All websites that support authenticated user interactions have a password recovery feature. Usually they will email the password reset link through which you can easily recover your account by typing ...
I work in commercial telecoms and one part of our business is the leasing of computer equipment to call centers. If the customer for whatever reason gives us the equipment back (non-payment, out of ...
Suppose a server use digital signature to prove the files it sends to users. If someone steals the secret key in the server, what should it do?