Blockchain Identity Verification via Cryptographic Tokenization
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Solution Overview
Problem
Existing decentralized computer platforms, such as blockchain, struggle to balance user privacy with the need for verifiable identity data sharing, as they often lack mechanisms for secure, controlled sharing of identity information.
Innovation Solution
A computer-implemented system for identity verification that includes a data verifier to validate user identification data, a data tokenizer to generate and store a token based on the user identification data on a blockchain, and a data accessor to manage requests for the user identification data, ensuring secure and controlled sharing through encryption and multifactor authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user identification data is stored on a decentralized platform, then verifiable identity data sharing is enabled, but user privacy and security are compromised
Solution Approach 1:
The patent extracts the identification data from the decentralized storage system and replaces it with cryptographic tokens. The actual PII (personally identifiable information) is never stored on the blockchain; instead, only tokenized representations are stored, which can verify identity without exposing sensitive data. This resolves the contradiction by enabling verification while removing the harmful exposure of private data.
Solution Approach 2:
The patent introduces cryptographic tokens as an intermediary between the user's identity and the verification system. These tokens act as mediators that prove identity authenticity without directly exposing the underlying sensitive information. The tokens enable third-party verification while maintaining a privacy barrier, thus resolving the trust-privacy contradiction.
2Ease of operation
If identity data is shared on a decentralized platform, then data accessibility is improved, but control over data sharing is lost
Solution Approach 1:
The patent implements preliminary action by requiring users to pre-configure their sharing preferences and generate cryptographic tokens before any data access occurs. Users set up their identity verification parameters in advance, specifying what can be shared and with whom. This preliminary configuration enables easy accessibility while maintaining control, as the system automatically enforces these pre-set rules without requiring complex real-time negotiations.
3Object-affected harmful factors
If cryptographic tokens are used to represent identity data, then privacy is protected, but verification complexity increases
Solution Approach 1:
The patent creates a universal token system that serves multiple functions: it protects privacy by obscuring underlying data, enables verification through cryptographic proof, and can be universally applied across different verification scenarios. The same token mechanism works for various types of identity verification without requiring separate systems, thus reducing overall complexity despite the cryptographic operations involved.
Data Source
AI summary
A computer-implemented system and method for identity verification is described. The system includes a data verifier configured to validate user identification data associated with a user; a data tokenizer configured to generate a token based on the user identification data and store the token on a blockchain; and a data accessor configured to receive a request from a requestor user for the user identification data and return the token associated with the user identification data to the requestor user following grant of the request by the user.