e that cannot be forged. It is a computed digest of the text that is encrypted with the sender p
rivate key and sent along with the text message. The recipient decrypts the signature with the sender’s public key and recomputes the digest from the received text. If the digests match, the message is authenticated and proved intact from the sender. [Computer and Information Sciences] 
n., In electronic commerce, a system to confirm the identity of a message's sender as well as the authenticity and integrit
y o