A Fuzzy Logic-Based Cryptographic Framework For Real-Time Dynamic Key Generation For Enhanced Data Encryption

TL;DR

This paper tackles vulnerabilities of static cryptographic keys by proposing a fuzzy logic based framework that generates encryption keys from real time system entropy bound to hardware trust. Key derivation combines user input, fuzzy entropy computed from entropy sources and timestamp with a TPM sealed secret to produce a 256 bit key via PBKDF2-HMAC-SHA256. Encryption uses AES-GCM with the derived key and a decryption gate based on a key match score against a threshold to ensure context aware access. Results report high entropy values, low latency and strong resilience to replay and key leakage, suggesting practical applicability in cloud, edge, and zero trust environments.

Abstract

With the ever-growing demand for cybersecurity, static key encryption mechanisms are increasingly vulnerable to adversarial attacks due to their deterministic and non-adaptive nature. Brute-force attacks, key compromise, and unauthorized access have become highly common cyber threats. This research presents a novel fuzzy logic-based cryptographic framework that dynamically generates encryption keys in real-time by accessing system-level entropy and hardware-bound trust. The proposed system leverages a Fuzzy Inference System (FIS) to evaluate system parameters that include CPU utilization, process count, and timestamp variation. It assigns entropy level based on linguistically defined fuzzy rules which are fused with hardware-generated randomness and then securely sealed using a Trusted Platform Module (TPM). The sealed key is incorporated in an AES-GCM encryption scheme to ensure both confidentiality and integrity of the data. This system introduces a scalable solution for adaptive encryption in high-assurance computing, zero-trust environments, and cloud-based infrastructure.

Figures (6)

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• Figure 2: Encryption Process
• Figure 3: Decryption Process
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