Cryptographic Authorization Chain Remediation for Expired Credentials

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Solution Overview

Problem

Existing systems face challenges in managing permissions issues when cryptographic credentials expire or are revoked in durably credentialed systems, leading to invalidations of previously authorized work declarations.

Innovation Solution

Implementing a system where a control plane node or initiating device searches for and remediates expired or revoked cryptographic chains by identifying substitute authorization paths, using a comprehensive cache to update permissions and maintain valid declarations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cryptographic credentials are used for durable authorization, then system security and authorization validity are improved, but permission management complexity increases when credentials expire or are revoked

Engineering Contradiction:

Improveauthorization validityVSAvoidpermission management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by caching cryptographic chains of authorization before they expire. When a credential is about to expire or has been revoked, the system has already prepared substitute cryptographic chains in the cache, allowing seamless replacement without interrupting the authorized work. This preliminary preparation resolves the contradiction by maintaining authorization validity while simplifying permission management through pre-computed replacements.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The control plane node acts as an intermediary that manages the complexity of credential validation and substitution. It receives requests for work, validates cryptographic chains, and automatically provides substitute chains when credentials expire or are revoked. This intermediary layer shields the endpoint from permission management complexity while ensuring continuous authorization validity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If cryptographic chains are validated strictly, then system security is improved, but work continuity deteriorates when credentials expire

Engineering Contradiction:

Improvesystem securityVSAvoidwork continuity

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The system ensures continuity of useful action by maintaining a cache of substitute cryptographic chains that can immediately replace expired or revoked credentials. When strict validation detects an expired credential, the system continuously provides an alternative valid chain from the cache, allowing the authorized work to continue without interruption. This resolves the contradiction by maintaining both strict security validation and uninterrupted work continuity through prepared substitutes.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The system applies beforehand cushioning by pre-storing multiple valid cryptographic chains in the cache before any credential expires. This cushion of pre-prepared alternatives protects the system against the harmful effect of credential expiration, ensuring that strict security validation never blocks continuous work execution because valid substitute chains are already in place.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Measurement precision

If manual intervention is required for permission updates, then authorization accuracy is improved, but system efficiency deteriorates

Engineering Contradiction:

Improveauthorization accuracyVSAvoidsystem efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The system implements self-service by automatically managing the entire process of detecting expired credentials, retrieving substitute cryptographic chains from the cache, and updating the authorization state. The control plane node autonomously performs these tasks without requiring manual intervention, thereby maintaining high authorization accuracy through systematic validation while achieving high system efficiency through automation. This resolves the contradiction by eliminating the trade-off between accuracy and efficiency.

Inventive Principle:

Principle #25Self-service

4Speed

If cryptographic chains are cached extensively, then permission remediation speed is improved, but memory resource consumption increases

Engineering Contradiction:

Improvepermission remediation speedVSAvoidmemory resource consumption

Core Design Contradiction:

SpeedVSQuantity of substance

Solution Approach 1:

The system applies taking out by extracting only the essential cryptographic chain data needed for validation and substitution into the cache, rather than storing complete credential sets. The cached data includes the critical authorization information required for rapid remediation while minimizing redundant storage. This selective extraction maintains fast permission remediation speed while reducing memory resource consumption by storing only the necessary subset of cryptographic data.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS20260081791A1Computing systems and methods for remediating permissions issues in durably credentialed systems

Publication Date: 2026.03.19 DELL PROD LP

AI summary

Systems and methods and computer program products support remediating a cryptographic chain of authorization. For instance, an item of work may be performed under the authority of a node, which itself was delegated authority by another node or a root of authority. In an instance in which the item of work is long-standing, and in which a link in the cryptographic chain of authorization may have expired or been revoked, a technique may include using previously-stored certificates to generate a substitute cryptographic chain of authorization to allow the work.