Federated PII Mapping for Permissioned Trading History Access
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Solution Overview
Problem
Existing trading systems lack efficient methods to map personally identifiable information (PII) from broker-dealer databases onto anonymized data from public distributed ledgers, compromising privacy and security while hindering access to comprehensive trading histories.
Innovation Solution
A federated PII service system that integrates broker-dealer databases with distributed ledgers, allowing permission-based mapping of PII onto public transaction data, using a PII mapping module to connect users with relevant databases and ledgers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If PII is stored in broker-dealer databases for trading history, then comprehensive trading information is available, but privacy and security are compromised
Solution Approach 1:
The patent introduces a federated PII service as an intermediary layer between users and broker-dealer databases. This service includes a PII mapping module that mediates access to PII by mapping anonymized distributed ledger data to relevant PII in broker databases, allowing users to obtain trading history without direct access to raw PII, thus resolving the contradiction between information availability and privacy protection
Solution Approach 2:
The system segments the trading information system into separate components: distributed ledgers storing anonymized transaction data, broker-dealer databases storing PII, and a federated PII service that coordinates between them. This segmentation allows each component to serve its specific function while maintaining security boundaries, enabling comprehensive trading history access without compromising overall system security
2Object-affected harmful factors
If distributed ledgers store anonymized trading data, then privacy is protected, but access to comprehensive trading histories is hindered
Solution Approach 1:
The federated PII service performs multiple functions: it receives requests from users, determines which broker-dealer databases contain relevant PII, receives permission information, and maps anonymized distributed ledger data to PII. This multi-functional service enables the system to maintain privacy while simultaneously providing comprehensive trading history access through intelligent data correlation
3Reliability
If permission-based access control is implemented, then security is improved, but system complexity increases
Solution Approach 1:
The system implements self-service permission verification where the federated PII service automatically determines which broker-dealer databases contain relevant PII and retrieves permission information without requiring manual intervention. The service autonomously coordinates between multiple databases and distributed ledgers, reducing operational complexity while maintaining security through automated permission checks
Data Source
AI summary
A system comprises: first, second, third computing device(s) and distributed ledger(s). Third computing device(s) store PII for accounts. First computing device(s) receive request to obtain PII regarding public information for first account from first user of second computing device(s). First computing device(s) determine that the third computing device(s) includes PII regarding public information for first account. First computing device(s) determine whether first user has permission to obtain PII regarding public information for first account from third computing device(s) that includes PII regarding public information for first account. First computing device(s) receive public information for first account from distributed ledger(s) when first user has permission to obtain PII regarding public information for first account from third computing device(s) that includes PII regarding public information for first account. First computing device(s) provide PII regarding public information for first account to first user of second computing device(s).