发明名称 |
METHOD OF UPDATING AN AUTHENTICATION ALGORITHM IN A COMPUTER SYSTEM |
摘要 |
The invention relates to a method of updating an authentication algorithm in at least one data processing device (CARD, SERV) which can store a subscriber identity (IMSI1) which is associated with an authentication algorithm (Algo1) in a memory element of said device (CARD, SERV). The inventive method comprises the following steps, namely: a step whereby a second inactive (Algo2) authentication algorithm is pre-stored in a memory element of the device and a step for switching from the first algorithm (Algo1) to the second algorithm (Algo2) which can inhibit the first algorithm (Algo1) and activate the second (Algo2). |
申请公布号 |
WO03077586(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
WO2003IB00868 |
申请日期 |
2003.03.11 |
申请人 |
SCLUMBERGER SYSTEMES;SCHLUMBERGER MALCO, INC.;BEAUDOU, PATRICE;DUBOIS, CHRISTOPHE |
发明人 |
BEAUDOU, PATRICE;DUBOIS, CHRISTOPHE |
分类号 |
G06F21/24;G06K19/10;H04L9/14;H04L9/32;H04M1/675;H04W12/06 |
主分类号 |
G06F21/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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