Memory Access Authentication With Selective Disablement
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Solution Overview
Problem
Unauthorized access to memory devices poses a security risk by revealing sensitive information, as unauthorized third parties can probe and control memory systems, compromising security protocols.
Innovation Solution
Memory devices are equipped with a security module and communication channels to monitor power and clock signals, authenticate host systems, and perform non-destructive disablement operations if unauthorized access is detected, ensuring only authorized systems can access the memory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If memory devices are made accessible to host systems for normal operation, then system functionality and productivity are improved, but security vulnerabilities increase allowing unauthorized access and information leakage
Solution Approach 1:
The patent implements preliminary authentication actions before allowing memory device access. The host system must present valid credentials and receive authentication confirmation in advance before any memory operations are permitted, preventing unauthorized access before it can occur
Solution Approach 2:
The patent introduces an intermediary authentication mechanism between the host system and memory device. This intermediary layer verifies credentials and controls access permissions, allowing legitimate functionality while blocking unauthorized access attempts
2Object-affected harmful factors
If security authentication mechanisms are implemented in memory devices, then security against unauthorized access is improved, but device complexity increases
Solution Approach 1:
The patent extracts the authentication logic into a separate, dedicated security module within the memory device. This extraction allows the authentication functionality to be implemented without significantly complicating the main memory device structure, as the security module operates as a distinct component with specialized functions
3Loss of substance
If non-destructive disablement operations are implemented, then electronic waste is reduced and sustainability is improved, but security protocol complexity increases
Solution Approach 1:
The patent implements disablement operations that change operational parameters of the memory device rather than causing physical destruction. By modifying electrical, magnetic, or logical parameters to render the device inoperable, the system prevents unauthorized access while avoiding electronic waste from destroyed components
Data Source
AI summary
In some implementations, a memory device may obtain, via a channel coupled to one or more memory devices of a memory system, one or more signals indicating respective power consumptions of the one or more memory devices, wherein the memory device is included in the one or more memory devices. The memory device may identify an interruption associated with the one or more signals. The memory device may determine, based on the identification of the interruption, whether a host system associated with the memory system is authorized to access the memory device. The memory device may selectively, based on the determination of whether the host system is authorized to access the memory device, perform a disablement operation on the memory device or perform one or more second commands obtained from the host system.