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Elasticity and on-demand access in the cloud model is a root for some incompatibilities. As an example, scaling up/down are not completely supported in current monitoring techniques. Moreover, definition or even existence of perimeters is not the same as before, therefore security solutions cannot simply put guards at communication channels to control everything. This requires exhaustive research and development to add elasticity to solutions and control data at possible perimeters.

Another concern is about compliance of monitoring activities with legal issues Monitoring mechanisms should have flexibility so customers can choose from a set of compatible mechanisms regarding to their concerns and environmental constrains. Security mechanisms are not mature enough to support reputation isolation; in order to cover this shortcoming, human interaction is required in some monitoring decisions. Human interaction in decision making is not scalable and can become a bottleneck. Real life example is Amazon EC2 white listing procedure for email sender instances.

Current Security model of the cloud computing

In order to archive security in cloud computing system, some technologies have been used to build the security mechanism for cloud computing. The cloud computing security can be provided as security services. Security messages and secured messages can be transported, understood, and manipulated by standard Web services tools and software. This mechanism is a good choice because the web service technology has been well established in the network-computing environment.

Even the mechanism for the cloud computing security has many merits now, but there are still some disadvantages. For example, there is short of the mechanism on the hardware to support the trusted computing in cloud computing system. The trusted root in cloud computing environment has not been defined clearly. The creation and protection of certificates are not secure enough for cloud computing environments. The performance is reduced apparently when the cryptographic computing are processed. There are also lack of some mechanisms to register and classify the participants carefully, such as the tracing and monitoring for them. In the following section, we will analyze the challenge for the cloud computing security in deep.

The challenge for the security in cloud computing

In cloud computing environment, many users participate in the CLOUD and they join or leave CLOUD dynamically. Other resources in the cloud computing environments are the same too. Users, resources, and the CLOUD should establish the trustful relationship among themselves. And they will be able to deal with the changing dynamically.

The CLOUD includes distributed users and resource from distributed local systems or organizes, which have different security policies. According to this reason, how to build a suitable relationship among them is a challenge. In fact, the requirements for the security in cloud computing environment have some aspects, including confidentiality.

Research Methodology

Trusted Computing Technology