Unit 4 - Encryption - BIG ONE

What are the two forms of authenticated modes of operations?

• Single-sided and mutual
• Dual and unilateral
• Disconnected and mutual
• Single-sided and double-sided

Authenticated modes of encryption validate the integrity of the ciphertext, verifying it has not been modified.

• True
• False

What is a mode of operation?

• An algorithm used with a block cipher to make an encryption algorithm
• Determining whether the game difficulty is easy, medium, hard, or impossible
• Choosing whether to work with traditional medicine or black magic
• The choice on boot between running in BIOS or loading the OS

Which of the following is true about CTR mode?

• It is a block cipher acting like a stream cipher
• It authenticates and encrypts at the same time
• It is a stream cipher acting like a block cipher
• The counter decreases by one from one block to the next

What is a blockchain?

• a distributed and immutable public ledger
• A chain of block ciphers
• A series of encryption algorithms designed to secure governmental data
• None of the above

What are the two forms of authenticated modes of operations?

• Single-sided and mutual
• Dual and unilateral
• Disconnected and mutual
• Single-sided and double-sided

Authenticated modes of encryption validate the integrity of the ciphertext, verifying it has not been modified.

• True
• False

What is a mode of operation?

• An algorithm used with a block cipher to make an encryption algorithm
• Determining whether the game difficulty is easy, medium, hard, or impossible
• Choosing whether to work with traditional medicine or black magic
• The choice on boot between running in BIOS or loading the OS

Which of the following is true about CTR mode?

• It is a block cipher acting like a stream cipher
• It authenticates and encrypts at the same time
• It is a stream cipher acting like a block cipher
• The counter decreases by one from one block to the next

What is a blockchain?

• a distributed and immutable public ledger
• A chain of block ciphers
• A series of encryption algorithms designed to secure governmental data
• None of the above