Electronic Coin Data Transfer with Inactive Status and Receipt Checks
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Solution Overview
Problem
Existing payment systems face challenges in ensuring secure, flexible, and efficient transmission of electronic coin data sets while preventing double spending and unauthorized transactions, particularly in direct and anonymous payments between devices without central entity involvement.
Innovation Solution
A method involving security elements that manage electronic coin data sets by setting an inactive status, transmitting a copy, checking for receipt confirmation, and deleting the sent data set, ensuring secure and efficient transactions without central entity verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electronic coin data sets are transmitted directly between terminals without central entity involvement, then payment flexibility and speed are improved, but security risks increase due to potential double spending and manipulation
Solution Approach 1:
The system performs preliminary actions by setting the coin data set status to inactive before transmission, and by creating a deletion request that will be executed after receipt confirmation. This preliminary status change prevents the sender from using the same coin again, while the deferred deletion ensures the coin becomes valid for the recipient
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a coordinated status management system between sender and recipient. The deletion request and receipt confirmation protocol acts as a mediator that ensures secure transfer without requiring continuous central entity involvement, resolving the contradiction between direct transmission speed and security
2Reliability
If the coin register continuously monitors all electronic coin transactions, then detection of double spending is improved, but system complexity and processing overhead increase
Solution Approach 1:
The system implements self-service by enabling terminals to autonomously manage coin data set status and handle transmission security. The sender automatically sets status to inactive, and the recipient automatically processes deletion requests and sends confirmations, eliminating the need for continuous coin register monitoring of each transaction
Solution Approach 2:
The patent extracts the security-critical status management functions from the central coin register and places them in the distributed terminals. Each terminal independently manages its own coin data set status, removing the processing burden from the coin register while maintaining security through the coordinated status change protocol
3Reliability
If electronic coin data sets remain active in the sender's security element until confirmation, then transaction security is improved, but transmission time increases due to waiting for receipt confirmation
Solution Approach 1:
The system performs the status change to inactive as a preliminary action before actual transmission completes. This allows the coin to be marked as unavailable to the sender immediately, while the physical transmission and confirmation process continues in parallel, optimizing both security and timing
Data Source
AI summary
A first security element is for transmitting an electronic coin data set to a second security element. The electronic coin data set is registered in a coin register of a payment system. The method has the steps of: setting a status of the electronic coin data set from the security element to an inactive status; transmitting the electronic coin data set from the first security element to the second security element; checking whether a receipt confirmation from the second security element has been received in the first security element; and deleting the transmitted electronic coin data set if the checking step results in that the receipt confirmation has been obtained by the first security element. The aforementioned relates to a payment system, a coin register, a security element, and a terminal for transmitting electronic coin data sets.