Quantum Physical Unclonable Function Authentication Protocol
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Solution Overview
Problem
Conventional PUF protocols are vulnerable to digital emulation attacks, machine learning attacks, quantum computer attacks, and require secured CRP databases, which are inconvenient for memory-limited devices and depend on trusted devices.
Innovation Solution
A quantum physical unclonable function (QPUF) protocol using quantum entanglement and superposition, where correlation signatures from entangled photons are publicly stored and used for authentication, eliminating the need for private code books and trusted devices, and enabling unconditionally secure authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional PUF protocols use challenge-response pairs stored in secured databases, then device authentication can be performed, but the system becomes vulnerable to digital emulation attacks, machine learning attacks, and quantum computer attacks
Solution Approach 1:
The patent replaces conventional classical PUF protocols with a quantum-based authentication system. Quantum key distribution protocols are used to establish secure channels, and quantum random number generators provide unpredictable challenges. This substitution of quantum mechanisms for classical ones fundamentally changes the security model, making the system resistant to digital emulation, machine learning, and quantum computer attacks that compromise conventional PUF protocols.
2Ease of operation
If conventional PUF protocols store CRP lists in secured databases, then authentication verification is possible, but memory-limited devices become inconvenient and the system depends on trusted devices
Solution Approach 1:
The patent extracts and removes the requirement for large CRP memory storage from the authentication system. By using quantum key distribution to generate and share secret keys between parties, and quantum random number generators to create challenges, the system eliminates the need for storing extensive challenge-response pair databases. This extraction of the memory requirement fundamentally resolves the contradiction between authentication capability and memory constraints.
3Adaptability or versatility
If quantum-readout PUF protocol is used for remote device verification, then independence from secret databases is achieved, but the protocol is not secured against quantum emulation attacks and requires large CRP memory
Solution Approach 1:
The patent applies preliminary action by pre-establishing quantum-secure communication channels using quantum key distribution protocols before the actual authentication process. Secret keys are generated and shared in advance through quantum-mechanically secure means, and quantum random number generators are configured to produce challenges. This preliminary quantum setup ensures that subsequent authentication is inherently resistant to quantum emulation attacks without requiring large CRP memory storage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The QPUF protocol provides unconditionally secure device authentication immune to digital emulation, machine learning, and quantum computer attacks, ensuring security without relying on trusted devices or large CRP memory, and allows for simultaneous secure communication.
Implementation Method 1
A quantum physical unclonable function (QPUF) protocol using quantum entanglement and superposition, where correlation signatures from entangled photons are publicly stored and used for authentication
Implementation Method 2
A quantum physical unclonable function (QPUF) protocol using quantum entanglement and superposition, where correlation signatures from entangled photons are publicly stored and used for authentication
Data Source
AI summary
A method for authentication between multiple communication parties is disclosed. Authentication can be carried out by the means of each communication party having a device having a physical unclonable function. To make this possible, the devices have a known quantum correlation that can be used in conjunction with entangled photons to verify the identities of the devices.