Signatures of Reputation
Signatures of Reputation
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声誉签名
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
D. Song
中科院分区：
文献类型：
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作者：
J. Bethencourt;E. Shi;D. Song
信誉系统已成为一个越来越重要的工具，突出质量信息和过滤垃圾邮件在网上论坛。然而，用户的声誉依赖于他们的活动历史，似乎排除了任何匿名的可能性。我们表明，有用的声誉信息，事实上，可以共存的强大的隐私保证。我们引入并形式化了一个新的密码原语，我们称之为签名的声誉，它支持单调措施的声誉在一个完全匿名的设置。在我们的系统中，用户可以通过投票来表达对他人的信任，收集投票来建立自己的声誉，并将其声誉的证明附加到她发布的任何数据中，同时保持其行为的不可链接性。
Reputation systems have become an increasingly important tool for highlighting quality information and filtering spam within online forums. However, the dependence of a user’s reputation on their history of activities seems to preclude any possibility of anonymity. We show that useful reputation information can, in fact, coexist with strong privacy guarantees. We introduce and formalize a novel cryptographic primitive we call signatures of reputation which supports monotonic measures of reputation in a completely anonymous setting. In our system, a user can express trust in others by voting for them, collect votes to build up her own reputation, and attach a proof of her reputation to any data she publishes, all while maintaining the unlinkability of her actions.