Encryption and Digital Signatures Flashcard

Front

Which algorithm was developed by IBM and is considered the predecessor to Triple-DES?

Back

Data Encryption Standard (DES)

Front

What is a key characteristic of Blowfish, Twofish, and Threefish algorithms?

Back

They use a variable key size, potentially up to 1024 bits.

Front

What is the primary advantage of Triple-DES (3DES) over DES? Options: a. 3DES is faster and more efficient in encryption. b. 3DES uses a simpler algorithm, making it easier to implement. c. 3DES is a more secure cipher, offering increased protection. d. 3DES was developed by Bruce Schneier.

Back

3DES is a more secure cipher, offering increased protection.

Front

What is the primary purpose of encryption?

Back

To transform readable plaintext into unreadable ciphertext.

Front

What is the term used for the original, readable message before it is encrypted?

Back

Plaintext

Front

Digital signatures are used exclusively for encrypting messages.

Back

False

Front

A digital signature can be independently verified by a central facility or registry.

Back

True

Front

Digital signatures are primarily used for sending funny memes online.

Back

False

Front

Digital signatures can prove certain characteristics of a message or file with which they are associated.

Back

True

Front

Digital signatures are only used for documents and not for emails or other digital transactions.

Back

False