发明名称 METHOD AND APPARATUS FOR SYNCHRONIZING GENERATION OF SEPARATE, FREE RUNNING, TIME DEPENDENT EQUIPMENT
摘要 <p>In a system and method for comparing and matching nonpredictable codes generated by separate computers on the basis of dynamic variables defined according to time, an apparatus and method for synchronizing the time definition of the dynamic variables by (a) calculating a first non-predictable code according to a secret predetermined algorithm, the algorithm generating the first non-predictable code on the basis of a first dynamic variable and a unique static variable; (b) automatically defining the first dynamic according to a first interval in which the static variable is input into the algorithm, the first interval of time having a predetermined duration; (c) calculating two or more second nonpredictable codes according to the predetermined algorithm, the algorithm generating the second non-predictable codes on the basis of the two or more second dynamic variables and the unique static variable, (d) automatically defining the two or more second dynamic variables according to two or more cells of a second interval of time in which the static variable is input into the algorithm of the second computer, the second interval of time comprising a central cell of time having a predetermined duration and one or more cells of time bordering the central cell of time, each bordering cell of time having a predetermined duration, (e) comparing the first non-predictable code with the second nonpredictable codes to determine a match, and (f) automatically synchronizing the clock mechanisms which define the first and second dynamic variables upon comparison and matching of the first nonpredictable code with one of the second non-predictable codes.</p>
申请公布号 CA1270957(A) 申请公布日期 1990.06.26
申请号 CA19860523998 申请日期 1986.11.27
申请人 SECURITY DYNAMICS TECHNOLOGIES, INC. 发明人 WEISS, KENNETH P.
分类号 G06F7/58;G07F7/10;(IPC1-7):G07F7/10 主分类号 G06F7/58
代理机构 代理人
主权项
地址