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00001 /* 00002 * WPA Supplicant / shared MSCHAPV2 helper functions / RFC 2433 / RFC 2759 00003 * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi> 00004 * 00005 * This program is free software; you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License version 2 as 00007 * published by the Free Software Foundation. 00008 * 00009 * Alternatively, this software may be distributed under the terms of BSD 00010 * license. 00011 * 00012 * See README and COPYING for more details. 00013 */ 00014 00015 #ifndef MS_FUNCS_H 00016 #define MS_FUNCS_H 00017 00018 int generate_nt_response(const u8 *auth_challenge, const u8 *peer_challenge, 00019 const u8 *username, size_t username_len, 00020 const u8 *password, size_t password_len, 00021 u8 *response); 00022 int generate_nt_response_pwhash(const u8 *auth_challenge, 00023 const u8 *peer_challenge, 00024 const u8 *username, size_t username_len, 00025 const u8 *password_hash, 00026 u8 *response); 00027 int generate_authenticator_response(const u8 *password, size_t password_len, 00028 const u8 *peer_challenge, 00029 const u8 *auth_challenge, 00030 const u8 *username, size_t username_len, 00031 const u8 *nt_response, u8 *response); 00032 int generate_authenticator_response_pwhash( 00033 const u8 *password_hash, 00034 const u8 *peer_challenge, const u8 *auth_challenge, 00035 const u8 *username, size_t username_len, 00036 const u8 *nt_response, u8 *response); 00037 int nt_challenge_response(const u8 *challenge, const u8 *password, 00038 size_t password_len, u8 *response); 00039 00040 void challenge_response(const u8 *challenge, const u8 *password_hash, 00041 u8 *response); 00042 int nt_password_hash(const u8 *password, size_t password_len, 00043 u8 *password_hash); 00044 int hash_nt_password_hash(const u8 *password_hash, u8 *password_hash_hash); 00045 int get_master_key(const u8 *password_hash_hash, const u8 *nt_response, 00046 u8 *master_key); 00047 int get_asymetric_start_key(const u8 *master_key, u8 *session_key, 00048 size_t session_key_len, int is_send, 00049 int is_server); 00050 int __must_check encrypt_pw_block_with_password_hash( 00051 const u8 *password, size_t password_len, 00052 const u8 *password_hash, u8 *pw_block); 00053 int __must_check new_password_encrypted_with_old_nt_password_hash( 00054 const u8 *new_password, size_t new_password_len, 00055 const u8 *old_password, size_t old_password_len, 00056 u8 *encrypted_pw_block); 00057 void nt_password_hash_encrypted_with_block(const u8 *password_hash, 00058 const u8 *block, u8 *cypher); 00059 int old_nt_password_hash_encrypted_with_new_nt_password_hash( 00060 const u8 *new_password, size_t new_password_len, 00061 const u8 *old_password, size_t old_password_len, 00062 u8 *encrypted_password_hash); 00063 00064 #endif /* MS_FUNCS_H */