Multimedia Security: Novel Steganography and Privacy Preserving

Privacy Preserving Search of Multimedia

The advancement of information technology is rapidly integrating the physical world where we live and the online world where we retrieve and share information. One immediate example of such integration is the increasing popularity of storing and managing personal data using third-party web services, as part of the emerging trend of cloud computing. Secure management of sensitive data stored onl...

Privacy Preserving Collaborative Data Mining Using Steganography and Encryption

Data collection is an essential step in data miningprocess. Collecting data of varying nature and still preserving privacy is essential for many applications. Privacy concerns maypreventdirect sharing of data andhow multipleparties collaboratively conduct data mining withoutbreaching data privacy presents a challenge.Cryptography involves converting a message text into anunreadable cipher and s...

Privacy Preserving OLAP and OLAP Security

Privacy-preserving security solution for cloud services

We propose a novel privacy-preserving security solution for cloud services. Our solution is based on an efficient nonbilinear group signature scheme providing the anonymous access to cloud services and shared storage servers. The novel solution offers anonymous authenticationfor registered users. Thus, users' personal attributes (age, valid registration, successful payment) can be proven withou...

Secure signal processing: Privacy preserving cryptographic protocols for multimedia

The processing and encryption of multimedia content are generally considered sequential and independent operations. In certain multimedia content processing scenarios, it is however, desirable to carry out processing directly on encrypted signals. The field of secure signal processing poses significant challenges for both signal processing and cryptography research; only few ready to go fully i...