Question

A preferable cryptographic algorithm should have a good avalanche effect.

(a) True

(b) False

The question was asked by my college professor while I was bunking the class.

The question is from The Data Encryption Standard (DES) and It’s Strength in chapter Block Ciphers and the Data Encryption Standard of Cryptograph & Network Security

Answer 1

Right option is (a) True

Easy explanation: Thus statement is true as a change in one bit of the plaintext or one bit of the key should produce a change in many bits of the ciphertext. This is referred to as the avalanche effect.