G.Vigna加密跟踪改进方法

An Improved Method of Cryptographic Trace Proposed by G.Vigna

G.Vigna提出的加密跟踪方法是一种比较有代表性的保护Mobile Agent不受恶意主机或其他Agent写攻击的软件方法。该文针对G.Vigna加密跟踪方法的不足提出一种改进方法,使Mobile Agent的检测变得及时、主动,减少存储量和消息数,并使检测的比较结果直接化。

The Cryptographic Trace proposed by G.Vigna is a representative method protecting mobile agent from write attack. This thesis gives an improved method, to offset the inadequacies of this method. This method makes the check immediately and initiatively.At the same time, the large storage of trace and the messages required are reduced. And what's more, the exact difference between the compared states can be obtained, which is not available in cryptographic trace.