Efficient Collaborative Key Management Protocol for Secure Mobile Cloud Data Storage

Abstract

Mobile Cloud Computing (MCC) is the assimilation of mobile computing, cloud computing and wireless networks to make mobile thin client devices resource-rich in terms of storage, memory computational power, and battery power by remotely executing the wide range of mobile application’s data in a pay-per-use cloud computing environment. In MCC, one of the primary concern is the security and privacy of data managed in cloud. The existing techniques fail to manage key security during key generation and key distribution processes. The primary objective of this project work is to develop an efficient collaborative key management protocol for secure mobile cloud data storage by implementing file encryption, key generation, key encryption, key decryption, key distribution, and file decryption methods. In our proposed methodology, we are getting Storage as a Service (SaaS) for accessing the secure data from DriverHQ public cloud infrastructure. The secret keys are generated by using Pseudorandom Number Generator (PRNG) algorithm that uses mathematical way to produce sequences of random numbers. The algorithm achieves the security for the file data and key by eliminating key escrow and key exposure problems. The input files are encrypted and decrypted by using Advanced Encryption Standard (AES) algorithm. The AES algorithm is more vulnerable against exhaustive key search attack. So, the proposed method achieves data confidentiality and data integrity in mobile cloud data. And also the work reduces encryption and decryption computation and storage overhead in thin client mobile devices, and minimizes the energy consumption of the mobile devices efficiently.