Secure Document Printing with Dual-Device Authentication

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Solution Overview

Problem

Traditional QR codes used in customer interactions with financial transaction terminals are vulnerable to interception, leading to increased financial fraud, and secure document printing methods face difficulties in incorporating necessary security features without authorized user intervention.

Innovation Solution

Implementing dynamic QR codes with rapidly changing frames and authentication pulses to iteratively validate user interactions, and securely generating and printing documents through network-verified authentication of both the printing and computing devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional QR codes are used for customer authentication, then the process is simple and easy to implement, but the system becomes vulnerable to interception and financial fraud

Engineering Contradiction:
ImproveQR code authentication processVSAvoidsecurity against interception and fraud
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies dynamics by transforming static QR codes into dynamic QR codes that change over time. The QR code displayed on the terminal changes periodically, and the system captures multiple frames at different time points. This temporal dimension makes the QR code difficult to intercept or replicate, as each frame is unique and time-dependent, thereby resolving the contradiction between ease of operation and security reliability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements periodic action by displaying QR code frames at regular time intervals and capturing them at corresponding periods. The terminal displays QR code frames sequentially, and the mobile device captures frames at predetermined time points. This periodic interaction creates a time-varying authentication mechanism that prevents interception while maintaining operational simplicity.

Inventive Principle:
Principle #19Periodic action

2Reliability

If security features are added to document printing systems, then fraud resistance improves, but the printing process becomes more complex and requires authorized user intervention

Engineering Contradiction:
Improvefraud resistance in document printingVSAvoiddocument generation and printing process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies self-service by enabling the printing device to automatically perform authentication and document generation without requiring manual intervention from authorized users. The system captures images of documents, extracts features, and automatically determines whether to generate and print documents based on predefined security criteria. This automation maintains fraud resistance while significantly reducing process complexity and eliminating the need for authorized user involvement in the printing process.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces manual mechanical authentication processes with automated image processing and feature extraction algorithms. Instead of requiring physical verification by authorized users, the system uses computational methods to analyze document images, extract security features, and make automated decisions about document generation and printing, thereby reducing complexity while maintaining or improving security.

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

3Reliability

If dynamic QR codes with multiple frames are implemented, then security against interception improves, but the system complexity and processing time increase

Engineering Contradiction:
Improvesecurity validationVSAvoidQR code generation and validation system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the QR code into multiple discrete frames that are displayed and captured at different time points. Each frame is a separate component of the overall authentication sequence. This segmentation allows the system to maintain high security through multiple verification points while managing complexity by processing frames sequentially rather than simultaneously, reducing the computational burden at any single moment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system implements preliminary action by pre-configuring the sequence of QR code frames and their corresponding capture time points before the authentication process begins. The terminal is programmed to display frames in a predetermined sequence, and the mobile device is configured to capture frames at predetermined intervals. This pre-planned sequence simplifies the real-time processing requirements and reduces system complexity during execution.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12373818B2Systems and methods for securely generating and printing a document
Publication Date: 2025.07.29 CAPITAL ONE SERVICES LLC
  • US12373818B2 patent drawing
  • US12373818B2 patent drawing
  • US12373818B2 patent drawing

AI summary

Systems and methods for securely generating and printing documents are disclosed. For example, processor(s) of a computer system may receive information for the document from a computing device through a network, verify the information for the document, and upon verification, generate document generation data using at least a portion of the information for the document. The document generation data may include document metadata that enables generation of an image of the document and/or the image of the document. Upon the processor(s) verifying first authentication information of a first code associated with a printing device received from the computing device through the network and second authentication information of a second code associated with the computing device received from the printing device through the network, the processor(s) may transmit the document generation data to the printing device through the network, and cause the printing device to print the image of the document.