SOFTWARE PROTECTION SYSTEM

申请(专利)号： EP19990957101

专利号： EP1086415B1 主分类号： G06F1/00 申请权利人： SCHLUMBERGER

SYSTEMES 公开国代码： EP 优先权国家： FR

申请日： 1999-06-15 公开公告日： 2002-01-30

分类号： G06F1/00

发明设计人： LION, STEPHANIE;

SION, JEROME 申请国代码： EP

优先权： 19980617 FR

9807629

摘 要 附 图：

摘 要：

The invention concerns a software protection system (16) executable on a computerised machine (10) which

consists in associating with the software a memory card (24) capable of being

inserted in a reader (20) connected to the computerised machine. Said software comprises means for storing a public key; means for periodically elaborating a pseudo-random number; means for implementing a first algorithm using the public key on receiving data from the reader, the software execution being

interrupted in response to the comparison of the pseudo-random number with the result supplied by the first algorithm. The card comprises storing means protected by a private key; means for implementing a second algorithm using the private key, on receiving an information transmitted by the computerised machine and means for transmitting to the machine the coded information. 主权项：

A system for protecting software able to be executed on a computer machine (10) of

the type in which

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