Parzibyte's blog

When we migrate customers from MijoShop to OpenCart there is a little problem: the methods to hash passwords are different and thus when our customers try to login  the passwords do not match.

In this post I will show you how to migrate and fix the problem.

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Today we will see how to reset the OpenCart password (e-commerce system in PHP) manually, directly in the database; generating the hash and the salt manually with a function created by me.

Function that generates salt and new password

Here I leave the code, and the explanation at the end.

The function returns an array that has the salt and the password, the way to call it is to pass the password in plain text. You can try and use the function here.

Once you have the salt and the password just do an update of your database table.

In my case:

My table is called oc_user because when I installed OpenCart I used that prefix, in your case it can vary.

The algorithm and the way that OpenCart uses it

Thanks to OpenCart is open source we can see how it generates the salt and saves the hashes.

In its source code it implements obtaining a cryptographically secure random string and then uses sha1 to hash it, concatenating it with the user’s password.

The generation of the salt is as follows:

Generate salt for opencart password

It uses the function called token defined in helpers/general. php and then calls it, obtaining a random string of 9 digits. Then concatenate it and hash it with SHA1:

Hashed OpenCart password with SHA1

Finally, in the database it saves everything in the user table in the salt and password fields:

Salt location and user password in OpenCart database

Knowing all those things we could write a function that generates the salt and the password to be able to reset the password of a user manually in OpenCart.

In this tutorial I will show how to install OpenCart in its version 3 on a server with PHP. You can mount it directly on a server in production, or on your localhost for testing.

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