云计算环境下的安全外包计算研究

项目名称： 云计算环境下的安全外包计算研究

项目编号： No.61202466

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 计算机科学学科

项目作者： 徐玲玲

作者单位： 华南理工大学

项目金额： 23万元

中文摘要： 云计算是一种可以更有效地利用计算资源为用户提供各种数据服务的新型计算模式，外包计算作为云计算的一项重要应用服务，能够使得计算资源十分有限的用户将复杂的函数计算外包给云服务器完成，并能确信计算输出的正确性和输入输出的隐私性。而由于目前云计算发展的不完善及各种安全因素影响，使得外包计算正面临着安全性和实用性的严峻挑战，因此本课题将针对外包计算中的多个问题展开深入研究，具体包括：(1) 构造公钥模型下单输入函数的外包计算，增强该类外包计算的实用性；(2) 设计外包多方计算，使其抗击相互勾结的恶意参与方，并研究单输入函数外包计算和外包多方计算之间的构造关系；(3) 考虑外包计算的增强安全模型，即，更强的用户隐私性和服务器安全性，以适用于安全要求更高的云计算环境。本项目的研究将解决上述云计算环境下外包计算中的多个重要问题，从而为用户提供可靠的云服务并促进云计算的推广和发展。

中文关键词： 云计算；外包计算；安全多方协议；；

英文摘要： Cloud computing is a new computing mode which could provide kinds of data service based on its computational resources. As an important application of cloud computing, outsourced computation could enable users with narrow computing power outsource complex function calculations to cloud servers, and could guarantee the correctness of outputs and privacy of both inputs and outputs. Due to the defects of cloud computing and security factors, outsourced computation is facing great challenges like security and practicability. We will study the secure outsourced computation in cloud computing, exactly focusing on the following aspects: (1) constructing outsourced computation of single input function in the public key model, and improving the practicality; (2) designing outsourced multi-party computation to resist malicious colluding parties, and studying the construction relations between the outsourced computation of single input functions and multi-party computation; (3) considering stronger security model including stronger user privacy and server security. This project will devote to solving main problems of outsourced computation in cloud computing, thus can provide reliable service for users and promote the development of cloud computing eventually.

英文关键词： cloud computing；outsourced computation；secure multi-party computation protocol；；