公开(公告)号：US20090304179A1

公开(公告)日：2009-12-10

申请号：US12439556

申请日：2007-09-06

申请人： Carmi David Gressel ,  Gregory Van Bard ,  Orr David Dunkelman ,  Avi Hecht ,  Ran Granot

发明人： Carmi David Gressel ,  Gregory Van Bard ,  Orr David Dunkelman ,  Avi Hecht ,  Ran Granot

IPC分类号： H04L9/20

CPC分类号： H04L9/0643 ,  H04L9/0662 ,  H04L2209/04 ,  H04L2209/08 ,  H04L2209/125

摘要： A data hashing system operative to hash an incoming string of message words, thereby to generate a hash value tag comprising a deterministic random number string which uniquely identifies the incoming string, the system comprising at least first and second register arrays, at least one 1-way at least pseudo-randomizing functionality; and a set of at least first and second orthogonal feedback word stream generators operative to generate a set of at least first and second orthogonal feedback streams of message words respectively, including applying respective permutations to the incoming string, wherein the first and second feedback streams are combined into the first and second register arrays respectively, the at least pseudo-randomizing functionality accepts input from the register arrays and generates at least pseudo-random output which, in combination with a present word in the incoming string, is provided to the stream generators, and the first feedback stream is a first function of a present word in the incoming stream and the second feedback stream is a second function of a present and previous words, in the incoming stream.

摘要翻译： 一种数据散列系统，用于对输入的消息字串进行散列，由此产生一个散列值标签，其包括唯一地标识输入字符串的确定性随机数字串，该系统至少包括第一和第二寄存器阵列，至少一个1- 至少是伪随机化功能; 以及一组至少第一和第二正交反馈字流生成器，用于分别产生消息字的至少第一和第二正交反馈流的集合，包括对输入字符串应用相应置换，其中第一和第二反馈流是 组合到第一和第二寄存器阵列中，所述至少伪随机化功能接受来自寄存器阵列的输入，并且至少产生伪随机输出，其结合传入串中的当前字被提供给流生成器 并且第一反馈流是输入流中的当前单词的第一函数，并且第二反馈流是输入流中当前和先前单词的第二函数。