ICT 8 - Chapter 2 - Privacy Q&A PKI Only 🌶️

What does PKI stand for?

• Public Key Infrastructure

• Private Key Infrastructure

• Public Key Interface

• Public Key Integration

What is the main purpose of PKI?

• To enhance physical security measures.

• To provide secure communication and authentication through cryptographic key management.

• To manage user passwords securely.

• To provide data storage solutions.

What is the difference between a public key and a private key?

• A public key is shared and used for encryption; a private key is kept secret and used for decryption.

• A public key is used for both encryption and decryption.

• A private key is shared publicly for secure communication.

• A public key is kept secret while a private key is shared openly.

How does data encryption work in PKI?

• Uses a single key for both encryption and decryption.

• Uses a public key to encrypt data, which can only be decrypted by the corresponding private key.

• Relies solely on symmetric key algorithms.

• Does not involve any keys and uses hashing instead.

What is a digital signature?

• An electronic payment method.

• A software program that edits documents.

• A cryptographic method to validate the authenticity and integrity of a digital message or document.

• A physical signature scanned into a computer.

What role does a certificate authority play in PKI?

• A certificate authority audits network traffic in PKI.

• A certificate authority provides hardware security modules in PKI.

• A certificate authority issues and manages digital certificates in PKI.

• A certificate authority encrypts data in PKI.

What does non-repudiation mean in the context of PKI?

• Non-repudiation is a method to encrypt data for security.

• Non-repudiation allows parties to deny their involvement in a transaction.

• Non-repudiation ensures that parties cannot deny their involvement in a transaction or communication.

• Non-repudiation refers to the speed of transaction processing.

How does PKI ensure data integrity?

• By encrypting data only.

• By using digital signatures and hash functions.

• By relying on physical security measures.

• By using firewalls.

What are the benefits of using PKI for authentication?

• Increased costs and complexity

• Limited user access

• Reduced data integrity

• Enhanced security, non-repudiation, scalability, and trust establishment.

Can you explain how public key infrastructure functions?

• Public Key Infrastructure does not involve any form of digital certificates.

• PKI relies only on symmetric key algorithms for security.

• Public Key Infrastructure is solely used for email encryption.

• Public Key Infrastructure (PKI) enables secure communication through the use of digital certificates and public-key cryptography.