Blockchain Identity Verification With Hashed PII and Trust Scoring
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Solution Overview
Problem
Existing identity authentication systems compromise user privacy by storing and using sensitive personal information, which can be misused or exposed, and there is a need for strong authentication to prevent fraud and theft while preserving privacy.
Innovation Solution
A blockchain-based identity service that anonymizes personally identifiable information (PII) using one-way hash functions, ensuring PII is never stored persistently, even in encrypted form, and uses a distributed C3N score for trust verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional identity authentication systems store sensitive personal information to verify identity, then authentication reliability is improved, but user privacy is compromised and data security risk increases
Solution Approach 1:
The patent extracts only the essential authentication information (hashed identifier) from the full PII dataset, separating the verification function from the storage of sensitive data. The system stores only the hash of the identifier rather than the actual PII, eliminating the harmful storage of sensitive information while maintaining authentication capability.
Solution Approach 2:
The patent introduces a hash function as an intermediary between the user's PII and the stored identifier. This intermediary transforms the sensitive data into a non-reversible format that can be stored and compared without exposing the original PII, thus mediating between authentication needs and privacy protection.
2Reliability
If service providers store and retain sensitive data for authentication purposes, then identity verification capability is improved, but loss of user control over personal information occurs
Solution Approach 1:
The patent extracts only the minimal necessary information (hashed identifier) for verification purposes, removing the need for service providers to store and control full PII datasets. Users retain control over their original data while the system maintains verification capability through the extracted hash values.
Solution Approach 2:
The patent creates a copy of the identifier in hashed form for storage and verification purposes, rather than storing the original PII. This copy allows authentication operations to proceed without the service provider having access to or control over the user's original sensitive information.
3Object-affected harmful factors
If encrypted storage is used to protect sensitive data, then data security is improved, but the burden of key management increases and security risks remain
Solution Approach 1:
The patent extracts the encryption/key management complexity from the system by using irreversible hashing instead of reversible encryption. Since hashes cannot be decrypted, there is no need to manage encryption keys, eliminating the key management burden while maintaining security through the one-way nature of the hash function.
Solution Approach 2:
The patent uses hash functions that are computationally inexpensive and irreversible, replacing complex encryption schemes that require key management. The hash values serve as disposable identifiers that provide security without the ongoing operational complexity of key generation, storage, and rotation.
Data Source
AI summary
Systems and methods relating to an identity service and blockchain. An individual's sensitive data is anonymized using a one-way function. The anonymized sensitive data can be stored on a. blockchain and validated by an identity service without comn-promising the privacy of the individual's data. The authentication systems and methods that both (i) provide strong authentication of the identity of online personalities to prevent fraud, theft, scalping, etc. and (ii) respect the privacy of the individual's sensitive personal information.