validate username & password

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Hi, I could developed employee database.I use Vb.net as front end and ms access as back end. In single database table i include all employee information (also user id and password). I placed separate log in form for employee. Each person has separate log id and password. I try to structure log in form. But its not connected.
I want help ...........

Posted 18-Oct-11 2:33am

ckulasekaran

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hitech_s 18-Oct-11 8:37am

plz provide your code

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OriginalGriff · Answer 1 · 2011-10-18T03:25:00

You don't really want the form connected to the database: you want to wait for the user to press the "OK" or "Login" buttons, then validate the data.
The normal procedure is to hold a hashed password in the database (MD5 or preferably SHA) and retrieve the record which has a matching login id. You then generate the hash from the data they have entered (id and password) and compare that to the value returned from the DB. If it matches, they they are ok to login, if it doesn't they aren't.

There is a link here which covers the hashing - it's in C# but it translates easily: Password Storage: How to do it.[^]