The video tutorial explains the differences between symmetric and asymmetric encryption, introduces the rosary protocol, and discusses public key infrastructure (PKI). It also covers hashing algorithms like MD5 and SHA, highlighting their roles in PKI.

What is a key difference between symmetric and asymmetric encryption?

• Symmetric encryption is faster than asymmetric encryption.

• Asymmetric encryption uses the same key for encryption and decryption.

• Symmetric encryption uses two keys, while asymmetric uses one.

• Asymmetric encryption is less secure than symmetric encryption.

Which of the following best describes a rosary protocol?

• A technique for compressing data before transmission.

• A protocol for establishing a secure connection over a network.

• A protocol for secure communication using public and private keys.

• A method for encrypting data using a single key.

What does PKI stand for?

• Public Key Infrastructure

• Private Key Integration

• Public Key Interchange

• Private Key Infrastructure

Which hashing algorithm is known for its 128-bit hash value?

• RSA

• AES

• MD5

• SHA

How are hashing algorithms like MD5 and SHA used in PKI?

• They generate private keys for secure communication.

• They create digital signatures to verify data integrity.

• They compress data for faster transmission.

• They encrypt data using public keys.