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This research aims to develop a cryptographic key generation method that does not require permanent key storage by leveraging tattoo-derived entropy and biometric data.

July 12, 20260 citationsOpen Access

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Stateless Cryptographic Key Generation using Sub-dermal Pigmentation Entropy and Multi-modal Biometric Fusion

MJMin Ho Jung

Key Points

This research aims to develop a cryptographic key generation method that does not require permanent key storage by leveraging tattoo-derived entropy and biometric data.
Developed the INK-FI mechanism utilizing sub-dermal pigmentation and multi-modal biometrics for key generation.
Implemented spatiotemporal context in the key generation process.
Validated entropy using NIST SP 800-90B and integrated post-quantum cryptography.
Achieved instantaneous zeroization of keys within < 0.1ms.
Demonstrated effective fusion of tattoo, face, iris, and fingerprint data for enhanced security.
Validated the entropy of the system using established cryptographic standards.

Abstract

This paper introduces a novel Stateless Cryptographic Key Generation (INK-FI) mechanism that completely eliminates the need for permanent key storage by utilizing sub-dermal pigmentation (tattoo) entropy, multi-modal biometrics, and spatiotemporal context. Key innovations include:1. Sub-dermal Pigmentation Entropy extraction (3D density, edge minutiae, depth).2. Multi-modal Biometric Fusion (Tattoo + Face + Iris + Fingerprint).3. Ephemeral "Ice Key" generation and instantaneous zeroization (< 0.1ms).4. NIST SP 800-90B entropy validation and ML-KEM-1024 / ML-DSA-87 Post-Quantum Cryptography (PQC) integration. * Note: This work is related to Korean Patent Application No. 10-2026-0126992, filed on July 10, 2026.

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Stateless Cryptographic Key Generation using Sub-dermal Pigmentation Entropy and Multi-modal Biometric Fusion

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Abstract

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