Identity-based storage management and integrity verify protocol for secure outsourcing in multi-cloud

Verifying the integrity of outsourced data is an important issue in cloud storage. Recently, many integrity verify protocols have been proposed that can support the public verifiability, data dynamics, and privacy against verifiers but involve a third-party auditor's participation. In this work, we propose a novel identity-based storage management and integrity verify protocol for secure outsourcing in multi-cloud. From theoretical analysis and a lot of simulation experiments, we show our proposed protocol is secure and efficient, without using any trusted organizer. Furthermore, the protocol enjoys many important security attributes including prevention of various attacks, user anonymity, local password verification, and so on.