BIOS-Integrated Data Wipe for Secure Deletion

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Solution Overview

Problem

Existing data wipe methods for information handling systems require booting from a floppy disk drive, which is not feasible for systems without one, necessitating the use of third-party applications and complicating secure data deletion, especially for government compliance like the DOD 3 wipe standard.

Innovation Solution

A user-selectable data wipe system integrated into the BIOS of an information handling system, allowing users to initiate a data wipe without third-party applications by selecting options from a BIOS boot menu or keystroke combinations, writing patterns of 0s and 1s to all data bits, and incorporating multiple confirmation steps for security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If third-party data wipe applications are used, then data can be securely deleted, but the system requires a floppy disk drive which is not available in modern systems

Engineering Contradiction:

Improvedata deletion securityVSAvoidcompatibility with systems without floppy drive

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent extracts the data wipe functionality from external third-party applications and floppy disk dependencies, integrating it directly into the BIOS firmware. This allows the system to perform secure data deletion using built-in BIOS capabilities rather than requiring external software and media, thereby resolving the contradiction between data deletion security and system compatibility.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The BIOS is enhanced to provide self-service data wipe capabilities, allowing the system to securely delete data using its own integrated functions without requiring external third-party applications. The BIOS can initiate and complete the data wipe process autonomously, eliminating the need for floppy disk drives or external software while maintaining secure data deletion.

Inventive Principle:

Principle #25Self-service

2Ease of operation

If BIOS-integrated data wipe is implemented, then external devices are not needed, but the BIOS must be modified to include wipe functionality

Engineering Contradiction:

Improvesimplicity of data wipe processVSAvoidBIOS modification complexity

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

The patent merges the data wipe functionality with the existing BIOS system, combining what were previously separate functions (BIOS boot process and data deletion) into a unified integrated solution. This allows the system to perform secure data deletion directly from the BIOS menu without requiring external devices, simplifying the user process while the modification is implemented during BIOS development and testing phases.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS8145891B2Bios-selectable data wiping system

Publication Date: 2012.03.27 DELL PROD LP

AI summary

A data storage device includes a computer-readable medium encoded with a computer program that, when executed communicates with a basic input/output system (BIOS), receives a user selection from the BIOS to wipe the data storage device and performs a wipe of the data storage device. In an embodiment, the wipe of the data storage device includes writing a series of 1s and/or 0s to substantially all data bits of the data storage device.