Abstract: The data integrity verification in mobile cloud computing environment was analyzed. A method for lightweight verification on data integrity was proposed， which was based on BLS short signature scheme and Merkle Hash tree data structure. Considering the resource constraints and “harsh” environment of mobile devices， the method is suitable for mobile computing environment and has many good features of proposed schemes. Through the method the verification process could be accomplished with high accuracy， light computing and low data transmission. In this method， outsourcing verification was supported， data integrity could be verified without using directly source file blocks， process of verification could be stateless， and dynamic data operation could be archived in cloud. It is suitable for the service on data in mobile cloud computing environment.

Key words: mobile cloud computing, data integrity verification, lightweight data, data security, cloud computing security