III: Small: Ensuring Integrity and Authenticity of Outsourced Databases

由于与管理数据相关的复杂性和成本，许多组织正在寻求外包其数据管理服务。特别是近年来，云计算获得了极大的兴趣。虽然数据外包有很大的希望，但它引起了一些安全和隐私问题。特别是，由于客户端对服务器上运行的软件和硬件几乎没有或没有直接控制，因此不愿意盲目信任服务器。服务器可能会有意或无意地牺牲客户端的服务质量。此外，人们还担心服务的保真度。数据库具有精确的操作语义，外包数据库必须保留这些语义。迫切需要发展认证机制，使数据库能够在外包地点操作（查询和更新），同时向数据所有者保证数据库的交易一致性，本项目旨在在动态外包数据库的认证方面取得重大进展。该项目将开发解决方案，使数据所有者和授权客户能够确保外包数据库准确地代表与所有者或客户执行的有效交易相对应的状态。将开发全面和有效的解决方案，最大限度地减少数据所有者的负担，以及外包网站为证明正确执行而产生的开销。欲了解更多信息，请访问项目网站http://www.cs.purdue.edu/homes/sunil/AuthenticDB

Due to the complexity and cost associated with managing data, many organizations are looking towards outsourcing their data management services. In recent years especially, Cloud Computing has gained significant interest. Although data outsourcing holds great promise, it raises a number of security and privacy concerns. In particular, since the clients have little or no direct control over the software and hardware that is running at the servers, there is a reluctance to blindly trust the server. A server may sacrifice the quality of service for a client either intentionally or inadvertently. In addition, there is a concern about the fidelity of the service. Databases have precise semantics of operation which must be preserved by the outsourced database. There is a critical need to develop authentication mechanisms that allow a database to be operated (for querying and updates) at an outsourcing site while providing guarantees to the data owner regarding transactional consistency of the database.This project aims to make significant advances in the authentication of dynamic outsourced databases. The project will develop solutions that enable a data owner and authorized clients to ensure that the outsourced database represents exactly the state that corresponds to valid transactions that have been executed by the owner or clients. Comprehensive and efficient solutions that minimize the burden on the data owner, and the overhead on the outsourcing site for proving correct execution will be developed. For further information, see the project website http://www.cs.purdue.edu/homes/sunil/AuthenticDB