Post-Quantum Cryptographic Architecture for Secure Banking: Lattice-Based Implementation with Blockchain Integration

Author(s)	Chandra Sekhar Oleti
Country	United States
Abstract	The exponential advancement of quantum computing poses unprecedented threats to conventional cryptographic systems employed in banking infrastructure. This paper presents a comprehensive quantum-enhanced cryptographic framework that integrates post-quantum algorithms with distributed ledger technologies to establish resilient financial security systems. Through systematic analysis of lattice-based cryptography, hash-based signatures, and multivariate cryptographic schemes, this research demonstrates significant improvements in computational security while maintaining operational efficiency. The proposed framework achieves 99.7% security resilience against quantum attacks while reducing transaction processing overhead by 23% compared to traditional RSA-based systems. Experimental validation across simulated banking environments reveals enhanced performance metrics in key generation, digital signatures, and secure communication protocols. The integration of quantum-resistant algorithms with blockchain-based consensus mechanisms provides a robust foundation for future-proof banking security architectures.
Keywords	Post-quantum cryptography, Banking security, Distributed ledger, Lattice-based algorithms, Quantum resistance
Published In	Volume 6, Issue 2, March-April 2024
Published On	2024-03-07
DOI	https://doi.org/10.36948/ijfmr.2024.v06i02.55514

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