Multi-User Secure Key Generation via Dynamic Authentication Element Combination

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Solution Overview

Problem

Existing security authentication methods rely on single-user authentication elements, which can lead to exposure of secure keys if authentication information is compromised, and do not efficiently generate unique secure keys for each use or time period.

Innovation Solution

A security authentication system that automatically collects authentication elements from multiple user terminals, randomly and multi-dimensionally combines these elements to generate a secure key, which is usable for a limited time or single use, enhancing security by varying the key generation process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If single-user authentication elements are used for secure key generation, then the authentication process is simple, but the security is vulnerable to exposure if authentication information is compromised

Engineering Contradiction:
ImprovesecurityVSAvoidauthentication process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines authentication elements from multiple users (first user terminal and second user terminal) to generate a single secure key. The key generation unit integrates authentication information from different users, so that the secure key depends on multiple authentication elements rather than a single user's credentials, thereby improving security while maintaining process simplicity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The secure key is constructed as a composite of multiple authentication elements from different users. Instead of using a single authentication material, the system creates a composite key structure that incorporates cryptographic materials from multiple sources, making the key more resistant to compromise while the underlying process remains straightforward

Inventive Principle:
Principle #40Composite materials

2Productivity

If the same secure key is used for multiple uses or time periods, then the authentication process is efficient, but the security is reduced if the key is exposed

Engineering Contradiction:
Improveauthentication efficiencyVSAvoidsecurity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements dynamic secure key generation where the key is created fresh for each authentication request rather than reusing a static key. The key generation unit dynamically combines current authentication elements from multiple users to produce a new secure key each time, ensuring that even if one key is compromised, previous and future keys remain secure while maintaining authentication efficiency

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the parameters of key generation by incorporating time-varying or request-varying authentication elements. Each authentication operation uses updated authentication information from the user terminals, resulting in different secure keys for different uses or time periods, thereby preventing the security risks associated with key reuse while preserving operational efficiency

Inventive Principle:
Principle #35Parameter changes

3Reliability

If authentication elements from multiple users are combined to generate secure keys, then the security is enhanced, but the complexity of the authentication process increases

Engineering Contradiction:
ImprovesecurityVSAvoidauthentication process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The user terminals automatically provide their authentication elements to the key generation unit without requiring manual intervention from users. The system self-services by automatically collecting, combining, and generating secure keys from multiple authentication elements, thereby enhancing security through multi-user integration while minimizing the perceived complexity for end users

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The key generation unit acts as an intermediary that automatically manages the combination of authentication elements from multiple users. This intermediary component handles the complexity of multi-user authentication integration in the background, presenting a simplified interface to users while implementing sophisticated security measures through automatic element combination and key generation

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If secure keys are generated for limited use or specific time periods, then the security is improved by limiting exposure, but the overhead of frequent key generation increases

Engineering Contradiction:
ImprovesecurityVSAvoidkey generation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system implements periodic or on-demand secure key generation based on authentication requests or time intervals. The key generation unit creates fresh secure keys at appropriate periods (each authentication session or after specific time intervals), limiting the exposure window of each key while using efficient algorithms to minimize the time overhead of generation, thus balancing security improvement with acceptable performance

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS10615975B2Security authentication method for generating secure key by combining authentication elements of multi-users
Publication Date: 2020.04.07 JEON SEUNG JU
  • US10615975B2 patent drawing
  • US10615975B2 patent drawing
  • US10615975B2 patent drawing

AI summary

The present invention relates to a security authentication method for generating a secure key by combining authentication elements of multi-users, and more particularly, to a security authentication method for generating a secure key by combining authentication elements of multi-users so as to collect information from multi-users in a smart terminal-based security authentication environment and generate a secure key by combining the collected information of multi-users as authentication elements, in which a new secure key is generated by multi-dimensionally cross-combining randomly authentication elements of multi-users. According to the present invention, by applying identification information automatically collected by a smart terminal as authentication elements and generating a secure key by randomly multi-dimensional cross-combining the authentication elements, it is possible to provide a security service reinforced by multilateral cooperation, so that the provided security service is coupled with existing authentication and encryption technology to be applied to various applications.