Local Chip Verification for Dual-Offline Digital Currency Payments
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Solution Overview
Problem
Existing digital currency payment systems struggle to achieve dual-offline peer-to-peer transactions efficiently, failing to satisfy both full scene coverage and high transaction rate requirements simultaneously.
Innovation Solution
A digital currency payment method and apparatus that utilizes a local security chip in payment devices to determine and verify transaction information, including digital currency or identification information, and updates the balance accordingly, supporting dual-offline and single-offline transactions through network status and device form-specific instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dual-offline peer-to-peer transactions are implemented using digital currency expression verification, then full scene coverage is achieved, but transaction rate decreases due to long verification time
Solution Approach 1:
The patent segments the digital currency system into two parts: a local security chip for fast offline verification and a backend system for online operations. This segmentation allows the system to achieve full scene coverage by handling both online and offline scenarios while maintaining high transaction rates through local verification capabilities.
Solution Approach 2:
The patent implements preliminary action by pre-storing digital currency expressions and verification data in the local security chip before offline transactions occur. This preparation enables instant verification during offline transactions without requiring real-time network communication, thus maintaining high transaction rates while achieving full scene coverage.
2Reliability
If online transfers use backend account deduction methods, then transaction security is maintained, but dual-offline peer-to-peer transactions cannot be achieved
Solution Approach 1:
The patent introduces a local security chip as an intermediary between the user and the backend system. This intermediary stores and verifies digital currency expressions locally, enabling dual-offline peer-to-peer transactions while maintaining transaction security through cryptographic verification, thus resolving the contradiction between security and offline capability.
3Adaptability or versatility
If transaction verification transmits expression information between devices, then dual-offline payments are enabled, but verification time increases significantly
Solution Approach 1:
The patent applies preliminary action by pre-generating and storing multiple digital currency expressions in the local security chip before offline transactions. During offline payments, the system instantly verifies transactions using these pre-stored expressions without requiring time-consuming network transmission, thus enabling dual-offline capability while minimizing verification time.
Data Source
AI summary
The provided are a digital currency payment method and apparatus, and relates to the field of computer technology. A specific implementation of the method includes: determining, by a payment device, transaction information of a current digital currency transaction based on an instruction sent by a collection device; invoking the transaction information through a local security chip, and sending the transaction information to the collection device for verification, where the transaction information includes a digital currency or identification information, and the identification information is used for identifying a wallet account or digital currency of the payment device; and updating, by the payment device, a digital currency balance after determining that the transaction information passes the verification.