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 PL353795(A1) 申请公布日期 2003.12.01
申请号 PL20000353795 申请日期 2000.08.24
申请人 NAGRACARD SA 发明人 SASSELLI MARCO;NICOLAS CHRISTOPHE;HILL MICHAEL JOHN
分类号 G09C1/00;H04L9/00;H04L9/14 主分类号 G09C1/00
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