ITPEC FE Morning April 2022 Question 38

PKI Key Pair Generation — identify the algorithm that creates a key pair.

In a PKI system, four algorithms serve different roles:

• •Key generation algorithm — creates the public/private key pair (e.g., RSA key generation)
• •Hashing algorithm — produces a fixed-length digest from input data (e.g., SHA-256)
• •Signing algorithm — creates a digital signature using the private key
• •Signature verification algorithm — verifies a signature using the public key

Answer: b) Key generation algorithm

Why not others:
- (a) Hashing algorithm — produces a digest, does not generate keys
- (c) Signature verification algorithm — uses an existing public key to verify signatures
- (d) Signing algorithm — uses an existing private key to create signatures

Key rule: Only the key generation algorithm actually creates the key pair; all other PKI algorithms use existing keys.

AI-generated — may contain errors