Blockchain Alias Directory Secure Gateway

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Solution Overview

Problem

Current systems for managing aliases are inefficient as they require multiple communications to determine information associated with an alias, and they compromise data security by commingling sensitive information across different entities.

Innovation Solution

A blockchain-based alias directory system that uses a secure gateway to receive requests, retrieve and decrypt encrypted lists of aliases, and transmit access data, reducing the number of communications needed while maintaining data security by isolating sensitive information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a central database commingles payment account information and aliases from many entities, then information accessibility is improved, but data security and privacy are compromised

Engineering Contradiction:

Improveinformation accessibilityVSAvoiddata security

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system segments alias data by storing it in distributed databases operated by different entities (banks, payment processors) rather than centralizing it. Each entity maintains control over its own alias data, preventing unauthorized access while still enabling global accessibility through coordinated queries across multiple databases.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system introduces an intermediary mechanism (the alias resolution process) that coordinates between multiple distributed databases without requiring a central repository. The intermediary resolves aliases by querying relevant entities while maintaining data privacy through controlled information disclosure.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If a third party contacts each alias database to obtain alias information, then complete information retrieval is achieved, but communication efficiency deteriorates

Engineering Contradiction:

Improveinformation retrieval completenessVSAvoidcommunication efficiency

Core Design Contradiction:

Loss of informationVSProductivity

Solution Approach 1:

The system performs preliminary actions by pre-establishing alias resolutions and caching results in the blockchain. When an alias needs to be resolved, the system checks the blockchain first for existing resolutions, avoiding redundant communications with multiple databases and significantly improving efficiency for repeated queries.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system creates copies of alias resolution data and stores them in the blockchain distributed ledger. Instead of querying each original database for every request, the system uses copied resolution data from the blockchain, reducing communication overhead while maintaining information completeness.

Inventive Principle:

Principle #26Copying

Data Source

PatentUS11876911B2Blockchain based alias interaction processing

Publication Date: 2024.01.16 VISA INTERNATIONAL SERVICE ASSOCIATION

AI summary

A blockchain based alias directory may be utilized. Encrypted lists of aliases may be stored on the blockchain and may be accessible to network computers and secure gateways. Embodiments are directed to secure gateways and user devices for accessing the alias directory stored in the blockchain during a financial transaction. The user device may be provided with a list of aliases from which a user may select a payment account. Upon selection the user may be redirected to an identity verification system of the associated payment network.