Decentralized Identifier Credentials for Secure Data Exchange
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Solution Overview
Problem
Centralized identity management systems for exchanging confidential information are vulnerable to fraud, data exposure, and unauthorized access, making it difficult to maintain data privacy and trace unauthorized access.
Innovation Solution
A system utilizing a blockchain and smart contracts to manage authorization requests and verifiable credentials with embedded decentralized identifiers, enabling secure and decentralized exchange of confidential information without the need for centralized credentials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If centralized identity management systems are used to exchange confidential information, then information exchange is facilitated, but security vulnerabilities and data exposure risks increase
Solution Approach 1:
The patent introduces a blockchain network as an intermediary layer between entities exchanging confidential information. The blockchain stores verifiable credentials and decentralized identifiers (DIDs) that enable secure verification without centralized control. Smart contracts act as automated intermediaries that enforce access policies and manage credential verification, eliminating the need for trusted centralized authorities while maintaining security.
Solution Approach 2:
The system segments identity management into decentralized components: DIDs for unique entity identification, verifiable credentials for attribute verification, and blockchain storage for immutable record-keeping. This segmentation distributes trust across multiple independent elements rather than relying on a single centralized authority, reducing security risks associated with centralized systems.
2Ease of operation
If centralized credentials are used for access control, then authorization is simplified, but fraud and unauthorized access risks increase
Solution Approach 1:
The patent replaces traditional mechanical centralized credential systems with cryptographic mechanisms. Verifiable credentials use digital signatures and public-key cryptography to provide tamper-evident authorization. The blockchain's consensus mechanism substitutes centralized credential issuance and validation, making fraud detection and prevention inherent to the system architecture rather than relying on centralized monitoring.
Solution Approach 2:
The system implements feedback through the blockchain's immutable ledger that permanently records all credential issuances, presentations, and verifications. This creates an auditable trail that provides real-time feedback on authorization events, enabling detection of fraudulent activities and unauthorized access attempts while maintaining simplified authorization through cryptographic verification.
3Reliability
If decentralized identifiers and verifiable credentials are used, then security and data privacy are improved, but system complexity increases
Solution Approach 1:
The patent employs universal standards for DIDs and verifiable credentials that can be applied across multiple applications and domains. The blockchain infrastructure provides a universal platform for storing and verifying credentials, eliminating the need for application-specific credential management systems. This universality reduces complexity by providing a standardized framework that can be reused rather than building custom solutions for each use case.
4Reliability
If blockchain technology is implemented for credential verification, then fraud prevention is enhanced, but processing time and computational requirements increase
Solution Approach 1:
The system performs preliminary actions by pre-issuing verifiable credentials with embedded cryptographic proofs of authenticity. These credentials are signed by trusted issuers and stored on the blockchain in advance, so verification requires only checking the cryptographic signatures rather than querying the issuer in real-time. This preliminary credential issuance reduces verification time while maintaining strong fraud prevention through cryptographic validation.
Data Source
AI summary
Systems and methods for securely accessing information pertaining to an upstream entity using a verifiable credential with an embedded distributed identifier includes generating an authorization request for access to the information by a downstream entity. The authorization request includes a decentralized identifier associated with the downstream entity and is transmitted to a content storage entity. An authorization notification corresponding to the authorization request is received. An authorization token is retrieved. The authorization token includes a verifiable credential generated by the upstream entity and incorporating the decentralized identifier. A request transaction including a request to access the information pertaining to the upstream entity and the authorization token is generated and transmitted to the content storage entity. A verification challenge corresponding to the request transaction based on the verifiable credential is received and a response is transmitted. A reply transaction is received granting access to the information pertaining to the upstream entity.