Inter-Chip Encryption for Secure Sensor and Control Data Transfer
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Solution Overview
Problem
Conventional information security mechanisms do not provide protection for information transmitted between different chips within a single electronic device, making it vulnerable to theft.
Innovation Solution
Implementing a control chip and sensing chip with encryption and decryption capabilities, where each chip encrypts output information using a unique key stored internally and outputs encrypted data via a shared transmission path, ensuring only authorized chips can decrypt the information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional information security mechanisms are used, then information transmission between electronic devices is protected, but information transmission between chips within the same device is vulnerable to theft
Solution Approach 1:
The patent divides the information security protection scope into segments: device-to-device transmission and chip-to-chip transmission. It applies different security mechanisms to each segment, with the encryption module specifically targeting intra-device chip communication to fill the security gap in conventional systems that only protected inter-device transmission.
Solution Approach 2:
The patent introduces an encryption module as an intermediary component between the sensor chip and control chip. This module encrypts information before it is transmitted through the transmission path, acting as a security mediator that prevents unauthorized access while allowing legitimate communication between chips.
2Reliability
If encryption is implemented between chips, then information security is enhanced, but system complexity increases
Solution Approach 1:
The patent combines the encryption and decryption functions into a single integrated encryption module that interfaces with both the sensor chip and control chip. This merging approach simplifies the overall system architecture compared to having separate encryption components in each chip, reducing system complexity while maintaining security.
Solution Approach 2:
The encryption module automatically performs encryption on information from the sensor chip and decryption for the control chip without requiring manual intervention or complex key management protocols. The system serves itself through automated cryptographic operations, reducing operational complexity.
Data Source
AI summary
A control chip, comprising: a control circuit, configured to encrypt output information by a key to generate encrypted information, and configured to output the encrypted information to a sensor via a transmission path, wherein the transmission path and the sensor are outside the control chip. A sensing chip is also disclosed, comprising: a sensor, configured to encrypt output information by a key to generate encrypted information, and outputs the encrypted information to a control circuit via a transmission path, wherein the control circuit and the transmission path are outside the sensing chip. A corresponding sensing system control method is also disclosed. Thereby a proper information security mechanism can be provided, to enhance the information security of information transmitted between different chips inside an electronic device.