Cloud computing enable companies to cut costs on their network services.However,there are also problems that make the companies worry.clients of cloud computing services currently have no ways of verifying the confidentiality and integrity of their data and computation.To address those problem,a new trusted cloud computer platform design model is proposed,which introduced the public key encryption mechanism for authentication mechanism based on the Trusted Network Connect and Group of Cartesian product of the encryption algorithm.The safety analysis shows that our encryption algorithm is safety to improve the trusted cloud computing.%云计算能减少公司在网络服务上的投资成本,但同时也存在让公司担忧的问题:云端的用户数据安整性、用户网络连接的可信性、云服务商的保密性等可信问题.提出一种改进的可信云计算机平台设计模型,该模型采用基于可信网络连接的网络接入控制机制,并在该机制中采用群笛卡尔积加密算法的密钥机制来实现vTPM的完整性验证模块.经过安全性分析证明该模型能够提高云服务商对用户接入的可信度.
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