Electronic Value Transfer via Mutual Authentication and Deletion
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Solution Overview
Problem
Existing methods for transferring electronic value information, such as electronic money and tickets, face challenges in ensuring secure and reliable transfer without replication or loss, particularly when communication failures occur, and there is a risk of unauthorized access due to the involvement of third-party apparatuses.
Innovation Solution
A method and system that employs mutual authentication between source and destination terminals using common authentication information, encrypts data, temporarily invalidates electronic value information at the source terminal, and validates it at the destination, ensuring secure transfer by deleting the value information from the source terminal after confirmation of successful reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic value information is transferred using third-party apparatuses or communication networks, then the electronic value can be transmitted between terminals, but the security against unauthorized access and illegal replication is compromised
Solution Approach 1:
The patent extracts the electronic value information from the transmission path by performing the transfer directly between terminals without involving third-party apparatuses. The authentication and transfer process is self-contained between the source and destination terminals, eliminating the security risks associated with intermediate devices while maintaining transfer capability.
Solution Approach 2:
The patent applies preliminary anti-action by performing mutual authentication between terminals before the actual transfer of electronic value information. This pre-authentication step prevents unauthorized access and illegal replication by ensuring that only authenticated terminals can participate in the transfer process, countering potential security threats before they can manifest.
2Ease of operation
If electronic value information is simply replicated to the recipient, then the transfer process is simple, but the electronic value may be lost or replicated illegally due to communication failures or machine failures
Solution Approach 1:
The patent performs preliminary actions by temporarily invalidating the electronic value information at the source terminal before completing the transfer to the destination terminal. This ensures that if any failure occurs during transmission, the electronic value cannot be illegally replicated or lost, as it is already invalidated at the source. The simplicity is maintained through automated validation and deletion processes.
Solution Approach 2:
The patent implements a feedback mechanism where the destination terminal validates the received electronic value information and sends confirmation back to the source terminal. Based on this feedback, the source terminal decides whether to permanently delete the electronic value information. This feedback loop ensures reliable transfer while maintaining operational simplicity through automated decision-making.
3Productivity
If electronic value information is left in the source terminal after transfer, then the transfer process is complete, but the electronic value remains accessible and vulnerable to unauthorized use
Solution Approach 1:
The patent applies the discarding principle by automatically deleting the electronic value information from the source terminal after successful transfer and validation. The system discards the original electronic value once it confirms the transfer is complete and the destination terminal has successfully received and validated the information, eliminating the risk of unauthorized use while maintaining transfer productivity.
4Reliability
If mutual authentication and validation processes are implemented, then security against illegal replication is improved, but the transfer process becomes more complex
Solution Approach 1:
The patent merges the authentication and transfer processes into a unified workflow where mutual authentication, transfer, validation, and deletion occur as an integrated sequence. By combining these functions into a single coherent process rather than separate operations, the system achieves high security against illegal replication while minimizing the perceived complexity for users.
Data Source
AI summary
A method and system of transmitting electronic value information between terminals. The method includes the steps of: authenticating each other between a transmission source terminal and a destination terminal; sharing authentication for common information obtained by the authentication; encrypting data including the electronic value information to be transmitted; transferring the encrypted electronic value information to the destination terminal when the terminals are recognized with each other; temporarily invalidating the electronic value information left in the source terminal; transmitting reception confirmation to the source terminal when the destination terminal completes reception of the electronic value information; deleting the invalidated electronic value information left in the source terminal when the reception confirmation is received by the source terminal; transmitting validation information to the destination terminal after the deletion of the electronic value information in order to validate the electronic value information; receiving and validating the electronic value information by the destination terminal.