Title :
A Provably Secure Anonymous Buyer–Seller Watermarking Protocol
Author :
Rial, Alfredo ; Deng, Mina ; Bianchi, Tiziano ; Piva, Alessandro ; Preneel, Bart
Author_Institution :
Dept. Elektrotechniek (ESAT), Katholieke Univ. Leuven, Leuven, Belgium
Abstract :
Buyer-seller watermarking (BSW) protocols allow copyright protection of digital content. The protocol is anonymous when the identity of buyers is not revealed if they do not release pirated copies. Existing BSW protocols are not provided with a formal analysis of their security properties. We employ the ideal-world/real-world paradigm to propose a formal security definition for copyright protection protocols, and we analyze an anonymous BSW protocol and prove that it fulfills our definition. Additionally, we implement the protocol and measure its efficiency.
Keywords :
copyright; cryptography; multimedia communication; protocols; watermarking; BSW protocols; anonymous buyer-seller watermarking protocol; computer networks; copyright protection protocols; digital content; encryption; formal analysis; ideal-world paradigm; multimedia content; real-world paradigm; Copyright protection; Encryption; Protocols; Public key; Watermarking; Buyer–seller watermarking (BSW) protocol; ideal-world/real-world paradigm;
Journal_Title :
Information Forensics and Security, IEEE Transactions on
DOI :
10.1109/TIFS.2010.2072830
