A(n) _________ can be used to preserve the integrity of a document or a message.
A. Message digest
B. Message summary
C. Encrypted message
D. None of the mentioned
Answer:A
A(n) _________ can be used to preserve the integrity of a document or a message.
A. Message digest B. Message summary C. Encrypted message D. None of the mentioned
Explanation: Encryption algorithms are used to keep the contents safe .