Integrity protection of renewable data
可更新数据的数据完整性保护方法

Data collection is one kind of important applications of mobile Agent and gets involved in many areas of mobile Agent application system. Because the mobile agents could get the attacks from malicious hosts, how to protect the integrity of the collected data is a crucial issue. In this paper, a protocol to protect the integrity of the collected data, when mobile Agent was roaming through a set of potentially malicious hosts, was proposed based on the analysis of security properties for data collection of mobile Agent. The protocol can assure the integrity verification of the collected data regardless of the collecting order of each data segment. So the set of hosts can be visited randomly and can update their own data. The protocol is suitable for application system with dynamically changing data.