The goal of this project is to build solutions supporting provision of advanced services related to identity documents. A modern identity document can be regarded in terms of both technical solutions implemented in the document processing system and external systems and services that support it. Therefore, the R&D activities of this project put equal pressure on the document CPU technologies and support systems such as PKI and biometrics. The project addresses the challenges associated with the integration of identification documents, biometrics and security techniques for personal data given either in paper or electronic form. In particular, at the Warsaw University of Technology mechanisms for biometric data protection are elaborated, by ensuring the security of their storage, transmission and processing. These mechanisms are based on solutions in cryptography, biometrics and steganography