But, the whole encryption algorithm boils down to a simple Affine-Hill Cipher where only one component is generated dynamically for each pixel encryption. Since the relationship between the plaintext and the ci
2.2 Bernstein-Vazirani algorithm In 1993, Bernstein and Vazirani [19] proposed a quantum algorithm for determining the slope of an affine function (BV problem). Utilizing quantum superposition of queries, represented as Σx,yλx,y|x⟩|y⟩↦Σx,yλx,y|x⟩|y⊕f(x)⟩, the BV alg...
Our method extends the Wagner algorithm to truncated sums, as is done in the final transform in LASH. 1 Introduction The LASH hash function [2] is based upon the provable design of Goldreich, Goldwasser, and Halevi (GGH) [6], but changed in an attempt to make it closer to practical. ...
We will be using a 'hill-climbing' algorithm to find the correct key. For this approach, we need a way of determining how similar a piece of text is to english text. This is called rating the 'fitness' of the text. A piece of text very similar to english will get a high score (...
algorithm to extract the secret key from such white-box DES implemen- tations. The cryptanalysis is a differential attack on obfuscated rounds, and works regardless of the shielding external encodings that are applied. The cryptanalysis has a average time complexity of 2 ...
In the modified proposed algorithm, the secret keys of a 3D Arnold map are shared through an ECDH scheme. The representation of key exchange can be performed similarly to the Diffie–Hellman protocol, and it is a relatively difficult task to find a suitable elliptical curve. The curve should ...
used to cryptanalyse just about any algorithm that enciphers text. Much of this will be slightly mathematical, but we will try to provide programs for everything. This means that in the event that you don't completely understand the theory of a technique, you should still be able to use ...
The affine equivalence algorithm (AE) has complexity O(n~32~(2n)). The algorithms are efficient and allow to study linear and affine equivalences for bijective S-boxes of all popular sizes (LE is efficient up to n ≤ 32). Using these tools new equivalent represe...
For a pair of n * n-bit permutations the complexity of the linear equivalence algorithm (LE) is O(n~32~n). The affine equivalence algorithm (AE) has complexity O(n~32~(2n)). The algorithms are efficient and allow to study linear and affine equivalences for bijective S-boxes of all ...
The cipher is approximated using a linear (or affine) expression: P r[fr(X) ⊕ gr(Y ) = hr( ¨ k)] = 1 + γ (4) 2 where fr, gr and hr denote linear or affine functions, and γ the bias; all are independ...Heys, H.M.: A tutorial on linear and differential cryptanalysis...