AES_ENCRYPT/DECRYPT Help!

[mikejr]

I'm able to encrypt the passwords enetered as such:

[code]
<?php require_once('Connections/access.php'); ?>
<?php
// *** Validate request to login to this site.
if (!isset($_SESSION)) {
  session_start();
}

$loginFormAction = $_SERVER['PHP_SELF'];
if (isset($_GET['accesscheck'])) {
  $_SESSION['PrevUrl'] = $_GET['accesscheck'];
}

if (isset($_POST['textfield'])) {
  $loginUsername=$_POST['textfield'];
  $password=$_POST['textfield2'];
  $MM_fldUserAuthorization = "group";
  $MM_redirectLoginSuccess = "index.php";
  $MM_redirectLoginFailed = "login.php";
  $MM_redirecttoReferrer = true;
  mysql_select_db($database_access, $access);
      
  $LoginRS__query=sprintf("SELECT name, pass, `group` FROM users WHERE name='%s' AND pass=AES_ENCRYPT('%s','TEXT_STRING_PASSWORD')",
  get_magic_quotes_gpc() ? $loginUsername : addslashes($loginUsername), get_magic_quotes_gpc() ? $password : addslashes($password));
  
  $LoginRS = mysql_query($LoginRS__query, $access) or die(mysql_error());
  $loginFoundUser = mysql_num_rows($LoginRS);
  if ($loginFoundUser) {
    
    $loginStrGroup  = mysql_result($LoginRS,0,'group');
    
    //declare two session variables and assign them
    $_SESSION['MM_Username'] = $loginUsername;
    $_SESSION['MM_UserGroup'] = $loginStrGroup;          

    if (isset($_SESSION['PrevUrl']) && true) {
      $MM_redirectLoginSuccess = $_SESSION['PrevUrl'];    
    }
    header("Location: " . $MM_redirectLoginSuccess );
  }
  else {
    header("Location: ". $MM_redirectLoginFailed );
  }
}
?>[/code]

This line:
[code]  $LoginRS__query=sprintf("SELECT name, pass, `group` FROM users WHERE name='%s' AND pass=AES_ENCRYPT('%s','TEXT_STRING_PASSWORD')",[/code]

The problem is trying to get them unencrypted. It's no problem if I specify the username as such:

[code]<?php require_once('Connections/access.php');
if (!isset($_SESSION)) {
  session_start();
}
$MM_authorizedUsers = "admin";
$MM_donotCheckaccess = "false";

// *** Restrict Access To Page: Grant or deny access to this page
function isAuthorized($strUsers, $strGroups, $UserName, $UserGroup) {
  // For security, start by assuming the visitor is NOT authorized.
  $isValid = False;

  // When a visitor has logged into this site, the Session variable MM_Username set equal to their username.
  // Therefore, we know that a user is NOT logged in if that Session variable is blank.
  if (!empty($UserName)) {
    // Besides being logged in, you may restrict access to only certain users based on an ID established when they login.
    // Parse the strings into arrays.
    $arrUsers = Explode(",", $strUsers);
    $arrGroups = Explode(",", $strGroups);
    if (in_array($UserName, $arrUsers)) {
      $isValid = true;
    }
    // Or, you may restrict access to only certain users based on their username.
    if (in_array($UserGroup, $arrGroups)) {
      $isValid = true;
    }
    if (($strUsers == "") && false) {
      $isValid = true;
    }
  }
  return $isValid;
}

$MM_restrictGoTo = "login.php";
if (!((isset($_SESSION['MM_Username'])) && (isAuthorized("",$MM_authorizedUsers, $_SESSION['MM_Username'], $_SESSION['MM_UserGroup'])))) {  
  $MM_qsChar = "?";
  $MM_referrer = $_SERVER['PHP_SELF'];
  if (strpos($MM_restrictGoTo, "?")) $MM_qsChar = "&";
  if (isset($QUERY_STRING) && strlen($QUERY_STRING) > 0)
  $MM_referrer .= "?" . $QUERY_STRING;
  $MM_restrictGoTo = $MM_restrictGoTo. $MM_qsChar . "accesscheck=" . urlencode($MM_referrer);
  header("Location: ". $MM_restrictGoTo);
  exit;
}

mysql_select_db($database_access, $access);
$query_Recordset1 = "SELECT AES_DECRYPT(pass, 'TEXT_STRING_PASSWORD') AS decrypt FROM users WHERE name = 'SPECIFIED_USERNAME_HERE'";
$Recordset1 = mysql_query($query_Recordset1, $access) or die(mysql_error());
$row_Recordset1 = mysql_fetch_assoc($Recordset1);
$totalRows_Recordset1 = mysql_num_rows($Recordset1);
?>
[/code]

I'd like to be able to pass that unencrypted password to the 'decrypted' variable based on the session username, similar to the code below:
[code]
$colname_Recordset1 = "-1";
if (isset($_SESSION['MM_Username'])) {
  $colname_Recordset1 = (get_magic_quotes_gpc()) ? $_SESSION['MM_Username'] : addslashes($_SESSION['MM_Username']);
}
mysql_select_db($database_access, $access);
$query_Recordset1 = sprintf("SELECT * FROM users WHERE name = '%s'", $colname_Recordset1);
$Recordset1 = mysql_query($query_Recordset1, $access) or die(mysql_error());
$row_Recordset1 = mysql_fetch_assoc($Recordset1);
$totalRows_Recordset1 = mysql_num_rows($Recordset1);
[/code]


Any suggestions? I'm ready to give up and keep them in plain-text. The problem is that I'm storing several set of password to pass on to other forms on other server (sort of a half-assed single sign-on password repository). So I NEED to be able to pass them unencrypted.