Physical Unclonable Function Key Generator for Quantum-Resistant Security
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Solution Overview
Problem
Existing cryptography devices and methods are limited in applications and not ready or compliant with ongoing technological developments, necessitating improved cryptography solutions for enhanced network security.
Innovation Solution
A self-sovereign, self-testing, and self-sufficient security system based on cryptography, utilizing a key generator to produce physical unclonable functions (PUFs) deployable on distributed ledger environments like blockchain, ensuring post-quantum readiness through classical algorithms resistant to quantum cryptanalysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing cryptography methods are used, then current network security needs are met, but the system is not ready for quantum cryptanalysis and has limited application scope
Solution Approach 1:
The patent implements a universal cryptography device that can execute multiple cryptographic algorithms (RSA, ECC, hash functions, and post-quantum algorithms) within a single system. This multi-functional architecture allows the device to adapt to different security requirements and future quantum threats without requiring separate dedicated systems for each cryptographic standard.
Solution Approach 2:
The cryptography device employs dynamic algorithm selection and key management capabilities, allowing it to switch between classical and post-quantum cryptographic algorithms based on threat models and application requirements. This dynamic adaptability ensures the system remains secure against evolving threats including quantum cryptanalysis.
2Ease of manufacture
If classical cryptographic algorithms are used, then current security standards are satisfied, but they become vulnerable to quantum computing attacks
Solution Approach 1:
The patent incorporates post-quantum cryptographic algorithms in advance within the cryptography device, preparing the system against future quantum threats before they materialize. This preliminary integration of quantum-resistant algorithms ensures the device can immediately respond to quantum computing capabilities when they become practical, without requiring urgent system overhauls.
3Reliability
If cryptography devices are designed for specific applications, then they meet particular security needs, but they lack flexibility for emerging technologies
Solution Approach 1:
The cryptography device is designed as a universal platform that can serve multiple applications including IoT devices, blockchain systems, cloud computing, and emerging technologies. It supports various cryptographic standards and can be configured for different security requirements, ensuring both effective security implementation and adaptability to new technological developments.
Data Source
AI summary
A cryptography system comprising a first node having a unique identifier generator configured to generate at least one physical unclonable function (PUF); and a second node configured to remotely send an attestation request to the first node is disclosed. In some embodiments, the cryptography system may form at least part of a distributed ledger and the PUF is configured to respond to the attestation request.