Quantum Session Authentication via Photon Decoding

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Solution Overview

Problem

Traditional session authentication methods rely on pseudo-random number generation, which are increasingly susceptible to attacks due to advances in computing power, making it difficult to generate truly random session keys that cannot be replicated by malicious attackers.

Innovation Solution

The system employs quantum mechanics by decoding photons using arbitrary quantum bases to introduce true randomness into the session key generation process, ensuring that each session key is unique and unattainable to perpetrators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pseudo-random number generation is used for session key generation, then the system can operate with simple algorithms and fast processing, but the session keys become susceptible to brute force attacks and pattern replication by attackers

Engineering Contradiction:
Improvesession key securityVSAvoidrandomness generation mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical/computational system of pseudo-random number generation with a quantum optical system. Photons are generated and measured in arbitrary quantum bases to produce truly random bits, substituting the algorithmic approach with a fundamental physics-based approach that provides inherent unpredictability resistant to computational attacks.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental parameter of randomness generation from algorithmic computation to quantum measurement outcomes. By using arbitrary quantum bases for photon measurement, the system transforms the nature of randomness from pseudo-random (deterministic but complex) to truly random (indeterministic at the quantum level), thereby improving security while managing complexity through standardized quantum protocols.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If traditional pseudo-random number generation methods are used, then the system maintains simplicity and speed, but computing power advances enable attackers to replicate session keys through brute force attacks

Engineering Contradiction:
Improvesession authentication speedVSAvoidsession key unpredictability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent substitutes the computational pseudo-random generation process with quantum optical measurement processes. Photons are measured in arbitrary quantum bases to generate random bits directly through quantum indeterminacy, replacing algorithmic generation with a physical process that is inherently faster and more secure against computational attacks while maintaining high-speed operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs periodic generation of photon streams and measurement cycles to maintain continuous high-speed session key generation. The quantum random number generator operates in periodic pulses, measuring photons in arbitrary bases at high rates, thereby achieving both speed and security through rhythmic, standardized quantum measurement processes.

Inventive Principle:
Principle #19Periodic action

3Reliability

If quantum bases are used for photon decoding, then true randomness is introduced into session key generation, but the system complexity increases with quantum decoding circuitry and photon generation requirements

Engineering Contradiction:
Improvesession key randomnessVSAvoidquantum decoding system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces photons as an intermediary carrier of quantum information between the random number generation source and the session key generation algorithm. The photons encode random bits through their quantum states (polarization, phase, etc.), serving as a mediator that transports quantum randomness through the system while allowing separation of the quantum generation component from the classical processing components.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the session authentication system into distinct functional modules: a quantum random number generator that produces random bits through photon measurement, a session key generator that processes these bits, and the authentication protocol. This segmentation isolates the complex quantum component to a dedicated module, making the overall system more manageable while maintaining true randomness in the critical key generation function.

Inventive Principle:
Principle #1Segmentation

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

This approach generates session keys with inherent randomness, preventing reproduction by attackers and enhancing the security of session authentication systems.

Implementation Method 1

determine a set of quantum bases to use for measurement; receive a series of photons and decode, based on the determined set of quantum bases, the series of photons to generate a decoded set of bits

Methodology Applied
Scientific EffectQuantum measurement:

Data Source

PatentUS12028449B1Systems and methods for passive quantum session authentication
Publication Date: 2024.07.02 WELLS FARGO BANK NA
  • US12028449B1 patent drawing
  • US12028449B1 patent drawing
  • US12028449B1 patent drawing

AI summary

Systems, apparatuses, methods, and computer program products are disclosed for session authentication. An example method includes determining, by decoding circuitry, a set of quantum bases to use for measurement. The example method further includes receiving, by the decoding circuitry, a series of photons. The example method further includes decoding, by the decoding circuitry and based on the determined set of quantum bases, the series of photons to generate a decoded set of bits. The example method further includes receiving, by the decoding circuitry, a control signal indicative of an instruction to initiate decoding based on the set of quantum bases. The example method further includes, in response to receiving the control signal, decoding, by the decoding circuitry, the series of photons based on the set of quantum bases. The example method further includes generating, by session authentication circuitry, a session key based on the decoded set of bits.