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This commit is contained in:
Miles Lott 2004-01-20 21:31:33 +00:00
parent e812476714
commit d7db3b384e
1 changed files with 79 additions and 3 deletions
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82
phpgwapi/inc/class.auth.inc.php
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@ -3,8 +3,9 @@
* eGroupWare API - Password auth and crypt functions *
* This file written by Miles Lott <milos@groupwhere.org> *
* Copyright (C) 2004 Miles Lott *
* Most functions based on code from http://www.thomas-alfeld.de/frank/ *
* Other code taken from class.common.inc.php originally from phpGroupWare *
* Many functions based on code from Frank Thomas <frank@thomas-alfeld.de> *
* which can be seen at http://www.thomas-alfeld.de/frank/ *
* Other functions from class.common.inc.php originally from phpGroupWare *
* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
@ -124,6 +125,7 @@
/* Create a password for storage in the phpgw_accounts table */
function encrypt_sql($password)
{
/* Grab configured type, or default to md5() (old method) */
$type = @$GLOBALS['phpgw_info']['server']['sql_encryption_type']
? strtolower($GLOBALS['phpgw_info']['server']['sql_encryption_type'])
: 'md5';
@ -167,7 +169,7 @@
$this->error = 'no sha';
return False;
}
return '{SHA}' . base64_encode(mhash(MHASH_SHA1,$passwd));
return '{SHA}' . base64_encode(mhash(MHASH_SHA1,$password));
case 'ssha':
if(!function_exists('mhash'))
{
@ -185,5 +187,79 @@
$this->error = $this->error ? $this->error : 'no valid encryption available';
return False;
}
/**
@function sha_compare
@abstract compare SHA-encrypted passwords for authentication
@param $form_val user input value for comparison
@param $db_val stored value (from database)
@return boolean True on successful comparison
*/
function sha_compare($form_val,$db_val)
{
/* Start with the first char after {SHA} */
$hash = base64_decode(substr($db_val,5));
$new_hash = mhash(MHASH_SHA1,$form_val);
//echo '<br> DB: ' . base64_encode($orig_hash) . '<br>FORM: ' . base64_encode($new_hash);
if(strcmp($hash,$new_hash) == 0)
{
return True;
}
return False;
}
/**
@function ssha_compare
@abstract compare SSHA-encrypted passwords for authentication
@param $form_val user input value for comparison
@param $db_val stored value (from database)
@return boolean True on successful comparison
*/
function ssha_compare($form_val,$db_val)
{
/* Start with the first char after {SSHA} */
$hash = base64_decode(substr($db_val, 6));
// SHA-1 hashes are 160 bits long
$orig_hash = substr($hash, 0, 20);
$salt = substr($hash, 20);
$new_hash = mhash(MHASH_SHA1, $form_val . $salt);
if(strcmp($orig_hash,$new_hash) == 0)
{
return True;
}
return False;
}
/**
@function crypt_compare
@abstract compare crypted passwords for authentication whether des,ext_des,md5, or blowfish crypt
@param $form_val user input value for comparison
@param $db_val stored value (from database)
@param $type crypt() type
@return boolean True on successful comparison
*/
function crypt_compare($form_val,$db_val,$type)
{
$saltlen = array(
'blowfish_crypt' => 16,
'md5_crypt' => 12,
'ext_crypt' => 9,
'crypt' => 2
);
// PHP's crypt(): salt + hash
// notice: "The encryption type is triggered by the salt argument."
$salt = substr($db_val, 0, (int)$saltlen[$type]);
$new_hash = crypt($form_val, $salt);
if(strcmp($db_val,$new_hash) == 0)
{
return True;
}
return False;
}
}
?>