Electronic Key Feature Data Encryption for Unlock Security

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Solution Overview

Problem

The security of unlocking systems using electronic keys is poor, as they can be easily compromised by theft frequency decoding, leading to unauthorized access.

Innovation Solution

The proposed solution involves an electronic key and lock system where the key obtains feature data (such as fingerprint, time, and environmental data) when an unlock operation is triggered, encrypts it, and sends it to the lock, which decrypts and matches it against prestored data to execute the unlock operation only if the data matches, thereby enhancing security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If electronic key transmits radio frequency signal for unlocking, then convenience of operation is improved, but security deteriorates due to theft frequency decoding

Engineering Contradiction:
Improveconvenience of electronic key unlockingVSAvoidsecurity of unlocking system
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent segments the authentication process into multiple independent verification stages: first verifying the electronic key's identity through encrypted data transmission, then separately verifying feature data (fingerprint, facial recognition, etc.) through matching operations. This multi-stage segmentation prevents single-point security failures and blocks theft frequency decoding attacks.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary verification of the electronic key's feature data before executing the unlock operation. The lock device obtains feature data, performs matching operations against stored data, and only then proceeds to unlock. This preliminary action ensures security validation completes before access is granted, preventing unauthorized access even if the electronic key signal is intercepted.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If multiple verification steps are added to improve security, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvesecurity of unlocking systemVSAvoidcomplexity of unlocking system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The lock device integrates multiple functions into a single unified system: it can receive and verify encrypted data from electronic keys, obtain various types of feature data (fingerprint, facial recognition, iris recognition), perform matching operations, and execute unlock operations. This multi-functionality reduces the need for separate dedicated devices for each security layer, thereby managing complexity while maintaining high reliability.

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

Data Source

PatentUS10759385B2Electronic lock and key for performing an unlock operation
Publication Date: 2020.09.01 TENCENT TECHNOLOGY (SHENZHEN) CO LTD
  • US10759385B2 patent drawing
  • US10759385B2 patent drawing
  • US10759385B2 patent drawing

AI summary

An electronic unlocking system includes an electronic lock and an electronic key. The electronic key includes processing circuitry and transmission circuitry. The processing circuitry is configured to obtain at least one piece of feature data when an unlock operation is triggered. The at least one piece of feature data includes data representing a user that triggers the unlock operation. The processing circuitry is configured to encrypt the obtained at least one piece of feature data to obtain encrypted data. The transmission circuitry is configured to send the encrypted data to the electronic lock to cause the electronic lock to execute the unlock operation.