Biometric information hiding: Promoting multimedia security with content and identity authentication

Biometrics and information hiding, as two different yet promising techniques for individual identification and digital media protection, have been extensively studied in the latest decade. Recently, hybrid approaches that combine these two techniques (i.e., biometric information hiding) for advanced information security have obtained increasing research interest. The principle idea is applying information hiding as data anti-counterfeit tool for secure biometric authentication, or introducing biometrics as identity token to information hiding applications such as: owner identification, traitor tracing. In this paper, we present a brief classification of existing biometric information hiding approaches and discuss the corresponding emerged requirements. Meanwhile, two typical application cases proposed in our previous work, which adopted face and fingerprint as watermarks respectively are further discussed and analysed.