Computer-Networks

Question 345

A cryptographic system that uses only symmetric key cryptography cannot provide digital signature because :

A	Symmetric key cryptography is computationally infeasible.
B	Symmetric key cryptography involves key distribution.
C	Symmetric key cryptography is unreliable.
D	Digital signature requires a pair of private – public keys.

Question 345 Explanation:

Digital signature requires a pair of private-public keys, due to which symmetric key cryptography cannot provide digital signature.

Correct Answer: D

Question 345 Explanation:

Digital signature requires a pair of private-public keys, due to which symmetric key cryptography cannot provide digital signature.