RFID Reader Cryptographic Protocol Intermediary for Secure Data Access
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Solution Overview
Problem
Existing security documents with RFID functionality face challenges in protecting personal data from unauthorized reading while ensuring secure access for legitimate users, particularly in balancing data protection and accessibility requirements.
Innovation Solution
A reading device with cryptographic protocols is implemented, requiring external read access to data objects stored in documents, using a first interface for communication and a second interface to execute cryptographic algorithms with a cryptographic component, ensuring secure key management and trustworthiness without storing secret keys in the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If RFID interface is implemented in security documents for wireless data access, then convenience of data retrieval is improved, but unauthorized reading risk increases
Solution Approach 1:
A cryptographic component acts as an intermediary between the RFID interface and the data memory. This mediator verifies authentication credentials and controls data access, allowing convenient wireless access for authorized users while blocking unauthorized reading attempts without affecting the RFID interface's ease of operation.
Solution Approach 2:
The system performs preliminary authentication verification through cryptographic protocols before allowing any data access. This preemptive security measure prevents unauthorized reading by verifying credentials in advance, while maintaining convenient access for authenticated users through the same RFID interface.
2Reliability
If cryptographic protocols are implemented for data protection, then data security is improved, but device complexity increases
Solution Approach 1:
The system segments cryptographic functionality into a separate, dedicated cryptographic component rather than integrating it throughout the entire document system. This modular approach provides strong data security through cryptographic protocols while containing complexity within a discrete unit that can be managed independently.
Solution Approach 2:
The cryptographic component serves as an intermediary layer that handles all cryptographic operations. This mediator absorbs the complexity of cryptographic protocol implementation, shielding the rest of the system from complexity while maintaining high data security through standardized cryptographic mechanisms.
3Ease of operation
If secret keys are stored in the reading device for authentication, then authentication capability is improved, but security risk increases
Solution Approach 1:
The secret key is extracted from the reading device and stored exclusively in the secure element of the document. This separation allows the reading device to maintain authentication capability through cryptographic verification without holding the secret key, eliminating the security risk of key compromise in the reading device while preserving authentication functionality.
Data Source
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AI summary
Reader for a document (101) having a data store (103) for storing at least one data object (104), where external read access to the data object presupposes the implementation of a cryptographic protocol, having: a first interface (142') for external read access to the data object, means (124') for implementing the cryptographic protocol, a second interface (154) for requesting (170) implementation of a cryptographic algorithm (168) and for receiving (172) a result for the implementation of the cryptographic algorithm, where the means for implementing the cryptographic protocol are designed to generate the request and to use the result for implementing the cryptographic protocol.