Ciphertext Decryption Authentication Unit for Electronic Test Equipment
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Solution Overview
Problem
The security protection performance of optional functions in traditional electronic test equipment is inadequate, as the decryption and enablement of these functions are typically handled by software, making them vulnerable to hacking and tampering.
Innovation Solution
The introduction of a ciphertext decryption authentication unit in electronic test equipment, which acquires a function option ciphertext and key, performs decryption authentication, and enables or disables the corresponding function device based on the authentication result, thereby shifting the decryption process away from the operation control unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If decryption and enablement of optional functions are handled by software in the operation control unit, then the ease of operation is improved, but the security protection performance deteriorates
Solution Approach 1:
The patent divides the electronic test equipment into distinct functional modules: the operation control unit (software layer) and the ciphertext decryption authentication unit (hardware layer). This segmentation allows the operation control unit to maintain ease of operation for users while the separate authentication unit provides secure decryption, thus resolving the contradiction between ease of operation and security protection performance.
Solution Approach 2:
The ciphertext decryption authentication unit acts as an intermediary between the user input (ciphertext) and the operation control unit. It performs secure hardware-based authentication and decryption, mediating the security requirements without affecting the user interface or operation control unit's ease of use. This intermediary layer resolves the contradiction by handling security concerns separately from the operational interface.
2Reliability
If a ciphertext decryption authentication unit is introduced to perform secure decryption, then the security protection performance is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the decryption authentication function from the operation control unit and places it in a dedicated ciphertext decryption authentication unit. This extraction consolidates the security-related operations into a single specialized component, which actually reduces overall system complexity compared to distributing security logic throughout the software. The dedicated unit provides clear boundaries and responsibilities, making the system easier to understand and maintain despite the added functionality.
Data Source
AI summary
The present application relates to an electronic test equipment and an optional function configuring method. A ciphertext decryption authentication unit performs a decryption authentication operation according to a function option key and a function option ciphertext, performs a corresponding operation on a function device corresponding to the function option ciphertext according to an authentication result signal, and outputs the authentication result signal to an operation control unit, such that the operation control unit operates, according to the authentication result signal, a target function corresponding to the function option ciphertext.