Watermark-based Provable Data Possession for Multimedia File in Cloud Storage
Yongjun Ren, Jiang Xu, Jin Wang, Liming Fang, Jeong‐Uk Kim · Advanced science and technology letters · 2014
In cloud computing, data owners host their data on cloud servers and data consumers can access the data from cloud servers. Due to the data outsourcing, however, this new paradigm of data hosting service also introduces new security challenges, which requires an independent auditing service to check the data integrity in the cloud. However, the existing solutions are not specific to the multimedia data. Moreover copyright protection is not provided. In this paper, we define specially a provable data possession model for multimedia file, and present a framework based on digital watermarking for multimedia data storage audit service, in which we define the security features of audit service for multimedia data outsourcing and the corresponding properties of digital watermarking.