英语论文网

y make the access to the cloud computing resource or hope to get the cloud computing service, they should take their full ID, which includes their personal identities or the classes/group. Then the objective environment will have a relative simple way to control their accessing

In order to reach the goal of trusted computing, the users should come from the trusted computing platform, and take the security mechanism on this platform to achieve the privacy and security for themselves. The user has his personal ID and secrete key, such as the USB Key, to get the right to use the TCP. They can use the decryption function to protect their data and other information.

During booting the TC hardware calculates the cryptographic hash for the code present in the boot ROM. This is then written into a temper resistant log. For each new block of code new hash is calculated by the code the code present in boot ROM. This new hash is attached in the end temper resistant log. This process keeps on occurring till the OS is booted completely. After booting, tamper resistant log is used to establish the version of working OS. The TC has a part which is known as certifying

It is helpful for the TC hardware to know via its log what software configuration is running on a machine. TC has the capability to prove that the OS version is working is quite famous. Then OS would be able to confirm that this systems has concise settings. If you trust TC and the OS, then you can be confident that you know the application's configuration. A configuration certificate can be presented to any recipient—the user or the program running on another computer in the cloud computing environment—and the recipient can verify that the certificate is valid and up-to-date, so it can know what the machine's configuration is. This mechanism provides a way to help the participants in the cloud computing systems to build relationship among the ones that have mutual action.

The trusted computing platform's boot sequence is illustrated. The beginning of the boot is the BIOS boot block. In the TPM, the root of trust in integrity reporting is fulfilled. And the reporting could be delivered to the remote machine via the network.

By using the remote attest function, the user in the TCP could to notify their identities and relevant information to the remote machine that they want to make access to. And each objective environment has the mechanism to clarify the accessing entity's information about their identity, role, and other information about the security. The user should bind their personal ID used for TCP, the stander certificate, such as X.509, took from the CA, and the role information together. And the cloud computing system has the according mechanism to verify this information about each user. Moreover, a role hierarchy is introduced to reflect inheritance of authority and responsibility among the roles. If a user has a user-role certificate showing membership in role R, and a cloud computing service requires role r, the user should be able to get permission. On the other hand, the resource owners should also use this mechanism to express their identities, and get the rights to provide their resources to other users.

The cloud computing service should present which role it will give the per本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。