CASP+: Public Key Infrastructure (PKI) Quiz

What does PKI provide tools for?

• Hashing messages

• Data storage

• Digital signatures

• Symmetric encryption

How does public key cryptography solve the problem of distributing encryption keys?

• By enabling a safe method for exchanging keys

• By hashing the message

• By encrypting the message with the private key

• By using symmetric encryption

What is used to decrypt the hash for integrity and authentication?

• Public key

• Symmetric key

• Private key

• Digital certificate

How are owners of public keys confidently identified?

• By using symmetric encryption

• By using digital certificates

• By storing keys in browsers

• By hashing messages

What can be the cause of severe negative impacts if lost?

• Symmetric key

• Digital certificate

• Public key

• Private key

What defines the requirement for a copy of private keys to be securely stored?

• Key escrow arrangement

• Hashing messages

• Symmetric encryption

• Digital certificate