Mitigating Quantum Threats: A Hybrid Cryptographic Framework For Secure Data Protection In The Quantum Era

Abstract

Quantum computing provides an imminent threat to conventional cryptographic schemes; algorithms run on quantum computers directly risk the public encryption keys used in these types of cryptosystems.  In this paper, we present a hybrid cryptosystem that combines pre-quantum algorithms with post-quantum ones to withstand quantum assaults.  We simulate conventional and quantum assaults on encrypted data and demonstrate that the suggested hybrid is more resistant to quantum threats.  To ensure the model's validity, performance evaluations on time-to-crack and resource efficiency are carried out.  Our findings indicate hybrid cryptography as an intermediate approach in the quantum realm.