This thesis contains a new approach to design block ciphers, synchronous and self-
synchronizing stream ciphers and cryptographic hash functions. The goal of this approach is …

This paper gives a survey on cryptographic hash functions. It gives an overview of all types
of hash functions and reviews design principals and possible methods of attacks. It also …

Highly nonlinear balanced Boolean functions both satisfying the propagation criterion and
having almost uniform correlation values with all linear functions are very important in the …

We give a new definition of keyed hash functions and show its relation with strongly
universal hash functions and Cartesian authentication codes. We propose an algorithm for a …

In this paper we analyse SAFER K-64 and show a weakness in the key schedule. It has the
effect that for almost every key K, there exists at least one different key K*, such that for many …

This technical report provides a review of the design and analysis of block ciphers. Its format
is built around the twin ideas of design and cryptanalysis and with this in mind we present …

New potentially ‘weak’ keys for DES amd LOK Page 1 New Potentially 'Weak
' Keys for DES amd LOK (Extended Abstract) Lars Ramkilde Knudsen ~rhus University …

Use of encryption algorithms in message authentication is replaced by secure hash
functions which are often faster than encryption algorithms. Tsudik [14] has proposed three …

An electronic payment system which emulates the payments relying on classical cheques is
presented. Its main features are a high computational efficiency and low storage …

Use of encryption algorithms in message authentication is replaced by secure hash
functions which are often faster than encryption algorithms. Tsudik 14] has proposed three …