发明名称 MULTIPLE MODULE ENCRYPTION METHOD
摘要 When an encrypting-decrypting module is being used, there are various methods for determining the key or keys used by said module by analysing the module input or output data. To remedy this inconvenience, the inventive multiple module method is characterised in that the downstream module starts its encrypting-decrypting operations as soon as part of the results of the upstream module is available.
申请公布号 HK1048407(A1) 申请公布日期 2009.09.25
申请号 HK20030100573 申请日期 2003.01.23
申请人 NAGRACARD S.A. 发明人 MARCO SASSELLI;CHRISTOPHE NICOLAS;MICHAEL JOHN HILL
分类号 G09C1/00;H04L;H04L9/00;H04L9/14 主分类号 G09C1/00
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