Storing Social Security Numbers

Question

The HR department at the company that I am currently working for has requested that I provide a system for storing employee social security numbers in our company database. The

Answer 1

You want to use some sort of reversible encryption, the stronger the better, and add some salt to the SSN. Adding salt will make it more difficult for a hacker to reverse the encryption with just the data from the database. The salt should be numeric so as to blend in with the SSN.