A digital signature is required
(i) to tie an electronic message to the sender’s identity
(ii)for non repudiation of communication by a sender
(iii) to prove that a message was sent by the sender in a court of law
(iv) in all e-mail transactions
a. i and ii
b. i, ii, iii
c. i, ii, iii, iv
d. ii, iii, iv
(i) to tie an electronic message to the sender’s identity
(ii)for non repudiation of communication by a sender
(iii) to prove that a message was sent by the sender in a court of law
(iv) in all e-mail transactions
a. i and ii
b. i, ii, iii
c. i, ii, iii, iv
d. ii, iii, iv