Cryptographic Fair Access for Shared Electronic Resources

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Solution Overview

Problem

Existing resource-sharing systems in electronic devices often favor devices with close physical proximity to the resource, leading to unfair access and potential collusion between the resource owner and participant devices, without providing proof of fair handling.

Innovation Solution

A resource-sharing system with cryptographically enforced fair access, where a coordinator announces transaction rounds, accessors commit their requests cryptographically, and a randomized sequence is used to ensure fair access, providing proof of fairness to all participants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If signal propagation time is artificially increased to reduce proximity advantage, then fairness between distant devices is improved, but overall access speed decreases

Engineering Contradiction:
Improvefairness of accessVSAvoidaccess speed
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

A coordinator device is introduced as an intermediary between participant devices and the shared resource. The coordinator collects requests from all participants, determines access order using a provably fair algorithm (such as hashing device identifiers), and manages resource allocation. This intermediary eliminates the need for artificial signal delay while ensuring fairness, as the coordinator centrally processes all requests without being influenced by physical proximity to the resource.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the physical signal propagation mechanism (which inherently favors nearby devices) with a cryptographic/digital mechanism. Instead of relying on signal timing, the system uses hashing algorithms and digital identifiers to determine access order. This substitution eliminates the physical constraint of signal speed while maintaining fairness through mathematical determinism.

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

2Productivity

If proximity-based access is used to maintain fast access speed, then access efficiency is improved, but fairness and trust between participants deteriorates

Engineering Contradiction:
Improveaccess efficiencyVSAvoidfairness and trust
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system implements feedback mechanisms where the coordinator provides proof of fair handling to all participants. After determining access order using a fair algorithm, the coordinator communicates the determined sequence back to all participants, allowing them to verify fairness. This feedback loop builds trust while maintaining efficient resource allocation, as participants can confirm the system is operating fairly without needing to rely on proximity.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The coordinator acts as a trusted intermediary that implements the fair access algorithm and provides verifiable proof to all participants. This intermediary enables efficient resource sharing while ensuring fairness, as it centrally manages access decisions without being influenced by physical proximity, and provides transparency through provable fairness mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If artificial signal delay is applied to certain devices, then proximity advantage is reduced, but the solution is not easily configurable and does not prevent collusion

Engineering Contradiction:
Improveresistance to collusionVSAvoidconfiguration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex artificial signal delay mechanisms with a simple cryptographic hashing approach. Instead of configuring variable delays for different devices, the system uses a deterministic algorithm that hashes device identifiers to determine access order. This substitution dramatically simplifies configuration (no manual delay settings needed) while providing stronger anti-collusion properties, as the fair algorithm is transparent and verifiable by all participants.

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

Solution Approach 2:

The system enables self-service fairness determination where each device independently computes its expected access order using the published fair algorithm and its own identifier. Devices can verify their position in the access queue without requiring complex centralized configuration. This self-service approach eliminates configuration complexity while maintaining resistance to collusion, as the algorithm is open and verifiable.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12289248B2Resource-sharing system with cryptographically enforced fair access
Publication Date: 2025.04.29 SOFTIRON
  • US12289248B2 patent drawing
  • US12289248B2 patent drawing
  • US12289248B2 patent drawing

AI summary

An article of manufacture includes instructions that, when loaded and executed by a processor, configure the processor to, at a coordinator electronic device, initiate a round of electronic device resource requests from a plurality of electronic devices, receive a request for an electronic device resource from each of the electronic devices, provide a fair access scheme for access to the electronic device resource for each of the electronic devices, and provide a proof to each of the electronic devices that the fair access scheme was used in providing access to the electronic device during the round.