Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
What is the primary purpose of a Feistel cipher's block size?
What is the primary purpose of a Feistel cipher's block size?
- To decrease encryption/decryption speed
- To increase encryption/decryption speed
- To achieve greater resistance to brute-force attacks
- To achieve greater security through diffusion (correct)
Why is a larger key size desirable in a Feistel cipher?
Why is a larger key size desirable in a Feistel cipher?
- To achieve greater security through diffusion
- To decrease encryption/decryption speed
- To achieve greater resistance to brute-force attacks (correct)
- To increase encryption/decryption speed
What is the tradeoff associated with larger block sizes in a Feistel cipher?
What is the tradeoff associated with larger block sizes in a Feistel cipher?
- Decreased encryption/decryption speed (correct)
- Increased encryption/decryption speed
- Reduced security and diffusion
- Increased resistance to brute-force attacks
Why has the new AES chosen a 128-bit block size instead of the traditional 64-bit block size?
Why has the new AES chosen a 128-bit block size instead of the traditional 64-bit block size?
Signup and view all the answers
What effect does a larger key size have on encryption/decryption speed in a Feistel cipher?
What effect does a larger key size have on encryption/decryption speed in a Feistel cipher?
Signup and view all the answers
Flashcards are hidden until you start studying
