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Authentic Attributes with Fine-Grained Anonymity Protection

机译：具有细粒度匿名保护的真实属性

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摘要

Collecting accurate profile information and protecting an individual's privacy are ordinarily viewed as being at odds. This paper presents mechanisms that protect individual privacy while presenting accurate-indeed authenticated-profile information to servers and merchants. In particular, we give a pseudonym registration scheme and system that enforces unique user registration while separating trust required of registrars, issuers, and validators. This scheme enables the issuance of global unique pseudonyms (GUPs) and attributes enabling practical applications such as authentication of accurate attributes and enforcement of 'one-to-a-customer' properties. We also present a scheme resilient to even pseudonymous profiling yet preserving the ability of merchants to authenticate the accuracy of information.

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