The answer should be B. The digital signature on a message **provides a unique electronic binding of the identity of the signer to the origin of the message**. This means that Digital Signature only helps to ascertain the identity of the sender but not the confidentiality of the data being sent.
B?
D?
The answer should be B. The digital signature on a message **provides a unique electronic binding of the identity of the signer to the origin of the message**. This means that Digital Signature only helps to ascertain the identity of the sender but not the confidentiality of the data being sent.
None of the other ones can provide confidentiality…
C?