发明名称 SOFTWARE DATA PROTECTION MECHANISM.
摘要 The mechanism includes at least one element for taking an input binary value and generating a unique key value as well as performing the reverse operation of taking a key value and generating an input binary value. The mechanism includes a scrambler which includes an array having a number of multibit container locations for storing a unique sequence of random numbers. The scrambler forms another binary value by rearranging the bits of the input binary value as a function of the random number values in addition to altering the states of such bits as a function of the random number values and the numeric bit position values of sources of the input binary bits. The resulting binary value is applied to an alphanumeric encoder which converts the binary value into a series of alphanumeric characters containing a valid key value.
申请公布号 EP0614147(A3) 申请公布日期 1995.09.27
申请号 EP19930118579 申请日期 1993.11.18
申请人 BULL HN INFORMATION SYSTEMS INC. 发明人 HIRSCH, THOMAS S.
分类号 G06F12/14;H04L9/00 主分类号 G06F12/14
代理机构 代理人
主权项
地址