ms_funcs.c File Reference

WPA Supplicant / shared MSCHAPV2 helper functions / RFC 2433 / RFC 2759. More...

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "common.h"
#include "sha1.h"
#include "ms_funcs.h"
#include "crypto.h"
#include "rc4.h"

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Defines
#define	PWBLOCK_LEN   516
Functions
void	nt_password_hash (const u8 *password, size_t password_len, u8 *password_hash)
	NtPasswordHash() - RFC 2759, Sect. 8.3.
void	hash_nt_password_hash (const u8 *password_hash, u8 *password_hash_hash)
	HashNtPasswordHash() - RFC 2759, Sect. 8.4.
void	challenge_response (const u8 *challenge, const u8 *password_hash, u8 *response)
	ChallengeResponse() - RFC 2759, Sect. 8.5.
void	generate_nt_response (const u8 *auth_challenge, const u8 *peer_challenge, const u8 *username, size_t username_len, const u8 *password, size_t password_len, u8 *response)
	GenerateNTResponse() - RFC 2759, Sect. 8.1.
void	generate_authenticator_response (const u8 *password, size_t password_len, const u8 *peer_challenge, const u8 *auth_challenge, const u8 *username, size_t username_len, const u8 *nt_response, u8 *response)
	GenerateAuthenticatorResponse() - RFC 2759, Sect. 8.7.
void	nt_challenge_response (const u8 *challenge, const u8 *password, size_t password_len, u8 *response)
	NtChallengeResponse() - RFC 2433, Sect. A.5.
void	get_master_key (const u8 *password_hash_hash, const u8 *nt_response, u8 *master_key)
	GetMasterKey() - RFC 3079, Sect. 3.4.
void	get_asymetric_start_key (const u8 *master_key, u8 *session_key, size_t session_key_len, int is_send, int is_server)
	GetAsymetricStartKey() - RFC 3079, Sect. 3.4.
void	new_password_encrypted_with_old_nt_password_hash (const u8 *new_password, size_t new_password_len, const u8 *old_password, size_t old_password_len, u8 *encrypted_pw_block)
	NewPasswordEncryptedWithOldNtPasswordHash() - RFC 2759, Sect. 8.9.
void	old_nt_password_hash_encrypted_with_new_nt_password_hash (const u8 *new_password, size_t new_password_len, const u8 *old_password, size_t old_password_len, u8 *encrypted_password_hash)
	OldNtPasswordHashEncryptedWithNewNtPasswordHash() - RFC 2759, Sect. 8.12.

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Detailed Description

WPA Supplicant / shared MSCHAPV2 helper functions / RFC 2433 / RFC 2759.

Copyright

Copyright (c) 2004-2006, Jouni Malinen <[email protected]>

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

Alternatively, this software may be distributed under the terms of BSD license.

See README and COPYING for more details.

Definition in file ms_funcs.c.

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Function Documentation

void challenge_response (  const u8 *  challenge, const u8 *  password_hash, u8 *  response )

ChallengeResponse() - RFC 2759, Sect. 8.5. Parameters: challenge  8-octet Challenge (IN) password_hash  16-octet PasswordHash (IN) response  24-octet Response (OUT) Definition at line 104 of file ms_funcs.c. Here is the call graph for this function:

void generate_authenticator_response (  const u8 *  password, size_t  password_len, const u8 *  peer_challenge, const u8 *  auth_challenge, const u8 *  username, size_t  username_len, const u8 *  nt_response, u8 *  response )

GenerateAuthenticatorResponse() - RFC 2759, Sect. 8.7. Parameters: password  0-to-256-unicode-char Password (IN) password_len  Length of password nt_response  24-octet NT-Response (IN) peer_challenge  16-octet PeerChallenge (IN) auth_challenge  16-octet AuthenticatorChallenge (IN) username  0-to-256-char UserName (IN) username_len  Length of username response  20-octet AuthenticatorResponse (OUT) (note: this value is usually encoded as a 42-octet ASCII string (S=<hexdump of="" response="">) Definition at line 156 of file ms_funcs.c. Here is the call graph for this function:

void generate_nt_response (  const u8 *  auth_challenge, const u8 *  peer_challenge, const u8 *  username, size_t  username_len, const u8 *  password, size_t  password_len, u8 *  response )

GenerateNTResponse() - RFC 2759, Sect. 8.1. Parameters: auth_challenge  16-octet AuthenticatorChallenge (IN) peer_hallenge  16-octet PeerChallenge (IN) username  0-to-256-char UserName (IN) username_len  Length of username password  0-to-256-unicode-char Password (IN; ASCII) password_len  Length of password response  24-octet Response (OUT) Definition at line 128 of file ms_funcs.c. Here is the call graph for this function:

void get_asymetric_start_key (  const u8 *  master_key, u8 *  session_key, size_t  session_key_len, int  is_send, int  is_server )

GetAsymetricStartKey() - RFC 3079, Sect. 3.4. Parameters: master_key  16-octet MasterKey (IN) session_key  8-to-16 octet SessionKey (OUT) session_key_len  SessionKeyLength (Length of session_key) (IN) is_send  IsSend (IN, BOOLEAN) is_server  IsServer (IN, BOOLEAN) Definition at line 254 of file ms_funcs.c. Here is the call graph for this function:

void get_master_key (  const u8 *  password_hash_hash, const u8 *  nt_response, u8 *  master_key )

GetMasterKey() - RFC 3079, Sect. 3.4. Parameters: password_hash_hash  16-octet PasswordHashHash (IN) nt_response  24-octet NTResponse (IN) master_key  16-octet MasterKey (OUT) Definition at line 224 of file ms_funcs.c. Here is the call graph for this function:

void hash_nt_password_hash (  const u8 *  password_hash, u8 *  password_hash_hash )

HashNtPasswordHash() - RFC 2759, Sect. 8.4. Parameters: password_hash  16-octet PasswordHash (IN) password_hash_hash  16-octet PasswordHashHash (OUT) Definition at line 90 of file ms_funcs.c. Here is the call graph for this function:

void new_password_encrypted_with_old_nt_password_hash (  const u8 *  new_password, size_t  new_password_len, const u8 *  old_password, size_t  old_password_len, u8 *  encrypted_pw_block )

NewPasswordEncryptedWithOldNtPasswordHash() - RFC 2759, Sect. 8.9. Parameters: new_password  0-to-256-unicode-char NewPassword (IN; ASCII) new_password_len  Length of new_password old_password  0-to-256-unicode-char OldPassword (IN; ASCII) old_password_len  Length of old_password encrypted_pw_block  516-octet EncryptedPwBlock (OUT) Definition at line 358 of file ms_funcs.c. Here is the call graph for this function:

void nt_challenge_response (  const u8 *  challenge, const u8 *  password, size_t  password_len, u8 *  response )

NtChallengeResponse() - RFC 2433, Sect. A.5. Parameters: challenge  8-octet Challenge (IN) password  0-to-256-unicode-char Password (IN; ASCII) password_len  Length of password response  24-octet Response (OUT) Definition at line 208 of file ms_funcs.c. Here is the call graph for this function:

void nt_password_hash (  const u8 *  password, size_t  password_len, u8 *  password_hash )

NtPasswordHash() - RFC 2759, Sect. 8.3. Parameters: password  0-to-256-unicode-char Password (IN; ASCII) password_len  Length of password password_hash  16-octet PasswordHash (OUT) Definition at line 63 of file ms_funcs.c. Here is the call graph for this function:

void old_nt_password_hash_encrypted_with_new_nt_password_hash (  const u8 *  new_password, size_t  new_password_len, const u8 *  old_password, size_t  old_password_len, u8 *  encrypted_password_hash )

OldNtPasswordHashEncryptedWithNewNtPasswordHash() - RFC 2759, Sect. 8.12. Parameters: new_password  0-to-256-unicode-char NewPassword (IN; ASCII) new_password_len  Length of new_password old_password  0-to-256-unicode-char OldPassword (IN; ASCII) old_password_len  Length of old_password encrypted_password_ash  16-octet EncryptedPasswordHash (OUT) Definition at line 396 of file ms_funcs.c. Here is the call graph for this function:

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