基于PayWord的自更新Hash链微支付协议

针对基于Hash链的小额支付协议PayWord在支付效率和安全性方面的不足，以及传统Hash链的应用存在长度限制的问题，提出一种新的适用于移动电子商务认证与微支付的协议，包括“多面额”Hash链思想、可自更新的Hash链机制和基于令牌的快速认证方法。分析结果证明新协议可实现安全性、公平性和效率的统一，适用于移动用户与同一网络信息服务提供商进行频繁小额交易的移动商务环境。

Self-renewal Hash Chains Micro-payment Protocol Based on PayWord

In accordance with the shortcomings in efficiency and security of PayWord,which is a mobile micro-payment protocol based on conventional Hash chains that has a length limit,this paper brings up a new protocol suitable for mobile commerce certification and micro-payment,involving the idea of "multiple denominations" Hash chains,a self-renewal Hash chains scheme and a token-based authentication method. Analysis results show that the protocol has better security,efficiency and fairness,and it is fit for freque...