ing anonymous. Such signatures are a powerful tool
to realize privacy-preserving data collections, where e.g., sensors, wearables or vehicles can upload authenticated measurements into a data lake.
The anonymity protects the user’s privacy yet enables basic data processing of the uploaded unlinkable information. For many applications, full
anonymity is often neither desired nor useful though, and selected parts
of the data must eventually be correlated after being uploaded. Current
solutions of group signatures do not provide such functionality in a satisfactory way: they either rely on a trusted party to perform opening or
linking of signatures
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OSPF路由协议中路径类型（O:区域内路径，IA:区域间路径，E1:E1外部路径，E2:E2外部路径）优先级排序正确的是（A） A.O>IA>E1>E2 B.IA>O>E2>E1 C.E1>E2>O>IA …
