How to use Encrypted password as parameter in C# ASP.Net

Question

I am working on creating a web application to assign user access to a database. We get a ticket to grant access to a user and the help desk person select the sql instance, enters the username and the password on the app to assign access. My issue is the connection strings are all stored in a sql database and the instance password is encrypted using hashbyte function.

How am i going to connect to the database through my C# asp.net code since the password is encrypted.The help desk person will only select the instance and not enter the login credentials

Answer 1

This kind of operation is needed to be one-way so that it cannot be decrypted. Password validation is generally done with hashing. in other words, you have hashed password inside db and when user inputs password, your application first hashes the input password then it compares hashed passwords.

but, hashing is not encryption algorithm, it is a secure one-way compression algorithm

Thus, you cannot use hashed db passwords for any purpose. users need to provide password.

You can use UserSecrets for storing encrypted password. Check this post for implementation