Secure Data Collection, Storage and Access in Cloud-Assisted IoT

Abstract

Cloud-assisted Internet of Things (IoT) provides a promising solution to data booming problems for the ability constraints of individual objects. However, with the leverage of cloud, IoT faces new security challenges for data mutuality between two parties, which is introduced for the first time in this paper and not currently addressed by traditional approaches. We investigate a secure cloud-assisted IoT data managing method to keep data confidentiality when collecting, storing and accessing IoT data with the assistance of a cloud with the consideration of users increment. The proposed system novelly applies a proxy re-encryption scheme, which was proposed in [5]. Hence, a secure IoT under our proposed method could resist most attacks from both insiders and outsiders of IoT to break data confidentiality, and meanwhile with constant communication cost for re-encryption anti incremental scale of IoT. We further show the method is practical by numerical results.