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• SOFTWARE AND HARDWARE FOR MOBILE MEANS INFORMATION SUPPORT ONBOARD SYSTEMS WITH USE OF VISION SYSTEM

  S.M. Sokolov, А. А. Boguslavsky, S.A. Romanenko

  2020-07-10

  Abstract ▼

  Research objective is increase of autonomous mobile means information support efficiency with use of visual data and technologies of its development due to rational use of nonconventional calculators and special preparation of algorithmic providing. Use of nonconventional, heteroge-neous computing means allows to expand significantly a circle of visual data processing problems on the real time scale and, thereby, to increase situational awareness of autonomous robots and efficiency of its receiving. Rational use of nonconventional calculators demands essential altera-tion of algorithmic providing. The majority of visual data algorithms were developed counting on realization on traditional, von Neumann architecture of calculators and demand essential efforts for realization on parallel structures and developments of special programming tools. In work the emphasis on researches in the area use FPGA is placed and a number of approaches in special preparation of necessary algorithmic is considered. As model, demonstration examples of use of nonconventional calculators realization of such algorithms of visual data processing which areactively used in a wide range of information support problems of purposeful movements of mobile robot is considered. Preparation and realization on FPGA of such algorithms as creation of histo-grams, an optical flow calculation, segmentation of images is described. Results of experiments are given in the operating models of airborne computers. As basic data the visual data collected at the movement of mobile means in the conditions of habitat are used. All used software is executed on the basis of the unified software framework of the real time vision systems of domestic devel-opment. In the conclusion further steps in the specified direction, taking into account aspiration to use of domestic software and hardware are discussed.

• DATA ENCRYPTION IN EDMS BASED ON BLOCKCHAIN TECHNOLOGIES

  К.S. Romanenko , Е.А. Ishchukova , N. B. Elchaninova

  99-110

  2025-07-24

  Abstract ▼

  The article discusses the issues of storing confidential and personal data in electronic document management systems. The possibility of storing confidential and personal data in electronic document management systems based on blockchain technologies is considered. One of the key characteristics of blockchain is the openness of data. All transactions entered into the blockchain are visible to all network participants. This can become a serious problem when storing sensitive data, such as personal information, bank details or medical history. storage of personal data, since the blockchain platform is open. Various methods are used to hide information, including homomorphic encryption, ZK-SNARKs (zero-knowledge proofs), specialized hardware add-ons, and other methods. Previously, the authors presented a protocol for storing confidential data in blockchain systems using hybrid encryption. The paper focuses on the use of symmetric cryptography algorithms in conjunction with elliptic curve cryptography, as it is widely used in modern blockchain platforms such as Bitcoin and Ethereum. The reason for choosing elliptic curves is their high cryptographic strength with a relatively short key length, computational efficiency, and low resource requirements, which is especially important for decentralized networks with limited node computing capabilities. The article presents the results of modeling the process of generating encrypted confidential data using various encryption algorithms: ECC ElGamal, ECDH-AES, ECDH-Magma (in CTR and CBC modes). Experiments have shown that the most effective solution is to use the hybrid ECDH-AES algorithm with AES-NI support, which provides high data processing speed while maintaining a high level of security. The analysis suggests that the use of hybrid encryption in blockchain systems strikes a balance between the need to ensure privacy and preserve the key benefits of the technology – decentralization, immutability, and transparency for authorized participants. Possible formats of data presentation are considered, an experimental comparison of various encryption algorithms that can be used in electronic document management systems based on blockchain technologies is carried out.