Which of the following is a type of cryptanalysis that applies primarily to block ciphers but can also be used against stream ciphers and hashing functions and works by examining how differences in input affect the output?
A) integral
B) differential
C) related key
D) XSL

Question

Quizplus · Accepted Answer

Differential cryptanalysis is a type of cryptanalysis that works by analyzing the differences that exist between pairs of plaintexts and their corresponding ciphertexts. This technique applies primarily to block ciphers but can also be used against stream ciphers and hashing functions. By examining how differences in input affect the output, an attacker can gain insight into the structure of the cipher and eventually recover the secret key. In contrast, integral cryptanalysis (A) focuses on analyzing the behavior of a cipher when certain inputs cause it to go through specific internal states. Related key (C) attacks exploit weak key schedules by examining the behavior of a cipher when its key is modified in specific ways. XSL (D) is an encryption algorithm that features a unique substitution-permutation network design, but it is not a type of cryptanalysis.

Which of the Following Is a Type of Cryptanalysis That