CISIM 2008

International Conference

7th Computer Information Systems and Industrial Management Applications

    Skip Navigation Links Ostrava, The Czech Republic, June 26 - June 28, 2008

Plenary Lectures

Prof. Svein Knapskog:
New Cryptographic Primitives

New communications paradigms such as wireless communications for handheld devices have increased requirements for operating speed of relevant security mechanisms, such as encryption for confidentiality, hashing for message integrity and combined hashing and public key encryption for digital signature. Existing secure services have traditionally been implemented by employing hybrid cryptographic protocols, i.e. combinations of symmetric and asymmetric (public key) algorithms to handle both effective key management and cryptographic performance. These solutions are in increasing degree becoming obsolete by the trend to connect end users with terminals with limited storage and processing power via wireless networks, sometimes established in a totally ad hoc fashion, with little or no centralized management to organize user authorization for access to secured services. New, lightweight protocols are in increasing demand, and the cryptographic primitives necessary for implementation of such protocols also need to be adapted to these new user scenarios.

At NTNU/Q2S, research in this area has been ongoing for a period of time resulting in a number of new solutions adapted to the new paradigm encompassing mobile users of distributed communication services. In this talk, some of the general features of the new cryptographic primitives will be described. The designs are mainly based on new insight into the characteristics of quasigroups and quasigroup string operations.

Prof. Ryszard Tadeusiewicz:
Modern Methods for the Cognitive Analysis of Economic Data and Text Documents and Their Application in Enterprise Management

This article presents the subject of using information resources such as economic data and data from text documents in computer-aided business management. It is demonstrated that to make effective use of specified information resources, it is necessary to go into the contents of documents and the meaning of data, and not just to collect, process and subject them to simple analyses, e.g. statistical ones. After a literature-based review of methods used for this purpose, authors propose applying methods of semantic analysis and reasoning. Such methods, originally proposed for the automatic understanding of medical images and developed with a view to this use for a number of years, may lead to the development of UBMSS cognitive management-support systems. A general description of such a system is presented and discussed in this article.