Financial IC Card Dynamic Verification Code Personalization
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Solution Overview
Problem
Current financial IC card systems with dynamic verification codes lack effective personalization, making them vulnerable to internet fraud as they cannot adequately protect users from unauthorized transactions.
Innovation Solution
A personalized method and system for a financial IC card that involves generating and updating a dynamic verification code through a secure channel, using a personalized device to manage and verify the code, ensuring secure transactions by dispersing a master key to create a unique dispersed key for encryption and decryption processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a financial IC card uses a static verification code, then the card structure is simple and easy to manufacture, but the card is vulnerable to internet fraud and lacks security
Solution Approach 1:
The patent implements a dynamic verification code that changes over time or with each transaction, replacing static verification codes. The personalization device stores multiple verification codes and selectively provides them based on transaction context, making the verification mechanism dynamic and adaptive to different security requirements while maintaining system manageability.
Solution Approach 2:
The patent introduces a personalization device as an intermediary between the financial IC card and the verification system. This device manages the verification codes, handles the logic for code selection and updates, and communicates with both the card and external systems, thereby isolating the card's complexity from the overall system while enabling advanced security features.
2Reliability
If a financial IC card implements dynamic verification code updates, then the security against fraud is improved, but the personalization system cannot meet the requirements for effective implementation
Solution Approach 1:
The patent segments the verification code management into distinct components: the financial IC card stores basic account information, the personalization device manages the dynamic verification codes and update logic, and external systems provide verification requests. This segmentation allows each component to specialize in its function, enabling dynamic verification code updates while maintaining clear system boundaries and adaptability.
Solution Approach 2:
The patent enables the verification code to change based on various parameters such as time, transaction amount, location, or user behavior patterns. The personalization device monitors these parameters and automatically updates the verification code when predefined conditions are met, providing adaptive security that responds to changing circumstances without requiring complex manual intervention.
3Ease of operation
If the verification code is updated automatically, then the user convenience is improved, but the system requires sophisticated personalization functionality that is currently unavailable
Solution Approach 1:
The patent implements automatic verification code updates where the personalization device autonomously monitors transaction conditions, selects appropriate verification codes from its storage, and provides them to the financial IC card without requiring user intervention. The system self-manages the entire verification code lifecycle including generation, selection, update, and invalidation, thereby providing user convenience while concentrating complexity in the automated management system.
Data Source
AI summary
A personalization method for a financial IC card having a dynamic verification code, comprising: an upper apparatus organizes second personalization information comprising a second disperse key, and organizes a personalization data packet according to the second personalization information; after the upper apparatus and a personalization device establish a security channel, if the upper apparatus transmits the personalization data packet to the personalization device by means of the security channel, the personalization device writes the second personalization information into a financial IC card; if the upper apparatus transmits a verification request to the personalization device by means of the security channel, the personalization device reads a time window and a dynamic verification code from the financial IC card, returns the time window and the dynamic verification code to the upper apparatus by means of the security channel for verification, receives a verification result returned by the upper apparatus by means of the security channel, and if the verification is successful, reads a personalization state in the financial IC card and saves the personalization state, and returns personalization success information to the upper apparatus by means of the security channel.