Portable Authentication Device Certificate Verification
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Solution Overview
Problem
Current authentication methods, such as passport control and access control, require excessive personnel and disclose unnecessary personal data, and often do not differentiate between security levels, leading to inefficiencies and privacy concerns.
Innovation Solution
A method where a portable device communicates with a control device to request and verify certificates, determining if the control device is authorized to request authentication, and only authenticates the person if necessary based on security requirements, using Public Key Infrastructure (PKI) certificates and biometric data to ensure privacy and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication methods are used (passport control, access control), then authentication can be performed, but excessive personnel are required and personal data is disclosed unnecessarily
Solution Approach 1:
The portable device performs self-authentication by automatically presenting certificates and proving authorization to the control device without requiring manual verification by border guards or security personnel. The device autonomously handles the authentication protocol, including certificate exchange and verification.
Solution Approach 2:
The patent replaces manual mechanical authentication processes (border guards checking passports, security personnel verifying ID cards) with an automated electronic authentication system using cryptographic certificates and secure communication protocols between the portable device and control device.
2Reliability
If traditional authentication methods are used, then authentication can be performed, but unnecessary personal data is disclosed
Solution Approach 1:
The patent extracts only the necessary authentication information from the portable device (certificates proving authorization) while leaving unnecessary personal data (name, address, date of birth) hidden and undisclosed to the control device and border guards.
Solution Approach 2:
The authentication system provides different levels of information disclosure based on the specific authentication context - only the minimal necessary data (authorization certificates) is revealed, while other personal information remains protected, creating a localized quality of information sharing.
3Reliability
If authentication is always required, then security is ensured, but authentication effort is incurred unnecessarily for low-security applications
Solution Approach 1:
The authentication system dynamically adapts its behavior based on security requirements - the portable device can choose to perform full authentication with the person when security demands it, or skip person authentication and only verify device authorization when security requirements are lower, making the authentication process flexible and adaptive.
4Reliability
If the person is always authenticated to the device, then security is ensured, but the process becomes more complex
Solution Approach 1:
The authentication process is segmented into separate components: device authentication (proving the device is authorized) and person authentication (proving the person owns the device). These can be performed independently or together depending on security requirements, reducing overall complexity.
Data Source
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AI summary
The invention relates to a method for authenticating an individual (104), said individual carrying a device (102). Said device comprises at least one interface (118) for communication with a control device. The device carries out the following steps when approaching the control device: receiving a first inquiry (136) from the control device via the first interface, the control device, in a first inquiry, requiring a first certificate (128) from the device for authenticating the individual; transmitting a second inquiry (138) from the device to the control device via the interface, the device requiring, in the second inquiry, a second certificate (132) from the control device; checking the second certificate using the device, the second certificate being used to determine whether the control device is authorized to require the first certificate from the device; transmitting the first certificate to the control device via the interface if the result of the check of the second certificate is that the control device is authorized to do so. The device can receive an authentication request issued by the control device according to which request the individual has to be authenticated vis-à-vis the device. The method also includes a step of authenticating the individual vis-à-vis the device, the first certificate being transmitted to the control device only when the individual is successfully authenticated vis-à-vis the device. The step of authenticating the individual vis-à-vis the device is only carried out if the authentication request has been received by the device. The first certificate is transmitted to the control device without prior authentication of the individual vis-à-vis the device if the authentication request has not been received by the device.