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Which of the following is the MOST reliable sender
authentication method?
A. Digital signatures
B. Asymmetric cryptography
C. Digital certificates
D. Message authentication code
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Answer: C
Digital certificates are issued by a trusted third party.
The message sender attaches the certificate rather than the
public key and can verify authenticity with the certificate
repository. Asymmetric cryptography is vulnerable to a
man-in-the-middle attack. Digital certificates are used for
confidentiality. Message authentication code is used for
message integrity verification.
| Is This Answer Correct ? | 10 Yes | 4 No |
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