Certified Information Security Manager CISM · Free Practice Question Medium
Question 48
You are the Information Security Manager of HDA Inc. You need to minimize the risk of an attacker altering a message and producing a valid hash value when sending a hashed message. What is the best method to achieve this?
- A D. Use an encryption key along with the hash
- B A. Increase the hash algorithm complexity
- C B. Apply a digital signature to the hash
- D C. Implement a secure communication channel
Reveal correct answer
Correct answer: A
Explanation
Correct Answer: D. Use of encryption key along with hash Explanation: Incorporating an encryption key along with the hash adds an extra layer of security by ensuring that even if the hash is manipulated, the encryption key will protect the integrity of the message. This dual approach enhances the overall security of the communication.Discussion
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