how to generate a unique token which expires after 24 hours?

Question

I have a WCF Webservice which checks if the user is valid.

If the user is valid I want to generate a token which expires after 24 hours.

public bool         


        

Answer 1

you need to store the token while creating for 1st registration. When you retrieve data from login table you need to differentiate entered date with current date if it is more than 1 day (24 hours) you need to display message like your token is expired.

To generate key refer here