Smart Card Biometric Authentication Internal Processing
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Solution Overview
Problem
Current smart cards, despite incorporating biometric features, can still be counterfeited due to issues with unauthorized access and data privacy, as they rely on precise finger positioning and external storage of sensitive biometric data.
Innovation Solution
A smart card design featuring a fingerprint scanner integrated with a CPU and internal memory, allowing secure biometric data generation and comparison internally, combined with DNA analysis, ensuring secure identification and preventing counterfeiting by using a dual microprocessor system and epoxy resin coating for protection, with power autonomy and a flexible, thin form factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If biometric features are added to smart cards, then identification capability is improved, but vulnerability to counterfeiting increases due to unauthorized access and external data storage
Solution Approach 1:
The patent extracts the biometric data processing function from external systems and embeds it directly into the smart card's internal memory and microprocessor. This extraction of the critical authentication function from external storage to internal secure storage eliminates the vulnerability to external hacking and counterfeiting, while maintaining the improved identification capability provided by biometric features.
Solution Approach 2:
The patent implements a nested structure where the biometric sensor, microprocessor, and secure memory are integrated within the smart card substrate. The biometric data is captured, processed, and stored in a nested hierarchy of secure environments within the card itself, creating multiple layers of protection against counterfeiting while enabling reliable biometric identification.
2Reliability
If fingerprint scanning is implemented, then user verification is improved, but operational complexity increases due to precise finger positioning requirements
Solution Approach 1:
The patent implements a dynamic fingerprint scanning system where the sensor can detect and track the user's finger position automatically. The system adapts to the user's natural placement variations by dynamically adjusting the scanning area and focus, maintaining reliable user verification without requiring precise manual positioning, thus improving ease of operation while preserving verification reliability.
3Loss of information
If internal memory processing is used, then data privacy is improved, but device complexity increases
Solution Approach 1:
The patent merges the memory storage, processing unit, and biometric sensor into a single integrated smart card architecture. By combining these functions into one unified device with internal processing capability, the system achieves improved data privacy through secure internal handling of biometric information, while the integration actually reduces overall device complexity compared to separate external components.
Data Source
AI summary
A method for producing a secure personal card and its working process using an intelligent card, the card has electric contacts, a CPU with at least data memory of the user and a biometric data receptor of the user. The biometric data stored in the card is used to make a comparison with biometric data received at the moment of use. Once the card is activated, generating an absolute identification of the biometric data of the authorized user, said biometric data being stored in an unreadable memory, generating and storing the personal data of the user and his/her access code, said biometric data being compared with the current read data of the actual user, in order to verify the identity of the user, then verification and identification of said personal data and access code being allowed in order to continue regular working operation.