In this (largely speculative) paper I want to suggest that certain ideas which have recently been developed by knowledge engineers can fruitfully be applied in the educational context. I have two main reasons for thinking that this is so: firstly, ideas from knowledge engineering have been applied in the past with some success; secondly, over that last five years or so there has been a paradigm...

In this paper, we propose a new stream cipher construction based on block cipher design principles. The main idea is to replace the building blocks used in block ciphers by equivalent stream cipher components. In order to illustrate this approach, we construct a very simple synchronous stream cipher which provides a lot of flexibility for hardware implementations, and seems to have a number of ...

We present a novel approach for preprocessing systems of polynomial equations via graph partitioning. The variable-sharing graph of a system of polynomial equations is defined. If such graph is disconnected, then the corresponding system of equations can be split into smaller ones that can be solved individually. This can provide a tremendous speed-up in computing the solution to the system, bu...

Related-key and chosen IV attacks are well known cryptanalytic tools in cryptanalysis of stream ciphers. Though the related-key model is considered to be much more unrealistic scenario than the chosen IV model we show that under certain circumstances the attack assumptions may become equivalent. We show that the key differentiation method induces a generic attack in a related-key model whose ti...

The purpose given work emerges the delimitation of subject to anthropology and culturology on attitude them sciences art in analogies with scientifically-artistic complex trivium-quаdrivium Muddle ages Renaissance. methodological base is a hermeneutic-cоmpаrаtive method, outgoing from intonation approach, accepted science, as musicology-science literature linguistics up heory kinematograph defi...

The humanities have not enjoyed preeminence in academe since the Scientific Revolution marginalized the old trivium. But they long continued to play a subordinate educational role by helping constitute the distinguishing culture of the elite. Now even this subordinate role is becoming expendable as devotees of the profit motive seek to reduce culture to technological delivery of cultural produc...

We show how short cycles in the state space of a cryptographic algorithm can be used to mount a fault attack on its implementation which results in a full secret key recovery. The attack is based on the assumption that an attacker can inject a transient fault at a precise location and time of his/her choice and more than once. We present an algorithm which uses a SAT-based bounded model checkin...

Efficient cryptographic implementations are a fundamental factor in the achievement and dissemination of new computerized applications. In some recent environments with (very) limited resources such as smart cards, sensor networks or RFID tags, standard algorithms may not be completely adapted.Consequently, the design of new solutions for low-cost cryptography is sometimes necessary and is at l...

....................................................................................................................... II Dedication .............................................................................................................. iv Acknowledgements ..................................................................................................v List of Tables ....................