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To affix a digital signature to a message, the sender must
first create a message digest by applying a cryptographic
hashing algorithm against:
A. the entire message and thereafter enciphering the message
digest using the sender's private key.
B. any arbitrary part of the message and thereafter
enciphering the message digest using the sender's private key.
C. the entire message and thereafter enciphering the message
using the sender's private key.
D. the entire message and thereafter enciphering the message
along with the message digest using the sender's private key.
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Answer: A
A digital signature is a cryptographic method that ensures
data integrity, authentication of the message, and
non-repudiation. To ensure these, the sender first creates a
message digest by applying a cryptographic hashing algorithm
against the entire message and thereafter enciphers the
message digest using the sender's private key. A message
digest is created by applying a cryptographic hashing
algorithm against the entire message not on any arbitrary
part of the message. After creating the message digest, only
the message digest is enciphered using the sender's private
key, not the message.
| Is This Answer Correct ? | 3 Yes | 0 No |
The act that describes a computer intruder capturing a stream of data packets and inserting these packets into the network as if it were another genuine message stream is called: A. eavesdropping. B. message modification. C. a brute-force attack. D. packet replay.
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Which of the following controls would be the MOST comprehensive in a remote access network with multiple and diverse subsystems? A. Proxy server B. Firewall installation C. Network administrator D. Password implementation and administration
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Corrective action has been taken by an auditee immediately after the identification of a reportable finding. The auditor should: A. include the finding in the final report because the IS auditor is responsible for an accurate report of all findings. B. not include the finding in the final report because the audit report should include only unresolved findings. C. not include the finding in the final report because corrective action can be verified by the IS auditor during the audit. D. include the finding in the closing meeting for discussion purposes only.
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