Digital Signature Protocol for Visual Authentication Anirban Goswami1, Ritesh Mukherjee2, Soumit Chowdhury3, and Nabin Ghoshal4 1Department of Information Technology, Techno India, India 2Department of Advanced Signal Processing, Centre for Development of Advanced Computing, India 3Department of Computer Science and Engineering, Government College of Engineering and Ceramic

Technology, India 4Department of Engineering and Technological Studies, University of Kalyani, India

#Share # DCT and IDCT # image compression # data hiding # SSIM # collusion attack

Flexible Fair and Collusion Resistant Pseudonym Providing System

Belal Amro1, Albert Levi2, and Yucel Saygin2 1College of IT, Hebron University, Palestine 2Faculty of Engineering and Natural Sciences, Sabanci University, Turkey

#Security # privacy # pseudonym # anonymity # access control

A Robust Secure Self-Certified Concurrent

Signature Scheme from Bilinear Pairings

#Bilinear pairings # concurrent signature # fair exchange # self-certified # trusted third party