Visual Financial IC Card Online Transaction Security
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Solution Overview
Problem
The existing financial IC cards require a POS machine for transactions, which is insecure and inconvenient.
Innovation Solution
A method and system for online transactions using a visual financial IC card that allows transactions without a POS machine, involving data reception, PIN encryption, behavior analysis, and message organization between the card, client, and server to facilitate secure and convenient transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a POS machine is used for financial IC card transactions, then transaction security is maintained, but transaction convenience deteriorates
Solution Approach 1:
The financial IC card performs self-service by independently completing authentication, encryption, and transaction processing without requiring external POS machine assistance. The card's embedded processor executes transaction programs locally, and the display module provides visual feedback directly to users, enabling standalone operation that improves convenience while maintaining security through the card's built-in cryptographic capabilities.
Solution Approach 2:
The invention extracts the essential transaction processing functions from the POS machine and relocates them to the financial IC card itself. By embedding the processor, memory, and cryptographic modules within the card, the system removes the dependency on external equipment while preserving the security functions that were previously provided by the POS machine.
2Reliability
If a POS machine is required for transactions, then transaction security is ensured, but device complexity increases
Solution Approach 1:
The invention merges multiple previously separate components into a single integrated financial IC card unit. The processor, encryption module, display module, and memory are combined within the card's compact structure, eliminating the need for separate POS machine hardware and reducing overall system complexity while maintaining security through integrated cryptographic operations.
Solution Approach 2:
The financial IC card is designed as a multi-functional device that performs authentication, encryption, transaction processing, and visual display functions all within a single card unit. This universal design replaces the need for specialized POS machine equipment, reducing system complexity while ensuring security through multiple functions implemented in one secure element.
3Reliability
If online PIN encryption is performed in the card, then transaction security is improved, but processing time increases
Solution Approach 1:
The financial IC card performs preliminary action by pre-loading cryptographic algorithms and authentication data into its memory during manufacturing or initial setup. When a transaction occurs, the card can immediately execute encryption and authentication operations using these pre-prepared resources, minimizing processing time while maintaining strong security through established cryptographic methods.
Data Source
AI summary
A method of online transaction, in which a visual financial IC card receives transaction transferring data from a client, obtains transaction data, receive an online PIN from a user, obtains online PIN ciphertext by encrypting, executes behavior analyzing to obtain a card behavior analyzing result, sets a first transaction result, organizes message according to the transaction data, the online PIN ciphertext, the card behavior analyzing result and the first transaction result, and sends the message to the client; receives an online response package sent by the client, executes completing process to obtain a completing process result, sets a second transaction result, displays a corresponding information, organizes a data package according to the second transaction result and the completing process result, and sends the data package to the client. In this invention, any transaction terminal is avoided to improve security and convenience of the online financial IC card transaction.