首页>
外国专利>
Privacy-preserving aggregation of time-series data
Privacy-preserving aggregation of time-series data
展开▼
机译:时序数据的隐私保护聚合
展开▼
页面导航
摘要
著录项
相似文献
摘要
A private stream aggregation (PSA) system contributes a user's data to a data aggregator without compromising the user's privacy. The system can begin by determining (302) a private key for a local user in a set of users, wherein the sum of the private keys associated with the set of users and the data aggregator is equal to zero. The system also selects a set of data values associated with the local user. Then, the system encrypts individual data values in the set based in part on the private key to produce a set of encrypted data values, thereby allowing the data aggregator to decrypt an aggregate value across the set of users without decrypting individual data values associated with the set of users, and without interacting with the set of users while decrypting the aggregate value. The system also sends (308) the set of encrypted data values to the data aggregator.
展开▼