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发明名称
A METHOD, SYSTEM AND DEVICE FOR ACHIEVING MULTI-PARTY COMMUNICATION SECURITY
摘要
申请公布号
EP2056521(A4)
申请公布日期
2010.01.13
申请号
EP20070721262
申请日期
2007.05.24
申请人
HUAWEI TECHNOLOGIES CO., LTD.
发明人
LIU, YA
分类号
H04L9/08;H04L9/32
主分类号
H04L9/08
代理机构
代理人
主权项
地址
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