Private Arrival-Time Messaging via Classical Timing

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Solution Overview

Problem

Current quantum cryptography methods face challenges in ensuring message privacy, as leakage becomes apparent only after interception, allowing eavesdroppers to obtain information before it is detected by the sender and receiver.

Innovation Solution

A classical physics-based private messaging system using privately synchronized clocks, where messages are mapped onto time measurements known only to the sender and receiver, ensuring that an eavesdropper cannot determine the message even if they know the arrival time, by maintaining a private space-time domain.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If quantum key distribution is used to encrypt messages, then message privacy is improved, but the system complexity and difficulty of implementation increase

Engineering Contradiction:
Improvemessage privacyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the quantum mechanical system with a classical mechanical timing system. Instead of using quantum entanglement and photon polarization states, the invention uses synchronized clocks and time-of-flight measurements of energy pulses. The message is encoded in the arrival time of pulses relative to a privately known time reference, transforming a quantum problem into a classical timing problem that is simpler to implement while maintaining security through the difficulty of determining private time references from public arrival times.

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

2Reliability

If quantum entanglement is used for key distribution, then complete privacy is achieved, but the requirement for photon storage and rapid processing increases operational difficulty

Engineering Contradiction:
Improvecomplete privacyVSAvoidoperational difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent eliminates the need for quantum operations by substituting them with classical timing measurements. Instead of creating, storing, and measuring entangled photons, the system uses synchronized clocks and measures the arrival time of energy pulses. The private information is embedded in the time reference rather than quantum states, removing all operational difficulties associated with quantum photon management while maintaining the security guarantee that private time references cannot be determined from public arrival times.

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

3Reliability

If the location of receipt is determined to detect leakage, then security monitoring is improved, but the eavesdropper already obtains information before detection

Engineering Contradiction:
Improvesecurity monitoringVSAvoiddetection delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by establishing private time references and synchronized clocks before any message transmission occurs. The security mechanism is built into the timing framework itself rather than being added after transmission. The private time reference acts as a pre-established security key that prevents eavesdropping from the outset, not merely detecting it after the fact. This eliminates the detection delay because the security is proactive rather than reactive.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If quantum particles are used for communication, then information security is improved, but the infrastructure requirements and cost increase

Engineering Contradiction:
Improveinformation securityVSAvoidinfrastructure requirements
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent substitutes expensive quantum infrastructure with simple classical timing infrastructure. Instead of requiring quantum photon sources, detectors, and storage devices, the system uses ordinary clocks, timing circuits, and energy pulse transmitters. The security relies on the computational difficulty of determining private time references from public arrival times, which can be implemented with standard electronic components rather than specialized quantum equipment, dramatically reducing manufacturing complexity and cost.

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

Data Source

PatentUS11671268B2Private, arrival-time messaging
Publication Date: 2023.06.06 UNIVERSITY OF LOUISIANA AT LAFAYETTE

AI summary

This invention provides a secure method for sending data—private, arrival-time messaging. Private, arrival-time messaging is based on classical physics and not quantum mechanics. It insures a private language for communicators with privately-synchronized clocks. In this method, there is no encrypted message available to an eavesdropper. A private message is mapped onto a time measurement known only to an intended sender and an intended receiver such that a third party knowing only the arrival time of the message and not the time measurement can never know the private message.