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    • 2. 发明申请
    • Encrypted In-Memory Column-Store
    • 加密的内存列存储
    • US20150149427A1
    • 2015-05-28
    • US14088051
    • 2013-11-22
    • FLORIAN KERSCHBAUMMARTIN HAERTERICHMATHIAS KOHLERISABELLE HANGANDREAS SCHAADAXEL SCHROEPFERWALTER TIGHZERTPATRICK GROFIG
    • FLORIAN KERSCHBAUMMARTIN HAERTERICHMATHIAS KOHLERISABELLE HANGANDREAS SCHAADAXEL SCHROEPFERWALTER TIGHZERTPATRICK GROFIG
    • G06F17/30
    • G06F17/30864G06F21/6227
    • Embodiments relate to processing encrypted data, and in particular to identifying an appropriate layer of encryption useful for processing a query. Such identification (also known as the onion selection problem) is achieved utilizing an adjustable onion encryption procedure. Based upon defined requirements of policy configuration, alternative resolution, and conflict resolution, the adjustable onion encryption procedure entails translating a query comprising an expression in a database language (e.g. SQL) into an equivalent query on encrypted data. The onion may be configured in almost arbitrary ways directing the onion selection. An execution function introduces an execution split to allow local (e.g. client-side) query fulfillment that may otherwise not be possible in a secure manner on the server-side. A searchable encryption function may also be employed, and embodiments accommodate aggregation via homomorphic encryption. Embodiments may be implemented as an in-memory column store database system.
    • 实施例涉及处理加密数据,特别是涉及识别适用于处理查询的适当加密层。 利用可调节的洋葱加密程序实现了这种识别(也称为洋葱选择问题)。 根据策略配置,替代解决方案和冲突解决的定义要求,可调节洋葱加密过程需要将包含数据库语言(例如SQL)中的表达式的查询转换为对加密数据的等效查询。 洋葱可以以几乎任意方式配置,以指导洋葱选择。 执行功能引入执行分割以允许在服务器端以安全的方式可能不可能的本地(例如客户端)查询执行。 还可以采用可搜索的加密功能,并且实施例通过同态加密适应聚合。 实施例可以被实现为内存中列存储数据库系统。