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Information × Registration Number 0211U008947, 0110U004094 , R & D reports Title Protocols of providing of untraceability and authentification of information in informational systems and expansion of functionality of digital signature standards popup.stage_title Head Kovalenko Igor, Registration Date 02-12-2011 Organization V.M.Glushkov Institute of Cybernetics of NASU popup.description2 Object of research: Algorithms for the blind, the collective and the collective blind digital signature (DS). Aim: develop protocols blind, collective and collective blind digital signature, using the basic procedure of forming and checking the authenticity of the DS recommended by the official standards of Ukraine. Methods: group theory, the theory of finite fields, the theory of elliptic curves, computational methods of algebra and number theory. The results of the work: developed and implemented protocols blind, collective and collective blind signature based on the use of standard DS Ukraine as the basic algorithm; the estimation of the proposed security protocols on different types of attacks; formulated requirements to the size of the parameters used in algorithms authentication information, the analysis of security protocols collective blind signature based on the standard DS Ukraine, on attacks aimed at calculating the private key of one of the signatories, which made the rest of the signatories; developed scenarios for the application of the results obtained in applied science evaluated the possibility of extending the functionality of standard DS others. Keywords: the blind digital signature, cyclic group,finite field , elliptic curve asymmetric cryptographic algorithms. Product Description popup.authors Завірюха О.В. Коваленко І.М. Кочубінський А.І. Кошкіна Н.В Савчук М.М. Синявский В.Ф. Фаль О.М. popup.nrat_date 2020-04-02 Close