Fingerprint Authentication Card with Live Person Detection
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Solution Overview
Problem
Existing card-based authentication systems, such as payment and identification systems, lack assurance of the card owner's presence, being vulnerable to theft, cloning, and other security threats, as they rely on PINs and do not guarantee the user's identity.
Innovation Solution
Integration of a fingerprint reader and processing element within the card to authenticate the user by comparing their fingerprint to a stored owner fingerprint, using capacitive sensors and a photoplethysmogram device to ensure the fingerprint is from a live person, enhancing security beyond traditional PIN-based systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional PIN-based authentication is used, then the system is simple to operate, but it cannot ensure the presence of the card owner and is vulnerable to theft and cloning
Solution Approach 1:
The patent combines multiple authentication factors (fingerprint biometric data, card presence detection, and service provider verification) into a single integrated authentication system. The fingerprint reader, processing element, and authenticating element work together to provide multi-factor authentication that ensures card owner presence while maintaining operational simplicity for the user.
Solution Approach 2:
The card system performs multiple functions: it serves as a payment card, a biometric authentication device, and a security verification tool. The fingerprint reader can authenticate both the presence of the card and the identity of the owner, while the system works with various service providers, making it a universal multi-functional authentication solution.
2Ease of manufacture
If magnetic strip cards with PIN are used, then the system is easy to implement, but the cards can be cloned at low cost and PINs can be obtained through tampering
Solution Approach 1:
The patent replaces the magnetic strip mechanical system with a fingerprint-based biometric authentication system. Instead of relying on magnetic data that can be copied, the system uses unique physiological fingerprint characteristics that cannot be replicated, thereby eliminating cloning vulnerabilities while maintaining ease of card manufacturing.
Solution Approach 2:
The authentication mechanism changes from verifying a PIN (a secret parameter) to verifying fingerprint characteristics (a physiological parameter). This parameter change from knowledge-based authentication to biometric authentication makes the system resistant to PIN theft and card cloning, as fingerprints cannot be obtained through tampering or social engineering.
3Object-affected harmful factors
If chip and pin cards are used, then security is improved against cloning, but the card can still be stolen with knowledge of the PIN and requires a keypad
Solution Approach 1:
The patent extracts the PIN entry requirement from the authentication process and replaces it with fingerprint recognition. The fingerprint reader directly captures and verifies biometric data, eliminating the need for a keypad and PIN entry, thereby improving operational convenience while maintaining security against cloning through chip technology.
Solution Approach 2:
The system uses the user's own fingerprint as the authentication key, eliminating the need for external keypads or PIN memorization. The fingerprint reader on the card itself performs the authentication, making the system self-sufficient and more convenient to operate while maintaining high security standards.
4Productivity
If contact-less smart cards are used, then operation speed is improved, but PIN entry is not practical due to insufficient time
Solution Approach 1:
The patent replaces the manual PIN entry process with automated fingerprint recognition. The fingerprint reader captures and processes biometric data in seconds, enabling contact-less or quick-contact transactions that maintain high speed while eliminating the impracticality of PIN entry in fast transactions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a higher level of security by ensuring the card is only authenticated with the service provider if the user is the actual owner, preventing unauthorized use and reducing the risk of theft, while also being applicable to both contact and contactless transactions.
Implementation Method 1
The fingerprint reader comprises an array of conductive elements that form capacitors when in contact with skin of the user to generate an array of capacitances
Implementation Method 2
a photoplethysmogram device to detect blood flow in the finger
Data Source
AI summary
A card, such as a credit or identification card, including an authenticating element for authenticating the card with a service provider, a fingerprint reader integral with the card for reading a fingerprint provided by a user of the card, and a processing element for comparing the fingerprint provided by the user to a fingerprint of an owner of the card to confirm that the user is the owner. In one variation, there is also provided a means for determining whether an object presented to the fingerprint reader is a finger of the user presenting the card.