Cyber Quiz: Lessons 6.4-6.5

What is the primary purpose of Public Key Infrastructure (PKI)?

• To manage digital keys and certificates for secure communication and authentication

• To encrypt data using symmetric encryption algorithms

• To store and manage passwords for user authentication

• To regulate access control in a networked environment

Which component of PKI is openly shared and used to encrypt data?

• Private key

• Symmetric key

• Public key

• Session key

What is the counterpart of the public key in PKI?

• Symmetric key

• Session key

• Private key

• Encryption key

What is the primary function of the private key in PKI?

• To encrypt data

• To decrypt data encrypted with the corresponding public key

• To authenticate users in a networked environment

• To authorize access to digital certificates

What is the purpose of key escrow in PKI?

• To securely store digital certificates

• To manage the distribution of public keys

• To hold a copy of a user's private key in case of loss or specific legal circumstances

• To authenticate the identities of users and devices in a network

Which entity typically holds a copy of a user's private key in key escrow?

• The user's Internet Service Provider (ISP)

• A trusted third party

• The user's computer

• A government agency

What is the significance of PKI in online transactions?

• It ensures regulatory compliance.

• It encrypts data using symmetric encryption algorithms.

• It provides secure communication, digital signatures, and ensures the integrity and authenticity of data.

• It manages access control for networked environments.

What does PKI stand for?

• Personal Key Infrastructure

• Public Key Infrastructure

• Private Key Infrastructure

• Protected Key Infrastructure

What does a Certificate Authority do in PKI?

• Encrypts messages

• Decrypts messages

• Issues and vouches for digital certificates

• Manages private keys

What is the purpose of an offline Certificate Authority?

• To issue digital certificates

• To manage the process of revocation

• To protect the root certificate

• To directly issue certificates