SDCI Data: New - Scalable Authentication of Grid Data Provenance

SDCI 数据：新功能 - 网格数据来源的可扩展身份验证

• 批准号: 0722068
• 负责人: Ashish Gehani
• 金额: $ 84.99万
• 依托单位: SRI International
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0722068&HistoricalAwards=false
• 关键词: SDCI; Data; New; Scalable; Authentication

Large volumes of data are being created, disseminated, and processed on the Grid. To maintain accountability while the data is transformed by multiple parties, a consumer must be able to check its lineage and deem it trustworthy. This project is building filesystem support to transparently generate and certify Grid data provenance, and a corresponding tool to validate it. The system's ability to provide assurances will scale despite the fact that provenance metadata grows exponentially, is generated in multiple, independent administrative domains, and must be verifiably ordered in the absence of certified, global, synchronized timestamps. The approach is trading certification space and verification time, uses out of order validation of certificate chains, and embeds forward-secure temporal witnesses in the metadata. Its deployment will let scientists efficiently query and verify the lineage of data processed in external Grid domains.

在网格上创建，传播和处理大量数据。为了在数据转换多个政党时保持问责制，消费者必须能够检查其血统并认为它值得信赖。该项目是构建文件系统支持，以透明地生成和认证网格数据出处，以及对其进行验证的相应工具。尽管出处元数据呈指数增长，在多个独立的行政域中生成，并且必须在没有经过认证的全球，全球，同步的时间戳。该方法是交易认证空间和验证时间，使用证书链的订单验证，并嵌入元数据中的远期临时证人。它的部署将使科学家有效查询并验证外部网格域中处理的数据的谱系。