Company A submitted a bid on a contract to do work for Company B via email. Company B was insistent that
the bid did not come from Company A. Which of the following would have assured that the bid was submitted
by Company A?
A digital signature is similar in function to a standard signature on a document. It validates the integrity of the
message and the sender. The message is encrypted using the encryption system, and a second piece of
information, the digital signature, is added to the message.