CRYPTOGRAPHICALLY SECURE MULTIPLE CRITERIA OPTIMAL DECISION-MAKING SYSTEM
Zbigniew Kotulski, M. Curie-Skłodowskiej · 2004
In this work we present the multiple criteria optimal decision-making system (protocol) that guarantees the cryptographic safety of the whole process, and, in particular, the confidentiality and foreseeable realization. With solving multiple criteria questions, it is worth to pay attention on determination of several key parameters. First of them is function of the criterion, which defines criteria space. In described case such a function is generated dynamically, and in dependence on earlier determined admissible solutions and from received preliminary solutions. The essential element of the system is qualification of report of dominance, which lets to describe criteria space. The relations of dominance are set partly in a moment of formulating the problem and in the moment of finding a part of its solutions. In the described case we used cryptographic modules, thanks to which confidentiality, integrity as well as non-repudiation of the transmitted information are kept. The mentioned level of protection of information is obtained, mainly, by using the digital signature, hybrid cryptographic systems, and secure threshold schemes of secret sharing. Thanks to use cryptographic methods, the system can function as an element of larger architecture, with simultaneous keeping the safety requirements.