We demonstrate the main results of the Esprit Project P6333 IDEA, lasted from June 1992 to March 1997, whose main contributors are five industrial partners from five European countries: Bull, the main contractor (France), TXTInformatica (Italy), Sema (Spain), Dutch PIT (Holland), and Bim (Belgium), and four research institutes: ECRC in Munich, INRIA in Paris, the University of Bonn, and Politec...

Since almost two decades, the block cipher IDEA has resisted an exceptional number of cryptanalysis attempts. At the time of writing, the best published attack works against 6 out of the 8.5 rounds (in the non-related-key attacks model), employs almost the whole codebook, and improves the complexity of an exhaustive key search by a factor of only two. In a parallel way, Lipmaa demonstrated that...

Large classes of weak keys have been found for the block cipher algorithm IDEA, previously known as IPES [2]. IDEA has a 128bit key and encrypts blocks of 64 bits. For a class of 2 keys IDEA exhibits a linear factor. For a certain class of 2 keys the cipher has a global characteristic with probability 1. For another class of 2 keys only two encryptions and solving a set of 16 nonlinear boolean ...

To achieve the dramatic improvements in capacity and spectral efficiency needed for fifth generation (5G) systems to accommodate the ever increasing number of users who require ubiquitous access to high volumes of wireless data, three symbiotic technological directions are independently emerging [1]: • Increasing frequency reuse through the creation of smaller cells, referred to as picoand femt...

This is a review of recent results on conformal (super)algebras. It may be viewed as an amplification of my Wigner medal acceptance speech (given in July 1996 in Goslar, Germany) reproduced in the introduction. 0 Introduction. It is a well kept secret that the theory of Kac-Moody algebras has been a disaster. True, it is a generalization of a very important object, the simple finite-dimensional...

We present a new global optimization algorithm in which the influence of the leaders in social groups is used as an inspiration for the evolutionary technique which is designed into a group architecture. To demonstrate the efficiency of the method, a standard suite of single and multi dimensional optimization functions along with the energies and the geometric structures of Lennard-Jones cluste...

treatment and cure, the closest co-operation is needed between physicians of the body, psychiatrists of the soul, and those called to be dispensers of the Word of God and of His Holy Spirit. That co-operation is not yet as close and well-informed on all sides as it should be, and for that reason is not yet as effective in ministering the healing power of God to sufferers as it should be and wil...