Cloud computing is interesting from the economic, operational and even energy consumption perspectives but it still raises concerns regarding
the security, privacy, governance and compliance of the data and software services offered through it. However, the task of verifying security
properties in services running on cloud is not trivial. We notice the provision and security of a cloud service is sensitive. Because of the
potential interference between the features and behavior of all the inter-dependent services in all layers of the cloud stack (as well as dynamic
changes in them). Besides current cloud models do not include support for trust-focused communication between layers. We present a
mechanism to implement cloud service certification process based on the usage of Trusted Computing technology, by means of its Trusted Computing Platform (TPM) implementation of its architecture. Among many security security features it is a tamper proof resistance built in device and provides a root of trust to affix our certification mechanism. We present as a security pattern the approach for service certification based on the use TPM.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec