Biometric Authentication via Local Template Hashing and Blockchain Certification
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Solution Overview
Problem
Conventional biometric authentication systems face challenges in securely transmitting sensitive biometric templates over networks, which can be disrupted by outages, and lack external verification reliability, making it difficult for entities like banks or merchants to trust the verification process.
Innovation Solution
A method involving a computing device that receives a biometric from a user, converts it into a template, hashes it, and transmits the hashed template to a blockchain system for certification, allowing secure storage and verification, enabling secure transactions by matching the template and validating a biometric certification token.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sample biometric template is transmitted to the remote server computer for verification, then the authentication process can be performed, but complex encryption or data security schemes are needed to protect the sensitive information during transmission
Solution Approach 1:
The patent extracts the sensitive biometric template data from the transmission process by implementing local verification. The reference biometric template is stored locally on the access device rather than being transmitted to a remote server, eliminating the need for complex encryption during transmission while maintaining authentication reliability.
2Reliability
If the sample biometric template is transmitted to the remote server computer, then verification can be performed, but network outages or server failures can prevent or delay the transmission
Solution Approach 1:
The patent implements preliminary action by storing the reference biometric template locally on the access device before any verification is needed. This allows the system to perform verification immediately without relying on network connectivity or remote server availability, eliminating the impact of network outages and server failures.
3Object-affected harmful factors
If the reference biometric template is stored on a local device such as a mobile phone, then the authentication process can proceed without network dependency, but external parties cannot rely on the verification since they cannot verify the authenticity of the reference template
Solution Approach 1:
The patent introduces a cryptographic intermediary mechanism where the reference biometric template is cryptographically bound to the access device using device-specific identifiers and cryptographic keys. This cryptographic binding serves as a trusted intermediary that allows external parties to verify the authenticity of the reference template through cryptographic validation without needing to trust the local device directly.
4Object-affected harmful factors
If complex encryption schemes are implemented to protect biometric template transmission, then data security is improved, but the system complexity and processing overhead increase
Solution Approach 1:
The patent extracts the encryption requirement from the system by implementing local storage of the reference biometric template. Since the template never leaves the local device, no transmission encryption is needed, thereby maintaining data security while eliminating the complexity and processing overhead associated with encryption schemes.
Data Source
AI summary
A method for performing biometric authentication is disclosed. In one example, the method includes obtaining first and second biometric templates and comparing them to determine if they match. The method also includes determining if a biometric certification token is valid. A computing device or other device may communicate with a verification system to determine the validity of the biometric certification token.