Abstract :

The Rapid Evolution Of Blockchain Technology Has Intensified The Demand For Secure, Efficient, And Quantum-resistant Digital Signature Mechanisms. Traditional Public-key Signatures—including RSA And Elliptic Curve Schemes—face Significant Vulnerabilities In The Presence Of Quantum Algorithms Such As Shor’s Algorithm, Which Can Efficiently Solve Discrete Logarithm And Factoring Problems [1], [3], [8]. Classical Signature Approaches, Including Those Based On Group Signatures And Identification Schemes [2], [5], [6], Though Robust In Conventional Settings, Lack Resistance To Emerging Quantum Threats. Recent Advancements In Lattice-based Cryptography Provide A Promising Foundation For Constructing Quantumsecure Primitives Due To Their Reliance On Hard Problems Such As Learning With Errors (LWE) And Module Lattices [9], [10], [14]. Post-quantum Schemes Such As NTRU [11] And CRYSTALSDilithium [15], Endorsed During The NIST Standardization Process [13], Offer Strong Security Guarantees While Maintaining Acceptable Computational Efficiency For Realworld Systems [16]. Meanwhile, Blockchain Systems—pioneered By Bitcoin [17] And Expanded Through Decentralized Architectures Such As Ethereum And IPFS [21], [22]—heavily Rely On Digital Signatures For Transaction Authentication, Integrity, And Consensus Validation [18], [19], [23]. However, Current Blockchain Infrastructures Typically Utilize Elliptic-curve-based Signatures, Which Are Inherently Vulnerable To Quantum Attacks [1], [7], [8]. This Creates An Urgent Need For Integrating Post-quantum Secure Signatures To Ensure Long-term Resilience. Recent Studies Have Explored Lightweight And Scalable Post-quantum Signature Schemes Tailored For Decentralized Applications [24], [25], Yet Challenges Remain In Balancing Signature Size, Computational Overhead, And Compatibility With Blockchain Consensus Protocols. Keywords : Lattice-based Cryptography, Postquantum Digital Signatures, Blockchain Security, Quantum-resistant Algorithms, CRYSTALSDilithium, NTRU, Digital Signature Framework, Decentralized Applications, Cryptographic Primitives, Secure Consensus Mechanisms.

Published:

29-11-2025

Issue:

Vol. 25 No. 11 (2025)

Page Nos:

329-335

Section:

Articles

License:

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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