Re: Encrypt in Javascript and Decrypt in PHP????

The way you want it can be securely done only using asymetric encryption, which is not available to JS. Do you really need to encrypt user_id? You could use md5 to hash password with some random string, store the hash in a hidden field and erase password. On server side if the hidden field is set compare it whith a hash you create with password and the random string (keep the string as a session variable, don't pass it as a form hidden field). If the hidden hash field is not set, use normal procedure. code: server: $_SESSION[random]=create_random_string(); client: function onsubmit(form) { form.hiddenfield.value= md5( md5(form.password.value) + form.randomstring.value); form.password.value=''; return true; } server: if($_POST[hiddenfield]) { $res=mysql_query("SELECT * FROM users WHERE user='$_POST[user]'

       AND '$_POST[hiddenfield]'=MD5(CONCAT(password,$_SESSION[random]))"); 

} else { $res=mysql_query("SELECT * FROM users WHERE user='$_POST[user]'

       AND password=MD5($_POST[password]"); }

this example assumes passwords are stored as md5 hashes in the database Scott Fletcher wrote:

Here's the challenging project I'm doing. I'm trying to encrypt the user_id and password in javascript and submit it. Then have PHP to decrypt the user_id and password. The only problem I have is I don't know what javascript function or javascript algorithm that can also work the same way as the php function or php algorithm. Anybody know? Thanks, FletchSOD