Question Bank
3705 approved questions from the community
Asymmetric encryption is generally faster than symmetric encryption for encrypting large amounts of data.
A hash function that is pre-image resistant means it should be computationally infeasible to derive the original input from the hash output.
What is AES?
What is a permutation cipher?
Digital signatures prevent non-repudiation by making it impossible for the sender to deny sending a message.
What type of cipher is the Caesar cipher?
What network structure does AES use?
In the digital signature verification process, what happens after computing the hash of the target document?
What is a digital signature?
What is perfect secrecy in cryptography?
Why is AES preferred over DES in modern applications?
AES operations in Galois Field transformation use finite field arithmetic.
What is the main difference between symmetric and asymmetric cryptography?
AES is an asymmetric encryption algorithm.
What is Public Key Infrastructure (PKI)?
What role does a Certificate Authority (CA) play in PKI?
What does it mean for a hash function to be collision resistant?
What is a substitution cipher?
In symmetric cryptography, the same key is used for both encryption and decryption.
How many rounds does AES perform with a 128-bit key?