TY  - EJOU
AU  - Zhao, Shoucai 
AU  - Cao, Lifeng 
AU  - Li, Jinhui 
AU  - Wan, Jiling 
AU  - Bai, Jinlong 

TI  - Cross-Domain Data Traceability Mechanism Based on Blockchain
T2  - Computers, Materials \& Continua

PY  - 2023
VL  - 76
IS  - 2
SN  - 1546-2226

AB  - With the application and development of blockchain technology, many problems faced by blockchain traceability are gradually exposed. Such as cross-chain information collaboration, data separation and storage, multi-system, multi-security domain collaboration, etc. To solve these problems, it is proposed to construct trust domains based on federated chains. The public chain is used as the authorization chain to build a cross-domain data traceability mechanism applicable to multi-domain collaboration. First, the architecture of the blockchain cross-domain model is designed. Combined with the data access strategy and the decision mechanism, the open and transparent judgment of cross-domain permission and cross-domain identity authentication is realized. And the public chain consensus node election mechanism is realized based on PageRank. Then, according to the characteristics of a nonsingle chain structure in the process of data flow, a data retrieval mechanism based on a Bloom filter is designed, and the cross-domain traceability algorithm is given. Finally, the safety and effectiveness of the traceability mechanism are verified by security evaluation and performance analysis.
KW  - Cross-domain; data traceability; blockchain; bloom filter

DO  - 10.32604/cmc.2023.040776