Single Management Memory Device for Error Correction and Encryption
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Solution Overview
Problem
Current error correction techniques for data storage require excessive memory overhead and lack security, using multiple management memory devices for error detection and correction, which leads to inefficient systems with high costs and limited capabilities.
Innovation Solution
A data error manager that utilizes a single management memory device to provide error detection, location, and correction, combined with cryptographically secure memory encryption and integrity, using a single management memory device to reduce resources and prevent adversarial attacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple management memory devices are used for error detection and correction, then error correction capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple management memory devices into a single management memory device that integrates error detection, error correction, and memory encryption functions. This merging reduces the total number of devices while maintaining comprehensive error correction capability through unified management of error correction codes and encryption operations.
Solution Approach 2:
The single management memory device is designed to perform multiple functions including error detection, error correction, and memory encryption. This multi-functional approach allows one device to replace what previously required multiple specialized devices, reducing system complexity while maintaining all necessary error correction capabilities.
2Measurement precision
If multiple management memory devices are used for error correction, then error detection accuracy is improved, but memory overhead increases
Solution Approach 1:
The patent merges the functionality of multiple management memory devices into a single device, consolidating error correction codes and encryption data into one unified memory structure. This reduces the total memory overhead required for error correction while maintaining comprehensive error detection and correction capabilities through integrated management.
3Reliability
If traditional error correction techniques are used, then error correction is provided, but security against adversarial attacks is lacking
Solution Approach 1:
The patent creates a composite error correction system that combines traditional error correction codes with memory encryption techniques. This composite approach integrates both error correction functionality and security measures, making the system resistant to adversarial attacks while maintaining effective error correction capabilities.
Solution Approach 2:
The patent applies memory encryption as a preliminary protective measure before data is vulnerable to adversarial attacks. By encrypting memory data and incorporating encryption into the error correction process, the system proactively prevents attacks rather than merely responding to them, thereby securing against harmful factors while maintaining error correction.
Data Source
AI summary
In one embodiment, an apparatus comprises a controller comprising circuitry, the controller to generate an error correction code for a memory line, the memory line comprising a plurality of first data blocks, wherein the error correction code comprises parity bits generated based on first portions of a plurality of second data blocks, wherein the plurality of second data blocks are the first data blocks or diffused data blocks generated from the plurality of first data blocks; generate a metadata block corresponding to the memory line, wherein the metadata block comprises the error correction code for the memory line and at least one metadata bit; encode the first data blocks and the metadata block; and provide the encoded data blocks and the encoded metadata block for storage on a memory module.