公开(公告)号：US5615267A

公开(公告)日：1997-03-25

申请号：US503398

申请日：1995-07-17

申请人： Jason Y. Lin ,  Seshadri Mohan ,  Howard Sherry ,  Nelson R. Sollenberger

发明人： Jason Y. Lin ,  Seshadri Mohan ,  Howard Sherry ,  Nelson R. Sollenberger

IPC分类号： H04L9/32 ,  H04W12/06 ,  H04L9/00

CPC分类号： H04W12/06

摘要： A method for adaptively switching between the WS and S authentication schemes is based on the customer's usage. A first preferred embodiment provides a 2n-1 state automaton (where n>1), which switches from the WS Scheme to the S Scheme when the automaton passes from state n-1 to state n, and vice versa. At each new registration, the automaton increases one state if more than 1 call was made (i.e., incoming or outgoing) during the cycle; decreases one state if no calls were made during the cycle; and remains the same if 1 call was made during the cycle. The value of n is preferably determined by the PSP based on customer usage. A second preferred embodiment begins each new cycle with the WS Scheme, and will switch to the S Scheme if a call is made during the registration.

摘要翻译： 在WS和S认证方案之间进行自适应切换的方法是基于客户的使用。 第一优选实施例提供了一种2n-1状态自动机（其中n> 1），当自动机从状态n-1转换到状态n时，它从WS方案切换到S方案，反之亦然。 在每次新注册时，如果在循环期间进行了多于一次的呼叫（即进入或离开），则自动机增加一个状态; 如果在循环中没有进行呼叫，则减少一个状态; 并且在循环期间进行1次呼叫时保持不变。 n的值优选基于顾客使用的PSP来确定。 第二优选实施例用WS方案开始每个新循环，并且如果在注册期间进行呼叫，则将切换到S Scheme。