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1. 发明授权

US08107622B2 System and method to preclude message modification in data authentication systems through efficent use of feedback in cryptographic functions 有权
标题翻译：通过在加密功能中有效地使用反馈来防止数据认证系统中的消息修改的系统和方法
公开(公告)号：US08107622B2
公开(公告)日：2012-01-31
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： H04L9/28 , H04L9/32 , G06F17/10
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 is an object of the present invention. The system generates a hash value tag comprising a deterministic random number string which uniquely identifies the incoming string. The system comprises at least first and second register arrays, at least one 1-way functionality in at least pseudo-randomizing function; 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：本发明的一个目的是可操作地散列消息字的传入串的数据散列系统。该系统生成包含确定性随机数字串的哈希值标签，其唯一地标识传入的字符串。该系统至少包括第一和第二寄存器阵列，至少一个模拟随机化功能中的至少一个单向功能; 以及一组至少第一和第二正交反馈字流发生器，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分别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，其与输入中的当前字组合串，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。

2. 发明申请

US20090304179A1 SYSTEM AND METHOD TO PRECLUDE MESSAGE MODIFICATION IN DATA AUTHENTICATION SYSTEMS THROUGH EFFICENT USE OF FEEDBACK IN CRYPTOGRAPHIC FUNCTIONS 有权
标题翻译：通过有效地使用反馈功能在数据认证系统中预防信息修改的系统和方法
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。

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