eap_gpsk_common.h revision c5ec7f57ead87efa365800228aa0b09a12d9e6c4 
1/*
2 * EAP server/peer: EAP-GPSK shared routines
3 * Copyright (c) 2006-2007, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9#ifndef EAP_GPSK_COMMON_H
10#define EAP_GPSK_COMMON_H
11
12#define EAP_GPSK_OPCODE_GPSK_1 1
13#define EAP_GPSK_OPCODE_GPSK_2 2
14#define EAP_GPSK_OPCODE_GPSK_3 3
15#define EAP_GPSK_OPCODE_GPSK_4 4
16#define EAP_GPSK_OPCODE_FAIL 5
17#define EAP_GPSK_OPCODE_PROTECTED_FAIL 6
18
19/* Failure-Code in GPSK-Fail and GPSK-Protected-Fail */
20#define EAP_GPSK_FAIL_PSK_NOT_FOUND 0x00000001
21#define EAP_GPSK_FAIL_AUTHENTICATION_FAILURE 0x00000002
22#define EAP_GPSK_FAIL_AUTHORIZATION_FAILURE 0x00000003
23
24#define EAP_GPSK_RAND_LEN 32
25#define EAP_GPSK_MAX_SK_LEN 32
26#define EAP_GPSK_MAX_PK_LEN 32
27#define EAP_GPSK_MAX_MIC_LEN 32
28
29#define EAP_GPSK_VENDOR_IETF		0x00000000
30#define EAP_GPSK_CIPHER_RESERVED	0x000000
31#define EAP_GPSK_CIPHER_AES		0x000001
32#define EAP_GPSK_CIPHER_SHA256		0x000002
33
34
35#ifdef _MSC_VER
36#pragma pack(push, 1)
37#endif /* _MSC_VER */
38
39struct eap_gpsk_csuite {
40	u8 vendor[4];
41	u8 specifier[2];
42} STRUCT_PACKED;
43
44#ifdef _MSC_VER
45#pragma pack(pop)
46#endif /* _MSC_VER */
47
48int eap_gpsk_supported_ciphersuite(int vendor, int specifier);
49int eap_gpsk_derive_keys(const u8 *psk, size_t psk_len, int vendor,
50			 int specifier,
51			 const u8 *rand_client, const u8 *rand_server,
52			 const u8 *id_client, size_t id_client_len,
53			 const u8 *id_server, size_t id_server_len,
54			 u8 *msk, u8 *emsk, u8 *sk, size_t *sk_len,
55			 u8 *pk, size_t *pk_len);
56size_t eap_gpsk_mic_len(int vendor, int specifier);
57int eap_gpsk_compute_mic(const u8 *sk, size_t sk_len, int vendor,
58			 int specifier, const u8 *data, size_t len, u8 *mic);
59
60#endif /* EAP_GPSK_COMMON_H */
61