Ch 5: Cryptography Quiz 1

What is the main purpose of cryptography?

• To protect data at rest, motion, and use

• To prevent unauthorized access to information

• To create digital signatures

• To encrypt and decrypt messages

Which discipline is cryptography closely related to?

• Mathematics

• Computer Science

• Information Security

• All of the above

What is the purpose of digital signatures?

• To verify the authenticity of a message or document

• To encrypt data transmitted over insecure networks

• To protect intellectual property

• To create unique hash values

What is the key difference between symmetric and asymmetric cryptography?

• Symmetric cryptography uses the same key for encryption and decryption, while asymmetric cryptography uses different keys

• Symmetric cryptography is faster than asymmetric cryptography

• Symmetric cryptography is more secure than asymmetric cryptography

• Asymmetric cryptography is used for secure communication and data storage

What is the purpose of hash functions in cryptography?

• To encrypt and decrypt messages

• To create digital signatures

• To protect data at rest

• To verify the integrity of a message

Which encryption algorithm is considered the replacement for DES?

• 3DES

• AES

• RSA

• MD5

What is the purpose of digital certificates?

• To encrypt data transmitted over insecure networks

• To create unique hash values

• To link a public key to a particular individual

• To verify the authenticity of a message or document

What is the main purpose of protecting data at rest?

• To prevent unauthorized access to information

• To encrypt and decrypt messages

• To verify the integrity of a message

• To protect data stored on electronic devices

What is the main purpose of protecting data in motion?

• To protect data stored on electronic devices

• To prevent unauthorized access to information

• To encrypt data transmitted over insecure networks

• To create digital signatures

What is the purpose of encryption in cryptography?

• To protect data at rest

• To verify the authenticity of a message or document

• To encrypt and decrypt messages

• To create unique hash values