Certified Ethical Hacker (CEH v11) — Question 156

What two conditions must a digital signature meet?

Answer options

• A. Has to be the same number of characters as a physical signature and must be unique.
• B. Has to be unforgeable, and has to be authentic.
• C. Must be unique and have special characters.
• D. Has to be legible and neat.

Correct answer: B

Explanation

The correct answer is B because a digital signature must be both unforgeable and authentic to ensure its integrity and origin. Options A, C, and D introduce irrelevant requirements that do not pertain to the fundamental properties of digital signatures.