ms_funcs.h revision 8d520ff1dc2da35cdca849e982051b86468016d8 
1/*
2 * WPA Supplicant / shared MSCHAPV2 helper functions / RFC 2433 / RFC 2759
3 * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#ifndef MS_FUNCS_H
16#define MS_FUNCS_H
17
18int generate_nt_response(const u8 *auth_challenge, const u8 *peer_challenge,
19			 const u8 *username, size_t username_len,
20			 const u8 *password, size_t password_len,
21			 u8 *response);
22int generate_nt_response_pwhash(const u8 *auth_challenge,
23				const u8 *peer_challenge,
24				const u8 *username, size_t username_len,
25				const u8 *password_hash,
26				u8 *response);
27int generate_authenticator_response(const u8 *password, size_t password_len,
28				    const u8 *peer_challenge,
29				    const u8 *auth_challenge,
30				    const u8 *username, size_t username_len,
31				    const u8 *nt_response, u8 *response);
32int generate_authenticator_response_pwhash(
33	const u8 *password_hash,
34	const u8 *peer_challenge, const u8 *auth_challenge,
35	const u8 *username, size_t username_len,
36	const u8 *nt_response, u8 *response);
37int nt_challenge_response(const u8 *challenge, const u8 *password,
38			  size_t password_len, u8 *response);
39
40void challenge_response(const u8 *challenge, const u8 *password_hash,
41			u8 *response);
42int nt_password_hash(const u8 *password, size_t password_len,
43		     u8 *password_hash);
44int hash_nt_password_hash(const u8 *password_hash, u8 *password_hash_hash);
45int get_master_key(const u8 *password_hash_hash, const u8 *nt_response,
46		   u8 *master_key);
47int get_asymetric_start_key(const u8 *master_key, u8 *session_key,
48			    size_t session_key_len, int is_send,
49			    int is_server);
50int __must_check encrypt_pw_block_with_password_hash(
51	const u8 *password, size_t password_len,
52	const u8 *password_hash, u8 *pw_block);
53int __must_check new_password_encrypted_with_old_nt_password_hash(
54	const u8 *new_password, size_t new_password_len,
55	const u8 *old_password, size_t old_password_len,
56	u8 *encrypted_pw_block);
57void nt_password_hash_encrypted_with_block(const u8 *password_hash,
58					   const u8 *block, u8 *cypher);
59int old_nt_password_hash_encrypted_with_new_nt_password_hash(
60	const u8 *new_password, size_t new_password_len,
61	const u8 *old_password, size_t old_password_len,
62	u8 *encrypted_password_hash);
63
64#endif /* MS_FUNCS_H */
65