Private-Key Keystore Credentials for Decentralized Access Control

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Solution Overview

Problem

Centralized identity and access management systems are inefficient and vulnerable to breaches, particularly when mobile devices are shared or used by a diverse workforce, and there is a need for secure, decentralized credentialing and access control that does not rely on insecure communication channels.

Innovation Solution

Implementing self-sovereign credentials on uniquely identifiable devices, using locally stored private keys and decentralized networks, enabling secure access delegation and revocation without exposing private keys to the cloud, and utilizing decentralized identity communication protocols for authentication and credential management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If centralized identity and access management systems are used, then access control can be managed centrally, but the system becomes vulnerable to data breaches and inefficient for diverse workforces

Engineering Contradiction:

ImprovesecurityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the centralized identity management system into decentralized credential stores on individual devices. Each user's credentials are stored locally in a keystore rather than on a centralized server, eliminating the single point of failure while maintaining access control capabilities through distributed verification.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a decentralized verification system that acts as an intermediary between credential issuance and access validation. Instead of a centralized authority, the system uses cryptographic verification and blockchain-based ledgers to mediate access control, reducing system complexity while enhancing security.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If private keys are stored on provisioned devices, then secure decentralized authentication is enabled, but device provisioning and key management complexity increases

Engineering Contradiction:

Improveauthentication securityVSAvoiddevice provisioning

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent implements preliminary device provisioning where devices are pre-configured with keystores and authentication capabilities before being deployed to users. This setup occurs during device manufacturing or initial deployment, eliminating the need for complex key management during ongoing operations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system enables self-service authentication where users can independently prove their identity using credentials stored on their devices without requiring manual intervention from administrators. The decentralized verification system automatically validates credentials, reducing provisioning complexity for ongoing access management.

Inventive Principle:

Principle #25Self-service

3Reliability

If decentralized credentialing is implemented, then data breach risk is reduced, but access management efficiency may decrease

Engineering Contradiction:

Improvebreach preventionVSAvoidaccess management efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent replaces manual access management processes with automated cryptographic verification. Instead of administrators manually reviewing and approving access requests, the system uses cryptographic proofs and blockchain verification to automatically determine and enforce access rights, maintaining efficiency while preventing breaches.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system implements real-time feedback mechanisms where credential verification results are immediately reflected in access control decisions. The decentralized verification system provides instant feedback on credential validity, enabling efficient access management through automated responses to authentication requests.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20260025271A1Management of recipient credentials leveraging private keys on keystores read by provisioned devices

Publication Date: 2026.01.22 LEDGERDOMAIN INC

AI summary

The disclosed technology teaches a method for managing user access to one of a set of decentralized networked nodes that share a private permissioned blockchain data structure or a decentralized personal ledger, to which access has been limited to users authorized by one of the set of decentralized networked nodes.