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 software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #ifndef MS_FUNCS_H 10 #define MS_FUNCS_H 11 12 int generate_nt_response(const u8 *auth_challenge, const u8 *peer_challenge, 13 const u8 *username, size_t username_len, 14 const u8 *password, size_t password_len, 15 u8 *response); 16 int generate_nt_response_pwhash(const u8 *auth_challenge, 17 const u8 *peer_challenge, 18 const u8 *username, size_t username_len, 19 const u8 *password_hash, 20 u8 *response); 21 int generate_authenticator_response(const u8 *password, size_t password_len, 22 const u8 *peer_challenge, 23 const u8 *auth_challenge, 24 const u8 *username, size_t username_len, 25 const u8 *nt_response, u8 *response); 26 int generate_authenticator_response_pwhash( 27 const u8 *password_hash, 28 const u8 *peer_challenge, const u8 *auth_challenge, 29 const u8 *username, size_t username_len, 30 const u8 *nt_response, u8 *response); 31 int nt_challenge_response(const u8 *challenge, const u8 *password, 32 size_t password_len, u8 *response); 33 34 void challenge_response(const u8 *challenge, const u8 *password_hash, 35 u8 *response); 36 int challenge_hash(const u8 *peer_challenge, const u8 *auth_challenge, 37 const u8 *username, size_t username_len, u8 *challenge); 38 int nt_password_hash(const u8 *password, size_t password_len, 39 u8 *password_hash); 40 int hash_nt_password_hash(const u8 *password_hash, u8 *password_hash_hash); 41 int get_master_key(const u8 *password_hash_hash, const u8 *nt_response, 42 u8 *master_key); 43 int get_asymetric_start_key(const u8 *master_key, u8 *session_key, 44 size_t session_key_len, int is_send, 45 int is_server); 46 int __must_check encrypt_pw_block_with_password_hash( 47 const u8 *password, size_t password_len, 48 const u8 *password_hash, u8 *pw_block); 49 int __must_check new_password_encrypted_with_old_nt_password_hash( 50 const u8 *new_password, size_t new_password_len, 51 const u8 *old_password, size_t old_password_len, 52 u8 *encrypted_pw_block); 53 void nt_password_hash_encrypted_with_block(const u8 *password_hash, 54 const u8 *block, u8 *cypher); 55 int old_nt_password_hash_encrypted_with_new_nt_password_hash( 56 const u8 *new_password, size_t new_password_len, 57 const u8 *old_password, size_t old_password_len, 58 u8 *encrypted_password_hash); 59 60 #endif /* MS_FUNCS_H */ 61