eap_len, const u8 mic_pos, u8 mic)
	Compute EAP-SAKE MIC for an EAP packet. More...

void	eap_sake_add_attr (struct wpabuf buf, u8 type, const u8 data, size_t len)

Detailed Description

EAP server/peer: EAP-SAKE shared routines.

Function Documentation

Compute EAP-SAKE MIC for an EAP packet.

Parameters

tek_auth	16-byte TEK-Auth
rand_s	16-byte RAND_S
rand_p	16-byte RAND_P
serverid	SERVERID
serverid_len	SERVERID length
peerid	PEERID
peerid_len	PEERID length
peer	MIC calculation for 0 = Server, 1 = Peer message
eap	EAP packet
eap_len	EAP packet length
mic_pos	MIC position in the EAP packet (must be [eap .. eap + eap_len])
mic	Buffer for the computed 16-byte MIC

Derive EAP-SAKE keys.

Parameters

root_secret_a	16-byte Root-Secret-A
root_secret_b	16-byte Root-Secret-B
rand_s	16-byte RAND_S
rand_p	16-byte RAND_P
tek	Buffer for Temporary EAK Keys (TEK-Auth[16] \| TEK-Cipher[16])
msk	Buffer for 64-byte MSK
emsk	Buffer for 64-byte EMSK

This function derives EAP-SAKE keys as defined in RFC 4763, section 3.2.6.

int eap_sake_parse_attributes	(	const u8 *	buf,
		size_t	len,
		struct eap_sake_parse_attr *	attr
	)

Parse EAP-SAKE attributes.

Parameters

buf	Packet payload (starting with the first attribute)
len	Payload length
attr	Structure to be filled with found attributes