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A digital signature contains a message digest to:
A. show if the message has been altered after transmission.
B. define the encryption algorithm.
C. confirm the identity of the originator.
D. enable message transmission in a digital format.
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Answer: A
The message digest is calculated and included in a digital
signature to prove that the message has not been altered. It
should be the same value as a recalculation performed upon
receipt. It does not define the algorithm or enable the
transmission in digital format and has no effect on the
identity of the user, being there to ensure integrity rather
than identity.
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