公开(公告)号：US5608800A

公开(公告)日：1997-03-04

申请号：US318700

申请日：1994-10-11

申请人： Gerhard Hoffmann ,  Klaus Lukas ,  Stephan Lechner ,  Ferdinand Steiner ,  Helmut Baumgartner ,  Ekkehard Lohmann ,  Matthias Leclerc

发明人： Gerhard Hoffmann ,  Klaus Lukas ,  Stephan Lechner ,  Ferdinand Steiner ,  Helmut Baumgartner ,  Ekkehard Lohmann ,  Matthias Leclerc

IPC分类号： H04L9/32 ,  H04L9/08 ,  H04K1/00 ,  H04L9/14

CPC分类号： H04L9/3247 ,  H04L2209/34

摘要： The process is intended to establish whether the data transmitted by the transmitter (SE) to the receiver (EM) have been tapped and spuriously reintroduced at a later point in time and/or have been inadmissibly altered. For this purpose, the signature (S) assigned to the useful data (D) is enciphered symmetrically, using a combination of coupling data (K), characterizing the coupling between transmitter and receiver, and random data (Z), generated by a random generator. The coupling data are transmitted in plain text, the random data are enciphered. On the receiver side it can be established whether the transmitted message has been tapped and reintroduced at a later point in time if the coupling data are inadmissible. An alteration of the transmitted message can be established from ascertaining that the key used for enciphering the signature, obtained from the combination of coupling data and random data with the aid of a one-way function, does not correspond to the key obtained during deciphering at the receiver and consequently the deciphering of the enciphered signature leads to an incorrect result. The incorrect signature is detected during verification of the signature.

摘要翻译： PCT No.PCT / DE93 / 00246 Sec。 371日期：1994年10月11日 102（e）日期1994年10月11日PCT 1993年3月17日PCT公布。 出版物WO93 / 21711 日期1993年10月28日该过程旨在确定发射机（SE）向接收机（EM）发送的数据是否已经被轻敲并在稍后的时间点被虚假地重新引入和/或被不允许地改变。 为此，分配给有用数据（D）的签名（S）对称地使用表征发送器和接收器之间的耦合的耦合数据（K）和随机数据（Z）的组合被加密，由随机数 发电机。 耦合数据以明文形式发送，随机数据被加密。 在接收机侧，如果耦合数据不可接受，则可以建立传送的消息是否已经在随后的时间点被轻敲并重新引入。 可以从确定用于通过单向功能的耦合数据和随机数据的组合获得的用于加密签名的密钥的确定不对应于在解密期间获得的密钥而被发送的消息的改变 接收器和因此的加密签名的解密导致不正确的结果。 在验证签名期间检测到不正确的签名。

公开(公告)号：US20090150448A1

公开(公告)日：2009-06-11

申请号：US11951458

申请日：2007-12-06

申请人： Stephan Lechner

发明人： Stephan Lechner

IPC分类号： G06F7/04 ,  G06F17/30

CPC分类号： G06Q10/107 ,  G06F16/9535

摘要： Webpages to which different web addresses are assigned and which are stored in the form of web data on different computer systems that are connected to one another via a communications protocol, preferably the Hypertext Transfer Protocol. First, at least the layout, content and/or the graphical elements of a reference webpage are determined in the form of reference data and then a plurality of different webpages are called up by a search and analysis routine and the sets of web data associated with the called-up webpages is compared with the reference data. The webpages that are similar to the reference webpage are identified as a function of the degree of agreement between the web data and the reference data.

摘要翻译： 分配不同网址的网页，以及通过通信协议（优选为超文本传输​​协议）彼此连接的不同计算机系统上的web数据形式存储的网页。 首先，以参考数据的形式至少确定参考网页的布局，内容和/或图形元素，然后通过搜索和分析例程调用多个不同的网页，并且与 将调用的网页与参考数据进行比较。 与参考网页相似的网页被确定为Web数据和参考数据之间的一致程度的函数。