Abstract
Cloud computing is widely adopted thanks to the high business agility it guarantees to its consumers. Cloud services negotiation in the market place is a crucial task for both cloud consumer and cloud provider mainly if the cloud consumer inquires specific properties for its applications. Therefore, this task is delegated to a third part which is the cloud broker. This latter is responsible for delivering services to the cloud consumer compliantly to its requirements. The cloud consumer is still not confident in cloud computing and prefers to have his own infrastructure. This paper is thus proposed to boost trust in cloud services. We propose an architecture for cloud brokering that implements dependability properties as a mean for trust assurance.