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A Hybrid Encryption Framework Combining Classical, Post-Quantum, and QKD Methods

Published: September 9, 2025 | arXiv ID: 2509.10551v1

By: Amal Raj, Vivek Balachandran

Potential Business Impact:

Protects secrets from future super-powerful computers.

Business Areas:
Quantum Computing Science and Engineering

This paper introduces a hybrid encryption framework combining classical cryptography (EdDSA, ECDH), post-quantum cryptography (ML-DSA-6x5, ML-KEM-768), and Quantum Key Distribution (QKD) via Guardian to counter quantum computing threats. Our prototype implements this integration, using a key derivation function to generate secure symmetric and HMAC keys, and evaluates its performance across execution time and network metrics. The approach improves data protection by merging classical efficiency with PQC's quantum resilience and QKD's key security, offering a practical transition path for cryptographic systems. This research lays the foundation for future adoption of PQC in securing digital communication.

Country of Origin
πŸ‡ΈπŸ‡¬ Singapore

Page Count
5 pages

Category
Computer Science:
Cryptography and Security