ECC certificate for authentication in cloud-based RFID

Cloud computing is the access via internet to shared resources and services. Merging this technology with RFID enabled the improvement of the latter such as data storage and processing, and both allow to have intelligent environments and access services anytime and anywhere. But this fusion is the subject of some criticism concerning the data security and privacy. In this article we are interested in the authentication of tag / reader to the cloud interface and we propose a protocol using elliptic curve cryptography (ECC) to verify the identity of readers before issuing the certificate which authenticates the reader to tag, and then lets them access the cloud interface.