A digital signature is
A. a bit string giving identity of a correspondent
B. A unique identification of a sender
C. an authentication of an electronic record by trying it uniquely to a key only a sender knows
D. an encrypted signature of sender
Answer:C
A digital signature is
A. a bit string giving identity of a correspondent B. A unique identification of a sender C. an authentication of an electronic record by trying it uniquely to a key only a sender knows D. an encrypted signature of sender