Document Integrated Display Device Security
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Solution Overview
Problem
Existing security and value documents with RFID functionality can be unauthorizedly accessed, lacking effective protection mechanisms against data reading, which compromises the privacy and authenticity of the information they contain.
Innovation Solution
Incorporating an integrated display device with a non-standard activation sequence of its display elements, which deviates from the spatial arrangement, and a cryptographic protocol to ensure secure data access, making it difficult for counterfeiters to reproduce the document and allowing only authorized reading devices to verify the document's authenticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If RFID interface is integrated into the document, then wireless communication functionality is improved, but unauthorized access and data reading become easier
Solution Approach 1:
The patent applies preliminary anti-action by implementing access control mechanisms before unauthorized reading can occur. The system requires authentication credentials and cryptographic protocols to be satisfied before any data can be read from the RFID interface, thereby preventing unauthorized access in advance rather than reacting after compromise occurs.
Solution Approach 2:
The patent introduces an intermediary layer of security between the RFID interface and the stored data. This intermediary consists of authentication mechanisms and access control protocols that must be successfully completed before the RFID interface can access or transmit data, thereby mediating the interaction and preventing direct unauthorized access.
2Ease of manufacture
If display device with standard activation sequence is used, then manufacturing simplicity is improved, but security against forgery and unauthorized reading is reduced
Solution Approach 1:
The patent applies asymmetry by using a non-standard, asymmetric activation sequence for the display elements that cannot be predicted or replicated by counterfeiters. The activation pattern differs from the conventional row-by-row scanning sequence, creating a unique security feature that is difficult to forge while remaining implementable through standard display control circuitry.
Solution Approach 2:
The patent changes the temporal parameter of display element activation from the conventional sequential pattern to a customized non-standard sequence. This parameter modification creates a security feature embedded in the timing characteristics of the display, making the document harder to counterfeit while maintaining manufacturing feasibility.
3Reliability
If access control mechanisms are implemented, then security against unauthorized reading is improved, but complexity of the system increases
Solution Approach 1:
The patent applies universality by designing access control mechanisms that serve multiple functions: they authenticate users, control data access, prevent unauthorized reading, and enable secure communication. This multi-functionality reduces the need for separate dedicated security components, thereby managing system complexity while enhancing security.
Solution Approach 2:
The patent uses cryptographic copying and verification mechanisms where authentication credentials and security parameters are copied into secure storage and verified through cryptographic protocols. This approach provides strong security without requiring complex physical security features, managing system complexity through information-theoretic security methods.
Data Source
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AI summary
The invention relates to a document comprising an integrated display device (102), a memory (126) for storing data (106), and means (104) for triggering the display device to represent the data. The display device has several display elements (103) which are arranged in a distributed manner within the space of the display device. The triggering means are designed such that the display elements are triggered in an order that deviates from the arrangement of the display elements in space during an image repetition period for representing the data.