Research on Integrity Check Method of Cloud Storage Multi-Copy Data Based on Multi-Agent

Aimed at the huge number of files in cloud storage and the low audit efficiency of single-node audit mode, this paper proposes a multi-agent-based cloud storage multi-copy data integrity check scheme. The scheme uses a bilinear mapping method to construct the key generation process and a multi-branch authentication tree to perform multi-copy data signature to implement multi-copy authentication, signature, and verification. It also uses a directed acyclic graph (DAG) to represent the task relationship in the workflow, task and resource allocation based on QoS demand preference settings to schedule multiple tasks. Experimental results show that the proposed scheme has obvious advantages over existing schemes in terms of communication, storage overhead, and audit efficiency, with an average audit efficiency improvement of 20 & x0025;.