Wireless Authentication Using Time-Related Random Codes

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Solution Overview

Problem

Existing wireless authentication methods using dynamic passwords are vulnerable to interception when transmitted between devices, failing to effectively protect devices or information from theft or misappropriation.

Innovation Solution

A wireless authentication system and method that employs a time-related random code generated by an execution end device, which is used to create a comparison authentication code with a fixed and variable password, ensuring secure authentication by preventing password interception and regularly changing the variable password.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dynamic password authentication is used to enhance security, then authentication security is improved, but the password becomes vulnerable to wireless interception

Engineering Contradiction:

Improveauthentication securityVSAvoidpassword interception

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The authentication code is segmented into multiple components: a static first authentication code stored in the database and a dynamic second authentication code generated locally. This segmentation allows the system to verify authentication without transmitting the complete dynamic password, thereby maintaining security while enabling dynamic authentication.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts the time-related random code generation and verification process from the wireless transmission path. The execution end device generates and verifies the time-related random code locally, extracting the vulnerable transmission环节 and replacing it with local cryptographic operations that do not require transmitting the dynamic password.

Inventive Principle:

Principle #2Taking out (Extraction)

2Device complexity

If a fixed password is used for authentication, then system complexity is reduced, but authentication security deteriorates

Engineering Contradiction:

Improveauthentication system complexityVSAvoidauthentication security

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent merges static password authentication with dynamic time-related random code verification. The system combines the simplicity of fixed password storage with the security benefits of dynamic codes by integrating both authentication mechanisms into a unified verification process that checks both the static first authentication code and the dynamically generated second authentication code.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS9609512B2Wireless authentication system and wireless authentication method

Publication Date: 2017.03.28 USERSTAR INFORMATION SYST

AI summary

A wireless authentication system includes an execution end device and a control end device. When the execution end device and the control end device receive an activation signal, the execution end device generates a time related random code, and transmits the time related random code to the control end device; and the control end device generates a comparison authentication code according to the time related random code, a fixed password and a variable password. When the execution end device determines that the comparison authentication code corresponds to a set of data stored in the execution end device, the execution end device performs a predetermined operation, and the variable password is changed.