发明名称 |
SYSTEM AND METHOD FOR CHANGING THE KEY OR PASSWORD IN A SECURE DISTRIBUTED COMMUNICATIONS NETWORK |
摘要 |
<p>A robust and secure password (or key) change method between a user and an authentication server in a distributed communication network is disclosed. The protocol requires the exchange of only two messages between the user desiring the key change and the server, the user's request including, at least partly encrypted, an identification of the sending user, old and new keys, and two nonces, at least one including a time indication. The authentication server's response includes a possibly encrypted accept/reject indication and the regularly encrypted request from the user.</p> |
申请公布号 |
EP0720796(B1) |
申请公布日期 |
1997.07.16 |
申请号 |
EP19930920773 |
申请日期 |
1993.09.20 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HAUSER, RALF;JANSON, PHILIPPE;MOLVA, REFIK;TSUDIK, GENE;VAN HERREWEGHEN, ELSIE |
分类号 |
G06F21/20;G06F1/00;G06F15/00;G09C1/00;H04L9/08;H04L9/32;(IPC1-7):H04L9/08 |
主分类号 |
G06F21/20 |
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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