基于事件同步及异步的动态口令身份认证技术研究

Dynamic Password Authentication Based on Event-synchronous and Challenge/Response Technology

动态口令身份认证中有两种不常应用的技术———事件同步技术和异步口令技术,它们避免了时间同步令牌中存在的缺点,事件同步技术通过次数进行同步,异步口令技术避免了口令失步的问题。给出了两种技术混合使用的一种认证模型,并比较了三种技术的优缺点。

Nowadays there are two unusual technologies of dynamic password authentication： Event-synchronous and Challenge/Response. They can avoid the shortcomings of time-dependent tokens. Event-synchronous rely on the input event but an internal clock. The usage of asynchronous tokens is always consistent. It also gives an authentication model with the two technologies and compares three dynamic password styles.