Hardware-Anchored Forensic Identity (HAFI): A Decentralized Protocol for Immutable Data Authorship using Hardware Entropy in Kali Linux

This technical paper introduces the HAFI (Hardware-Anchored Forensic Identity) protocol, a novel methodology developed in a Kali Linux environment to establish a non-repudiable link between digital assets and the physical machine of origin. In an era dominated by AI-generated content and sophisticated digital forgery, traditional software-based metadata is no longer sufficient to prove authorship. The HAFI protocol addresses this by extracting Hardware Physical Unclonable Functions (PUF)—specifically the System UUID and CPU micro-architectural signatures—to generate a unique "Computer DNA" (DNA-C). By cryptographically binding this hardware signature to a specific file via Asymmetric RSA-4096 signing, the protocol ensures: 1. Hardware-Level Origin Proof: The file is inextricably tied to the physical workstation. 2. Absolute Integrity: Any alteration of the document, even by a single bit, invalidates the forensic seal. 3. Decentralized Verification: Authors can prove the "Proof of Existence" and "Proof of Ownership" without relying on third-party notaries or centralized authorities. This study demonstrates the practical implementation of the protocol through a CLI-based workflow, providing a robust toolset for researchers, journalists, and authors to protect their intellectual property against digital volatility and cyber-spoofing. 3. Keywords • Cybersecurity • Digital Forensics • Hardware Identity • Cryptography • Data Integrity • Asymmetric Encryption • Kali Linux • Hardware Security Modules (HSM) • Open Source Intelligence (OSINT) • Digital Authorship