A blockchain-based cross-domain collaborative traceability system and method

Abstract

The invention discloses a blockchain-based cross-domain collaborative traceability system and method, and relates to the technical field of network security. The present invention introduces the block chain technology, through the advantages of the block chain, it provides a trust basis for the cooperation of each autonomous domain in the traceability system, and the transactions generated in the traceability process are packaged, verified and broadcast by the super nodes in the block chain To all nodes, thus enabling data information to be stored openly and transparently on all nodes, solving the trust problem caused by competition, enabling collaboration and credibility between autonomous domains, and greatly improving the efficiency of collaborative traceability. At the same time, a special tag is designed to block the aggregation of data flow. By integrating the tag-based high-precision traceability strategy with the blockchain, the traceability efficiency and traceability accuracy are improved. At the same time, different cryptography techniques are introduced for different data types, instead of all using the same method, so that the privacy and security of data can be flexibly and effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a blockchain-based cross-domain collaborative traceability system and method. Background technique [0002] The stateless nature of Internet operation has led to huge hidden dangers in the network security of Internet users, and because attackers often use false IP addresses to hide their true identities, it becomes very difficult to defend against attacks and track cybercrimes. IP traceability, as a technology of network data source identification and transmission path reconstruction attached to the existing network architecture, can effectively solve such problems. [0003] Whether IP traceability is for network attack or network management, a large number of Autonomous Systems (AS) or multiple Internet Service Providers (Internet Service Providers, ISPs) are required to cooperate to complete IP traceability. Due to the autonomy of the ISP, it is manifested in the pro...

AI Technical Summary

Problems solved by technology

The aggregation phenomenon of this data flow will cause the tags in the data flow to be covered, which will lead to false positives of traceability and reduce the accuracy of traceability.

Finally, because the existing IP traceability system is an open system oriented to the entire network, which satisfies incremental deployment and supports random joining and exiting of users, in this environment, it is inevitable that there will be malicious users spying on private information and Profit from this, there is a risk of privacy leakage

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