Public Key Infrastructure

What does Public Key Infrastructure (PKI) primarily encompass?

• Only hardware and software for encryption.

• Policies, procedures, hardware, software, and people for managing digital certificates.

• A method for binding public keys to physical devices only.

• A system solely for revoking digital certificates.

Which characteristic is true for symmetric encryption?

• It uses two mathematically related keys for encryption and decryption.

• It is also known as public key cryptography.

• It uses a single, shared key for both encryption and decryption.

• It scales very well for large numbers of users.

What is a key characteristic of asymmetric encryption?

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

• The private key can be derived from the public key.

• Data encrypted with a public key can only be decrypted by the corresponding private key.

• Public keys must be kept secret to ensure data security.

What is the primary purpose of key escrow in an organizational setting?

• To allow individuals to manage their own private keys without organizational oversight.

• To ensure that encrypted data can be decrypted even if the original user's private key is lost or unavailable.

• To enable the public distribution of private keys for widespread access.

• To prevent government agencies from accessing encrypted data.