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公开(公告)号：EP2490470B1
公开(公告)日：2019-10-09
申请号：EP12155532.0
申请日：2012-02-15
发明人： Alexander, Danny , Wix, Amit
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2.发明公开Correcting deciphering mis-synchronization in a mobile communication terminal 审中-公开在einem mobilenKommunikationsendgerät的Korrektur vonEntschlüsselungsfehlsynchronisation
公开(公告)号：EP2827554A1
公开(公告)日：2015-01-21
申请号：EP14177735.9
申请日：2014-07-18
发明人： Wix, Amit , Korenfeld, Boris , Agmon, Morag
CPC分类号： H04L9/14 , H04L1/0061 , H04L9/12 , H04L63/0457 , H04L65/604 , H04L2209/30 , H04L2209/80 , H04W12/02 , H04W12/08 , H04W88/02
摘要： A method includes, in a mobile communication terminal, receiving a signal, which carries media content that has been encrypted after being compressed in accordance with a compression protocol having a plurality of predefined configurations. Each configuration specifies a respective compression mode of the compression protocol. The received signal is decrypted, and one or more parameters that define a configuration of the compression protocol that was used for compressing the media content are determined from the decrypted signal. An absence of match is detected when the determined one or more parameters do not match any of the plurality of predetermined configurations of the compression protocol. An error in decrypting the received signal is identified based on detecting the absence of a match.
摘要翻译： 一种方法包括在移动通信终端中接收信号，该信号携带根据具有多个预定义配置的压缩协议被压缩之后已被加密的媒体内容。 每个配置指定压缩协议的相应压缩模式。 解密所接收的信号，根据解密的信号确定定义用于压缩媒体内容的压缩协议的配置的一个或多个参数。 当确定的一个或多个参数与压缩协议的多个预定配置中的任一个不匹配时，检测到不存在匹配。 基于检测到不存在匹配来识别解密接收信号的错误。
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3.发明公开Recovery from decryption errors in a sequence of communication packets 审中-公开Wiederherstellung nachVerschlüsselungsfehlern在einer Sequenz aus Kommunikationspaketen
公开(公告)号：EP2490470A1
公开(公告)日：2012-08-22
申请号：EP12155532.0
申请日：2012-02-15
发明人： Alexander, Danny , Wix, Amit
IPC分类号： H04W12/02
CPC分类号： H04L63/0428 , H04K1/00 , H04L9/12 , H04W12/0017 , H04W12/02 , H04W12/08
摘要： A method in a receiver includes receiving from a transmitter a sequence of communication packets, which carry data encrypted with an encryption scheme. The encryption scheme depends on a counter value that is incremented independently by each of the transmitter and the receiver. Attempts are made to decrypt the data of a received packet multiple times using different, respective counter values, to produce multiple respective decrypted outputs. A decrypted output in which the data has been decrypted correctly is identified, the counter value is corrected, and the data of the received packet is recovered from the identified decrypted output.
摘要翻译： 接收机中的方法包括从发射机接收携带随加密方案加密的数据的通信分组序列。 加密方案取决于由发射机和接收机中的每一个独立增加的计数器值。 尝试使用不同的相应计数器值多次解密接收的分组的数据，以产生多个相应的解密输出。 识别数据被正确解密的解密输出，校正计数器值，并从所识别的解密输出中恢复接收到的数据包的数据。
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