Sensor-Triggered File Encryption for Lower-Complexity Security

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Solution Overview

Problem

Current file encryption methods relying on fingerprint recognition combining hardware and software are complex, costly, and have immature software algorithms with low security.

Innovation Solution

A method using a sensor unit within an electronic device to detect trigger operations and match them against preset encryption conditions in a database, determining target file data according to specific rules, and encrypting it using a corresponding encryption key, thereby achieving file encryption through a combination of hardware and software.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fingerprint recognition combining hardware and software is used for file encryption, then file security is improved, but solution complexity and cost increase

Engineering Contradiction:

Improvefile securityVSAvoidsolution complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the encryption function from complex fingerprint recognition systems and implements it using existing sensor units already present in electronic devices. By utilizing sensors that detect touch operations, pressure, temperature, or light, the system achieves encryption capabilities without requiring dedicated fingerprint recognition hardware, thereby reducing solution complexity while maintaining security.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent makes existing sensor units multi-functional by enabling them to perform both their original detection functions and encryption trigger functions. The same sensor unit that detects touch, pressure, temperature, or light can also serve as the basis for triggering encryption operations, eliminating the need for separate dedicated hardware and reducing overall system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If fingerprint recognition combining hardware and software is used for file encryption, then file security is improved, but implementation difficulty increases

Engineering Contradiction:

Improvefile securityVSAvoidimplementation difficulty

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent enables existing sensor units to serve themselves by detecting their own operational states (touch, pressure, temperature, light) and using these detections to trigger encryption operations. The sensor units inherently provide the detection capability, and the system leverages this self-detection ability to initiate encryption without requiring external fingerprint recognition modules, thereby simplifying implementation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent merges the detection function and encryption trigger function into a single integrated process. The sensor unit's detection of user operations is directly coupled with the encryption triggering mechanism, combining what were previously separate functions (fingerprint detection and encryption initiation) into a unified flow that reduces implementation complexity.

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If software algorithm for fingerprint recognition is used, then hardware cost is reduced, but security and maturity decrease

Engineering Contradiction:

Improvehardware costVSAvoidsecurity

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent replaces the mechanical/biological fingerprint recognition system with an operational detection system based on sensor units. Instead of relying on complex software algorithms that analyze fingerprint patterns, the system uses sensors to detect physical operations (touch, pressure, temperature change, light exposure) that inherently trigger encryption, substituting algorithmic complexity with physical detection simplicity while maintaining or enhancing security.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Reliability

If multiple sensors are combined for trigger operation detection, then encryption reliability is improved, but device complexity increases

Engineering Contradiction:

Improveencryption reliabilityVSAvoidsensor combination complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent uses the sensor unit's detection of operational parameters as an intermediary between user action and encryption triggering. The sensors detect physical parameters (touch, pressure, temperature, light) that serve as intermediate signals to activate encryption, providing a reliable and simple bridge between user intent and system response without requiring complex direct control mechanisms.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP3299987B1Information processing method, electronic device, and computer storage medium

Publication Date: 2021.03.31 XIAN ZHONGXING NEW SOFTWARE

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AI summary

Embodiments of the present invention provide an information processing method, an electronic device and a computer storage medium, the electronic device obtains, by the sensor unit, at least one trigger operation; detects whether the at least one trigger operation meets a preset encryption condition to acquire a detection result; determines target file data according to preset rules when the detection result is the at least one trigger operation meets the preset encryption conditions; and encrypts the target file data.