关键词: 移动代理，单向函数，Merkle树，计算复杂度

Abstract: Mobile agents are software programs which are believed to play an important role in future ccommerce systams,but the security problems have been an obstacle for mobile agents to be practical. Using a special oncway function and Merkle trees,a route protection of mobile agents was presented in this paper which not only owns better security and convenience but also reduces the computational cost.

Key words: Mobile agents, One-way functions, Merke trees, Computational cost