i have a DB of users and their password in encrypted form. I want to let the users log in to the site using the username and password. For authentication i need to know what type of encryption is their so that i can match the entered password with the stored password. I have tried many algorithm but i am not able to workout the encryption mechanism. here is a test case
original password: alvin
Password in DB :f9b0213127225c1c74d6662dee8acca297eff9e0
Password Encryption : sha1_v2.4.
What i want to do is to create the password in DB from original password.
Any hints on how to convert the original password to the password in DB
P.S the table was created by silverstripe CMS
We are no longer using the silverstripe CMS and are converting our website to a Mobile App. So using silverstripe or its function is not an option. However we are using the member table with all the member's data in it including authentication information.