Secure Element Authentication for IoT Control Systems
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Solution Overview
Problem
Existing authorization solutions for remote and automatic control in IoT devices are vulnerable to hacks due to potential software flaws, compromising both user devices and IoT devices, necessitating secure communication methods that are resistant to such threats.
Innovation Solution
The implementation of secure elements in both user devices and IoT devices, optionally assisted by a trusted third party, for secure pairing and authentication, where the secure elements verify the authenticity of commands and authorize actions based on their source, ensuring only authorized commands are executed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If software-based authorization solutions are used for remote control in IoT devices, then ease of operation and implementation are improved, but security reliability deteriorates due to vulnerability to hacks and software flaws
Solution Approach 1:
A secure element acts as an intermediary component between the software application and the IoT device. This hardware-based secure element stores cryptographic keys and performs authentication operations, mediating the authorization process to prevent software vulnerabilities from compromising security. The secure element is a separate hardware module that interfaces with both the controlling device and the controlled IoT device, enabling secure communication without exposing the system to software-based attacks.
Solution Approach 2:
The patent replaces software-based authorization mechanisms with hardware-based secure elements. Instead of relying on software cryptographic implementations that are vulnerable to hacking, the system uses dedicated hardware security modules that perform authentication and key management operations in a physically protected environment, making them resistant to software attacks and exploitation.
2Reliability
If hardware-protected secure elements are implemented in both user devices and IoT devices, then security reliability is improved, but device complexity increases
Solution Approach 1:
The security-critical functions are extracted into a separate, dedicated secure element component. This allows the main device architecture to remain relatively simple while the complex security operations are handled by the specialized secure element module. The secure element can be integrated into existing devices as a separate component, minimizing disruption to the overall device design and reducing the complexity burden on the main system architecture.
Solution Approach 2:
The secure element is designed as a universal component that can be integrated into various IoT devices and controlling devices with different form factors and functions. It provides standardized security services (authentication, key management, encrypted communication) that work across multiple device types, reducing the need for device-specific security implementations and thereby lowering overall system complexity.
Data Source
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AI summary
A first device includes an application processor, a secure processor, and a control processor. The application processor is configured to receive a control command from a second device. The secure processor is connected between the application processor and a control processor and is configured to authenticate the control command. The control processor is configured to receive the control command when the control command is authenticated by the secure processor, execute the control command to activate at least one function of the first device, and transmit a response to the second device.