Secure Router Architecture for Authenticated Internal Data Access
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Solution Overview
Problem
Existing electronic devices face challenges in protecting internal data exchange and minimizing device size while integrating secure communications between different functionalities, particularly in complex systems like mobile phones and tablets.
Innovation Solution
Implementing a secure element and a router within the electronic device that can be put into a secure mode, requiring authentication for access to data, and managing internal and external communications, with the router adapting protocols and applying security policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If new electronic components are integrated to improve security and add features, then security functionality is enhanced, but the surface area occupied by chips increases
Solution Approach 1:
The patent merges the router and secure element into a single integrated chip structure. The router includes a first core for managing communications and a second core for implementing authentication methods, along with a secure element for storing authentication data. This integration consolidates multiple security-related components into one chip, enhancing security functionality while minimizing the total surface area occupied compared to separate discrete components.
2Reliability
If a router implements authentication methods for secure data access, then data protection is improved, but device complexity increases
Solution Approach 1:
The router is segmented into two distinct cores: a first core responsible for managing communications between modules, and a second core dedicated to implementing authentication methods. This segmentation allows each core to specialize in its function, improving data protection through dedicated authentication processing while managing complexity by clearly separating responsibilities between cores rather than having a monolithic complex structure.
Solution Approach 2:
The secure element acts as an intermediary component within the router, specifically designed to store authentication data and provide it to the second core during authentication processes. This intermediary structure simplifies the overall router architecture by creating a dedicated data storage layer that mediates between the authentication logic and the communication management, reducing the complexity burden on the main router structure.
Data Source
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AI summary
This description relates to a method of communicating, to a third module of a first electronic device, first data (DATA4) exchanged between a first module of the first electronic device and a second module, the third module being different from the first and second modules, the first device comprising at least one secure element (402) and a router (401) transmitting the first data (DATA4) from the first module to the second module, the router (401) being adapted to be put into a secure mode in which, when the third module requests access to the first data (DATA4), an authentication method is implemented to verify whether the third module is authorized or not to have access to the first data (DATA4).