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Journal of the Ural Federal district Information security

Comparative analysis of existing key exchange protocols for symmetric cryptosystems

Яна Николаевна Крохалева, Elena Krotova

Published Jan 1, 2019• 0 citations
Publisher

Abstract

This article is devoted to the current problem - the distribution of keys in cryptographic systems. In the work, two basic methods of key distribution, which are currently used in the designof cryptographic systems, are examined and compared in detail. The Diffie-Hellman algorithmis the primary key distribution method in existing protocols for automated distributed systems.The technologies of quantum cryptography are getting more and more development and require analysis and comparison with other methods of classical cryptography regarding competitiveness.

DOI
10.14529/secur190404

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This article is devoted to the current problem - the distribution of keys in cryptographic systems. In the work, two basic methods of key distribution, which are currently used in the designof cryptographic systems, are examined and compared in detail. The Diffie-Hellman algorithmis the primary key distribution method in existing protocols for automated distributed systems.The technologies of quantum cryptography are getting more and more development and require analysis and comparison with other methods of classical cryptography regarding competitiveness.
This article is devoted to the current problem - the distribution of keys in cryptographic systems. In the work, two basic methods of key distribution, which are currently used in the designof cryptographic systems, are examined and compared in detail. The Diffie-Hellman algorithmis the primary key distribution method in existing protocols for automated distributed systems.The technologies of quantum cryptography are getting more and more development and require analysis and comparison with other methods of classical cryptography regarding competitiveness.
The current technological advancements in quantum computing pose a threat to traditional key exchange protocols such as Rivest-Shamir-Adleman (RSA), Diffie-Hellman (DH), and Elliptic Curve Diffie-Hellman (ECDH). One of the most important quantum algorithms is Shor's algorithm, which can easily defeat traditional approaches that rely on complex mathematical computations. Instead, the security of the key exchange protocol is provided by quantum cryptographic applications known as quantum key distribution (QKD) protocols, which are based on quantum mechanical principles. QKD provides a secure substitute for key exchange. This paper examines the security of both traditional and quantum key exchange techniques. Using simulation tools such as Qiskit and NetSquid, we model QKD-based communication channels and analyze key rate performance, error rates, and scalability in comparison to classical cryptographic techniques. This paper introduces the emergence of current quantum safe encryption techniques by offering a standardized comparison of key exchange protocols and their applicability to future secure networks. The insights derived from our simulations provide valuable guidance for researchers, industry practitioners, and policymakers in determining the optimal path toward quantum-secure communication infrastructures.
Quantum cryptography is anew branch of physics and cryptography which exploit quantum mechanical phenomena to guarantee the secrecy of cryptographic keys. This paper introduces the basic concepts, problems and methods of quantum key distribution. It introduces some basic knowledge of quantum mechanics and explains how these physical laws can be used in cryptography. The basic protocols of quantum cryptographic used for key distribution based on entangled polarization photons pair are also presented and assessed. The well known concepts based on entangled pairs of photons (Ekert) schemes are presented. In these schemes Alice and Bob perform measurements on each photon along one of two, three or four directions given by unit vectors and (i, j = 1, 2, 3,4) respectively. Therefore the combinations are used from Alice and Bob is four, nine, or sixteen with respect to number of measurement directions (i = 2, 3 or 4) respectively. The analysis and comparative study between these versions are presented
Quantum cryptography is anew branch of physics and cryptography which exploit quantum mechanical phenomena to guarantee the secrecy of cryptographic keys. This paper introduces the basic concepts, problems and methods of quantum key distribution. It introduces some basic knowledge of quantum mechanics and explains how these physical laws can be used in cryptography. The basic protocols of quantum cryptographic used for key distribution based on entangled polarization photons pair are also presented and assessed. The well known concepts based on entangled pairs of photons (Ekert) schemes are presented. In these schemes Alice and Bob perform measurements on each photon along one of two, three or four directions given by unit vectors and (i, j = 1, 2, 3,4) respectively. Therefore the combinations are used from Alice and Bob is four, nine, or sixteen with respect to number of measurement directions (i = 2, 3 or 4) respectively. The analysis and comparative study between these versions are presented
Quantum computing and quantum cryptography are two areas of research that have the potential to transform modern computing and communication. Quantum computing promises to solve computational problems that are beyond the reach of classical computers, while quantum cryptography provides a way to secure communication channels that is immune to eavesdropping. Quantum cryptography is one of the emerging topics in the field of computer industry. This article focuses on quantum cryptography and how this technology makes a valuable contribution to an intensive defense strategy of completely secure key distribution. The scope of this article covers the weaknesses of modern digital cryptographic systems, the basic concepts of quantum cryptography, the practical implementations of this technology, and its limitations. , and finally the future direction that quantum cryptography is headed. We describe the result of an apparatus and protocol designed to perform quantum key distribution, whereby two users do not share any secret information (no private or public keys are known). previously known) initially exchanges a random quantum transmission consisting of veryweakly polarized light rays. In particular, readers can explore the following topics in depth: current cryptographic schemes (symmetric and asymmetric), the difference between quantum and classical computing, challenges of quantum computing, quantum algorithms (Shor and Grover), public key cryptographic schemes affected, symmetry affected schemes, impact on hash functions and post-quantum cryptography