对基于Decisional Diffie-Hellmen 假设计算安全的分布式密钥分发方案进行改进，在其基础上利用可验证秘密共享和知识证明，提出一种健壮的计算安全的分布式密钥分发方案，以抵抗主动攻击，从而具有更高的安全性。关键词：分布式密钥分发；计算安全；健壮性；可验证的秘密共享；知识证明Abstract:In this paper, by the combined use of verifiable secret sharing and knowledgeproof,we build a robust and computationally secure Distributed Key Distribution Scheme based onthe assumption of a Decisional Diffie-Hellmen problem.The scheme prevents from the action ofan active adversary.Key Words: distributed key distribution; computationally secure; robust; verifiable secretsharing; knowledge proof