Authentication Logging via Circuit Degradation in Memory Devices

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Solution Overview

Problem

Memory devices face security threats due to unauthorized commands, and existing technologies lack effective methods to log and identify such threats, which can lead to data corruption and unauthorized access.

Innovation Solution

The implementation of degradation circuitry within memory devices to log authentication attempts by degrading specific components in response to unauthorized commands, allowing for the recording of errors and their timing, thereby enabling the evaluation of potential security threats.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If authentication sequences are performed to verify authorized commands, then security protection is improved, but the device cannot log authentication failures without additional logging circuitry

Engineering Contradiction:
Improvesecurity protectionVSAvoidlogging circuitry
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes existing authentication circuitry perform dual functions: verifying command authenticity and logging authentication failures. The same circuit components that execute authentication sequences are also used to detect and record failed attempts, eliminating the need for separate logging circuitry and reducing device complexity while maintaining security protection

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The authentication circuitry logs its own failure states without requiring external logging components. When an authentication sequence fails, the circuit automatically detects the failure condition and triggers the logging mechanism using its own internal resources, making the system self-sufficient and avoiding additional complexity

Inventive Principle:
Principle #25Self-service

2Loss of information

If separate logging circuitry is added to record authentication failures, then logging capability is improved, but device complexity and resource usage increase

Engineering Contradiction:
Improveauthentication failure loggingVSAvoidcircuitry
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent combines the logging function with existing authentication circuitry, making the same hardware components serve both authentication verification and failure logging purposes. This multi-functionality approach captures authentication failure information without adding separate logging circuitry, thereby preventing information loss while avoiding increased device complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If authentication sequences are implemented, then unauthorized command detection is improved, but timing information of failures cannot be captured without additional circuitry

Engineering Contradiction:
Improveunauthorized command detectionVSAvoidtiming information
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent enables the authentication circuitry to simultaneously detect unauthorized commands and capture the timing of authentication failures. The same circuit that verifies authentication also monitors and records temporal information about failures, eliminating the need for separate timing circuitry while preserving both detection capability and timing information

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enables the identification and logging of security threats by recording authentication failures and their duration, facilitating the investigation of data corruption and unauthorized access, thus enhancing memory device security.

Implementation Method 1

logging the error and a time of the error in circuitry configured by degrading the circuitry

Methodology Applied
Scientific EffectCircuitry degradation:

Data Source

PatentUS11580214B2Authentication logging using circuitry degradation
Publication Date: 2023.02.14 MICRON TECHNOLOGY INC
  • US11580214B2 patent drawing
  • US11580214B2 patent drawing
  • US11580214B2 patent drawing

AI summary

Apparatuses and methods related to logging failed authentication attempts. Failed authentication attempts can be logged in the circuitry by degrading the circuitry. The degradation can signal a fail authentication attempt while an amount of the degradation can represent a timing of the error.