Digital asset secure transaction system and method based on block chain

Through the integration of hierarchical architecture and innovative technologies, the privacy protection and cross-chain efficiency problems in the blockchain digital asset trading system are solved, efficient and secure transaction processing is achieved, and millisecond-level confirmation and automated rollback of high-frequency small transactions are supported.

CN120494970AActive Publication Date: 2025-08-15MINZU UNIVERSITY OF CHINA
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Patent Information

Application Number
CN202510580564.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2025-08-15
Estimated Expiration
2045-05-07

AI Technical Summary

Technical Problem

The existing blockchain digital asset trading system has imbalance in terms of privacy protection and cross-chain efficiency, limited throughput, insufficient reliability of atomic exchange, and difficult to support the demand for high-frequency trading scenarios.

Method used

The hierarchical architecture design is adopted, including smart contract execution layer, distributed ledger storage layer and cross-chain interaction layer, combined with improved practical Byzantine fault tolerance consensus algorithm, dynamic sharding strategy, zero-knowledge proof, ring signature technology and verifiable delay function to achieve multi-dimensional performance improvement and security guarantee.

Benefits of technology

Significantly improve transaction throughput, achieve fine-grained privacy protection, increase cross-chain transaction confirmation speed to milliseconds, reduce computing resource consumption, reduce Gas costs, and support automated rollback and reliability of high-frequency small transactions.

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Abstract

The invention discloses a digital asset secure transaction system and method based on a block chain, and belongs to the cross field of block chain technology and financial science and technology. The system adopts a layered architecture design and comprises an intelligent contract execution layer, a distributed account book storage layer and a cross-chain interaction layer. The transaction method comprises the following steps: generating a digital identity certificate based on asymmetric encryption, and realizing privacy protection through zero-knowledge proof; a secure transaction channel is constructed by adopting a multi-signature mechanism, and sensitive data processing is performed in combination with a trusted execution environment; and designing a dynamic fragmentation strategy to optimize the transaction throughput, and establishing an on-chain and off-chain collaborative verification mechanism. The innovation point is that a double-layer verification model combining a verifiable delay function and a threshold signature is provided, and millisecond-level confirmation is realized while the transaction irreversibility is ensured. The system supports multi-chain asset atomic exchange, and interoperability of different block chain networks is realized through a heterogeneous cross-chain gateway. The scheme has the characteristics of high transaction confirmation speed, high privacy protection level and high system expansibility.
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