Podcast
Questions and Answers
What is a key feature that distinguishes stream ciphers from block ciphers?
What is a key feature that distinguishes stream ciphers from block ciphers?
In the context of stream ciphers, what does multi-message security aim to address?
In the context of stream ciphers, what does multi-message security aim to address?
What analogy is drawn between stream ciphers and one-time pad schemes at a high-level?
What analogy is drawn between stream ciphers and one-time pad schemes at a high-level?
What is the primary function of the XOR operation in stream ciphers?
What is the primary function of the XOR operation in stream ciphers?
Signup and view all the answers
How does the size of the key space in stream ciphers compare to block ciphers?
How does the size of the key space in stream ciphers compare to block ciphers?
Signup and view all the answers
What is the main difference between the key space and the message space in the stream cipher discussed?
What is the main difference between the key space and the message space in the stream cipher discussed?
Signup and view all the answers
How does the stream cipher differ from a one-time pad (OTP) in terms of key generation?
How does the stream cipher differ from a one-time pad (OTP) in terms of key generation?
Signup and view all the answers
Why is the encryption process or system called a stream cipher?
Why is the encryption process or system called a stream cipher?
Signup and view all the answers
In the context of the stream cipher, what does XOR operation refer to?
In the context of the stream cipher, what does XOR operation refer to?
Signup and view all the answers
Why is it important for the pseudo random generator in a stream cipher to extend or stretch bits?
Why is it important for the pseudo random generator in a stream cipher to extend or stretch bits?
Signup and view all the answers
