As a further development, cloud providers are joining hands to provide collaborated cloud services which involve participation of multiple clouds. Web applications are migrated between the multiple clouds to enable effective cloud service. There is a need for integrating and standardizing the cloud functionalities to enhance the interoperable capacity of the clouds. Secure collaboration “in press” [11] between multiple cloud platforms is very crucial to enable the interoperability functionalities. The major interoperability functionalities of multiple clouds include authentication, authorization, routing, delivery, elasticity and so on. Out of these functionalities, routing is of prime importance as it is likely to be the heart of communication.