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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control)
Yerzhan Seitkulov
L.N. Gumilyov Eurasian National University
Computer Science & IT

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Fault-tolerant backup storage system for confidential data in distributed servers Olzhas Tasmagambetov; Yerzhan Seitkulov; Ruslan Ospanov; Banu Yergaliyeva
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 21, No 5: October 2023
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v21i5.25305

Abstract

This article addresses the critical issue of securing backup storage for confidential data, a key concern in safeguarding the operations of critical information systems dealing with extensive amounts of sensitive information. The study proposes a novel cryptographic fault-tolerant backup storage system for confidential data, leveraging cryptographic algorithms and protocols. These protocols enable message encryption, ensuring decryption is only possible after a specified time period. The proposed system combines various distributed key generation protocols, proactive secret sharing protocols, asymmetric encryption algorithms, and digital signature algorithms. By employing such cryptographic protocols, it becomes feasible to develop and implement a robust, fault-tolerant service for backing up confidential data.
Authentication and key distribution protocol based on Diffie-Hellman algorithm and physically unclonable function Victor A. Yakovlev; Dina Zh. Satybaldina; Eldor Egamberdiyev; Yerzhan Seitkulov
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 22, No 2: April 2024
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v22i2.25705

Abstract

Based on the modified Diffie-Hellman (DH) protocol, a key distribution scheme between two correspondents over open communication channels is considered. The correspondents communicate through a trusted entity. An attacker can control the communication channels between the correspondents and the channels between the correspondents and the trusted authority (TA) and perform active attacks there, including a man-in-the-middle attack. DH authentication protocol using physically unclonable functions (PUF) is proposed. A formalized PUF model based on the class of universal hash functions is presented. Namely, it is proposed to use the class of strictly universal hash functions developed by Wegman and Carter. A polynomial dependence of the possible number of PPUs on the number of answers has been proven. Requirements for PPUs suitable for authentication systems are formulated. The protocol has been analyzed, and its security has been proved
Co-Authors Banu Yergaliyeva Dina Zh. Satybaldina Eldor Egamberdiyev Olzhas Tasmagambetov Ruslan Ospanov Victor A. Yakovlev