Trying to get encrypted data

Hello ther,

Any asistance provided will be appreciated.

I'm trying to get data that was encrypted using (wa_sha1encryption). Below is the search code.
I'm trying to see how to add the wa_sha1encryption class.

<?php
$searchgetAppDetails_1 = new WA_MySQLi_Search("getCards","0-0");
if (isset($_POST["WADbSearch1"]) || isset($_POST["WADbSearch1_x"])) {
$searchgetAppDetails_1->clearSearch();
$searchgetAppDetails_1->setSearch(array("type"=>"Value", "comparison"=>"=", "join"=>"AND"), array("cFinalNum"), "s", "".((isset($_POST["cFinalNum"]))?$_POST["cFinalNum"]:"") ."");
}
?>

As far as I'm aware, SHA1 encryption is non-reversible, i.e. impossible to decrypt. So for example, if you use SHA1-encrypted passwords, you can't search the database for the original, unencrypted password.