Permissioned Distributed Ledger for Secure Interaction Data Access
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Solution Overview
Problem
Current systems for managing and provisioning interaction data across computing environments face challenges in ensuring secure and efficient access, particularly due to variations in data formats and the risk of malicious attacks on programmatic interfaces, which can compromise the integrity and accessibility of interaction data.
Innovation Solution
A permissioned distributed ledger system is established, using a centralized authority to encrypt and manage access permissions, allowing secure recording and querying of interaction data while ensuring only authorized access through a distributed smart contract mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If interaction data is stored in distributed databases across multiple organizations, then data accessibility and sharing efficiency are improved, but security risks and vulnerability to malicious attacks increase
Solution Approach 1:
A permissioned distributed ledger acts as an intermediary between multiple organizations, enabling secure data sharing. The ledger uses encrypted permissioning data and smart contracts to mediate access requests, allowing data to be accessible across organizations while maintaining security through cryptographic verification and authorized access control mechanisms.
2Reliability
If access permissions are centralized for security control, then security management is improved, but system complexity and overhead increase
Solution Approach 1:
Access permissions are segmented into encrypted permissioning data stored in ledger blocks, with each organization holding a portion of the decryption keys. This segmentation allows centralized security control through the ledger while distributing key management responsibilities, reducing the operational complexity for individual organizations.
Solution Approach 2:
The permissioned distributed ledger serves as an intermediary that automates permission verification through smart contracts. This eliminates the need for complex manual permission management systems at each organization, as the ledger automatically enforces access control policies through cryptographic verification.
3Reliability
If data is encrypted for security, then security is improved, but data processing speed and query efficiency deteriorate
Solution Approach 1:
Permissioning data is encrypted in advance using asymmetric cryptography and stored in the ledger blocks before data access requests occur. This preliminary encryption setup allows for efficient query processing, as the system can quickly verify permissions through cryptographic verification without performing complex encryption operations during data access.
Solution Approach 2:
Traditional mechanical permission verification methods are replaced with cryptographic verification mechanisms. The system uses public-key cryptography and digital signatures to verify permissions, which is computationally more efficient than traditional access control methods, especially in distributed environments.
4Reliability
If a permissioned distributed ledger is implemented, then data integrity and access control are improved, but implementation complexity and computational overhead increase
Solution Approach 1:
The permissioned distributed ledger performs multiple functions simultaneously: it stores interaction data, manages access permissions, verifies data integrity through cryptographic hashing, and enforces access control policies. This multi-functionality reduces the need for separate systems for each function, simplifying overall implementation despite the advanced cryptographic mechanisms employed.
Solution Approach 2:
The ledger system is self-managing through automated smart contracts that enforce permissioning rules without requiring manual intervention. The system automatically verifies permissions, controls data access, and maintains integrity checks, reducing operational complexity and implementation burden on participating organizations.
Data Source
AI summary
The disclosed exemplary embodiments include computer-implemented systems, apparatuses, and processes that securely track, manage, and provision elements of interaction data within a computing environment in accordance with encrypted permissioning data recorded onto a permissioned distributed ledger. For example, an apparatus may obtain query data that includes an identifier of a computing system and a query term, and access one or more ledger blocks of a permissioned distributed ledger that include encrypted permissioning data and interaction data. The apparatus may decrypt the encrypted permissioning data using a master cryptographic key of a centralized authority. Based on a portion of the decrypted permissioning data associated with the identifier, the apparatus may determine that a portion of the interaction data is associated with the query term and consistent with an access permission of the computing system, and transmit response data to the computing system that includes the portion of the interaction data.