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Updating of an authentication algorithm in an information system, uses storage of replacement algorithm before first authentication algorithm is inhibited and replacement algorithm activated
Updating of an authentication algorithm in an information system, uses storage of replacement algorithm before first authentication algorithm is inhibited and replacement algorithm activated
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机译:信息系统中认证算法的更新,在禁止第一个认证算法并激活替代算法之前使用替代算法的存储
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摘要
The authentication algorithm operates between a SIM card (CARD) and a server (SERV) which both store a subscriber identifier (IMSI1) associated with an authentication algorithm (Algo1). In a preliminary stage a second inactive authentication algorithm (Algo2) is stored. The first algorithm is then swapped with the second, so that the first algorithm is inhibited and the second activated.
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