Abstract This work proposes an efficient approach for the co nstruction and the protection of a dynamic and evol utionary multimodal biometric database. The last is dedicate d to a biometric authentication system operating on a set of connected sites. For a better protection of acquired data, a topological watermarking module is developed to dis simulate the related enrolled person’s files links.

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[15] Yu W. and 8Zaiwen L., A Survey Multimodal Biometrics, Automation and Robotics 3878396, 2011. Asma Kebbeb degree in computer science in 2009 from the University of Annaba. Currently in image processing Laboratory, University of BBA, ALGERIA involves biometric databases protection, genetic and bio inspired algorithms. Messaoud Mostefai PhD degree signal processing from the University of Reims He supervises several PhD theses in electronics and computer science fields. He is currently re information theory group at MSE Laboratory. His research interests include flexible and real time embedded systems, signal and image processing algorithms. Benmerzoug Fateh degree in 2012 from the University of Bordj Bou Arreridj Head of Research and Development at Condor Electronics Company, His research interests include 3D rendering, embedded systems (Linux, Android) and image processing. Youssef Chahir computer scien University, France of the Image team at the GREYC laboratory. His research fields include processing data8mining, spectral analysis and restitution animation in virtual environment 351 and Machine Intelligence , vol. 455, 2005. Zaiwen L., A Survey on Multimodal Biometrics, the Advances in Automation and Robotics, vol. 2, no. 123, pp. Kebbeb received her MS degree in computer science in 2009 from the University of Annaba. Currently, she is pursuing her PhD in image processing at MSE Laboratory, University of BBA, ALGERIA. Her current research databases construction and and bio inspired algorithms. Messaoud Mostefai received his degree in automatic and digital signal processing from the University of Reims, France in 1995. He supervises several PhD theses in electronics and computer science fields. He is currently responsible of information theory group at MSE Laboratory. His research interests include flexible and real time embedded systems, signal and image Benmerzoug Fateh received his MS degree in network and multimedia in from the University of Bordj Bou Arreridj. He is currently the Head of Research and Development at Condor Electronics Company, His research interests include real8time ystems (Linux, Android) and Youssef Chahir Professor at the computer science department, Caen University, France. He is a member of the Image team at the GREYC laboratory. His research interest fields include image and video processing and analysis, multimedia nalysis and restitution and animation in virtual environment.