Encrypted Image Payment via Biometric Verification

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Solution Overview

Problem

Current online payment technologies lack sufficient security, as hackers can intercept and alter payment information during transmission between selling and paying terminals, compromising transaction integrity.

Innovation Solution

Implementing a method where the paying terminal acquires an encrypted image from the selling terminal, decrypts it to obtain payment information, and sends a payment request to a remote server via a messaging communication platform, incorporating biometric verification for large transactions to enhance security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If payment information is transmitted via network between selling terminal and paying terminal, then online payment convenience is improved, but security against hacking is worsened

Engineering Contradiction:
Improveonline payment convenienceVSAvoidpayment security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a remote server as an intermediary that generates and manages encrypted images containing payment information. Instead of direct transmission between terminals, the remote server acts as a trusted mediator that creates the encrypted image, which is then displayed on the selling terminal and captured by the paying terminal. This intermediary approach maintains convenience while enhancing security through centralized encryption management.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent uses encrypted images as a copy mechanism where the payment information is encoded into a visual format (encrypted image) that can be displayed and captured. The paying terminal captures the encrypted image from the selling terminal's display, creating a secure copy of the payment information that cannot be easily intercepted or altered during transmission.

Inventive Principle:
Principle #26Copying

2Reliability

If encrypted images are used to transmit payment information, then security against information interception is improved, but device complexity is worsened

Engineering Contradiction:
Improveinformation transmission securityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system implements self-service encryption where the remote server automatically generates encrypted images with payment information without requiring manual intervention from users or complex local encryption implementations on terminals. The encryption process is handled centrally by the remote server, which manages the cryptographic operations and distributes the encrypted images to both terminals.

Inventive Principle:
Principle #25Self-service

3Reliability

If biometric verification is required for large transactions, then transaction security is improved, but operation time is worsened

Engineering Contradiction:
Improvetransaction securityVSAvoidoperation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies different verification requirements to different transaction scenarios based on the payment amount. For small transactions below a threshold, only basic verification is needed. For large transactions above the threshold, biometric verification is required. This localized quality approach ensures high security for critical operations while maintaining speed for routine transactions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system performs preliminary verification by checking the payment amount against a threshold before determining the verification method. This preliminary action allows the system to quickly process small transactions without biometric verification while preparing for enhanced verification only when necessary for larger amounts.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11972428B2Information transmission method, apparatus and system
Publication Date: 2024.04.30 TENCENT TECHNOLOGY (SHENZHEN) CO LTD
  • US11972428B2 patent drawing
  • US11972428B2 patent drawing
  • US11972428B2 patent drawing

AI summary

Methods and devices for conducting a payment transaction between a paying terminal and a selling terminal via a remote server. In some embodiments, the paying terminal scans an encrypted image, such as a two-dimensional code, displayed on the selling terminal. The paying terminal decrypts the encrypted image to obtain payment information and sends a payment request to the remote server for processing. Security verifications may be conducted by the paying terminal or the server, and the server may generate processing results approving or denying the payment request accordingly. When the payment amount is greater than a preset value, additional verification can be carried out using, e.g., biometric information. The paying terminal and/or the selling terminal then display the processing results and the remote server completes the payment transaction.