012_Public Key Infrastructure - CompTIA Security+ Sy0-701 - 1.4

Front

What does PKI stand for in the context of cryptography?

Back

Public Key Infrastructure

Front

Which of the following is a characteristic of symmetric encryption? Uses two different keys for encryption and decryption, Uses the same key for both encryption and decryption, Requires a Certificate Authority for operation, Is slower than asymmetric encryption

Back

Uses the same key for both encryption and decryption

Front

In asymmetric encryption, what is the role of the public key?

Back

It is used to encrypt data

Front

Explain why symmetric encryption might pose scalability issues in large networks.

Back

Because the same key must be shared among all users, increasing the risk of key compromise

Front

Describe a scenario where key escrow might be necessary in an organization.

Back

When an organization wants to ensure data can be decrypted even if the original user is unavailable

Front

What is the primary advantage of using asymmetric encryption over symmetric encryption?

Back

It allows secure communication without sharing a secret key.

Front

How does a Certificate Authority (CA) contribute to the trust model in PKI?

Back

By verifying the identity of entities and issuing digital certificates

Front

Analyze the potential risks associated with storing a private key without a password.

Back

It makes the private key vulnerable to unauthorized access.

Front

Evaluate the effectiveness of using a third-party key management service in a large organization.

Back

It centralizes key management, reducing the risk of key loss.

Front

Why is it important for Alice to keep her private key secure?

Back

To prevent unauthorized decryption of messages intended for her