Digital Certificate Issuance via Encrypted Image Envelope

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Solution Overview

Problem

Current digital certificate issuing systems are vulnerable to hacking and phishing attacks, particularly during the re-issuance process, as personal authentication information is transmitted online without face-to-face verification, and the risk of leakage is high due to the use of simple numerals and texts for authentication, leading to potential misuse by third parties.

Innovation Solution

A method and system for issuing, updating, and re-issuing digital certificates using an encrypted image, where a user-selectable image is combined with the digital certificate using steganography to create a sealed digital envelope image, which is transmitted to the user terminal only after valid authentication, and can be stored in a sealed state for secure extraction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If personal authentication information is transmitted online for re-issuance without face-to-face verification, then convenience and efficiency of digital certificate re-issuance is improved, but security and risk of hacking/phishing attacks deteriorates

Engineering Contradiction:
Improveefficiency of re-issuance processVSAvoidsecurity against hacking attacks
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent introduces a proxy server as an intermediary between the user terminal and certificate server. The proxy server receives personal authentication information from the user terminal, transmits it to the certificate server for processing, and then delivers the digital envelope image back to the user terminal. This intermediary structure allows secure online re-issuance while maintaining security through the proxy server's authentication and encryption mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the traditional mechanical face-to-face verification system with a digital encryption system. Instead of physical presence verification, the system uses encrypted image transmission and digital envelope technology to authenticate users and protect personal information during online re-issuance operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If simple numerals and texts are used for personal authentication, then ease of operation and user convenience is improved, but vulnerability to keyboard hacking and phishing attacks deteriorates

Engineering Contradiction:
Improvesimplicity of authenticationVSAvoidvulnerability to keyboard hacking
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent changes the parameter of authentication from simple text-based inputs to image-based authentication. Users select images from a gallery instead of typing passwords, fundamentally altering the authentication mechanism to resist keyboard hacking while maintaining ease of use through visual selection.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses image copying and encryption instead of text-based authentication. The selected image is copied, encrypted, and transmitted as a digital envelope, creating a secure representation of authentication that cannot be easily replicated or hacked through keyboard interception.

Inventive Principle:
Principle #26Copying

3Ease of operation

If digital certificate is stored in PC or portable storage medium, then accessibility and ease of use is improved, but prevention of theft and misuse deteriorates

Engineering Contradiction:
Improveaccessibility of digital certificateVSAvoidprotection against theft
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent embeds the digital certificate inside an encrypted image, creating a nested structure where the certificate is contained within the image data. This nesting mechanism protects the certificate from theft while maintaining accessibility, as the encrypted image can be stored and transmitted securely without exposing the underlying certificate.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The encrypted image acts as an intermediary between the digital certificate and the storage medium. Instead of storing the certificate directly, the system stores the encrypted image which contains the certificate, providing an additional layer of protection against theft and unauthorized access.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Device complexity

If conventional digital certificate issuing system is used, then system simplicity and ease of implementation is maintained, but inability to prevent hacking attacks between users and certificate agencies deteriorates

Engineering Contradiction:
Improvesimplicity of issuing systemVSAvoidsecurity against phishing attacks
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent introduces a proxy server as an intermediary component that handles authentication and encryption operations. This adds a layer of security without fundamentally complicating the overall system architecture, as the proxy server integrates with existing certificate issuance workflows while providing enhanced protection against phishing attacks.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces conventional text-based authentication mechanisms with image-based encryption technology. This substitution maintains system simplicity from the user's perspective while significantly improving security against phishing attacks through the use of encrypted digital envelope images.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach enhances security by preventing misuse of digital certificates even if personal information is leaked, improves user recognition and intuitiveness, especially on devices with small displays, and increases the efficiency and stability of the digital certificate updating and re-issuing process by minimizing hacking and phishing risks.

Implementation Method 1

combining the digital certificate with the user select image using steganography to create a sealed digital envelope image

Methodology Applied
Scientific EffectSteganography:

Data Source

PatentUS8892871B2System and method for issuing digital certificate using encrypted image
Publication Date: 2014.11.18 OLCORPS
  • US8892871B2 patent drawing
  • US8892871B2 patent drawing
  • US8892871B2 patent drawing

AI summary

The disclosure relates to a system and method for issuing a digital certificate using an encrypted image, in which a digital certificate is sealed in a digital envelope image so as to protect a digital certificate user from damages caused by hacking, phishing attacks and the like in the course of issuance, update and re-issuance of the digital certificate, and the method for issuing a digital certificate comprises the steps of: storing a user select image for issuing the digital certificate, by a proxy server or a certificate server; and requesting the certificate server to issue the digital certificate and, if the digital certificate is issued, creating a sealed digital envelope image by combining the digital certificate with the user select image and transmitting the digital envelope image to a user terminal.