Fingerprinting long forgiving messages
Lecture notes in computer sciences; 218 on Advances in cryptology---CRYPTO 85
A New Identification Scheme Based on the Bilinear Diffie-Hellman Problem
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ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
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IHW '01 Proceedings of the 4th International Workshop on Information Hiding
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PKC '99 Proceedings of the Second International Workshop on Practice and Theory in Public Key Cryptography
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
An Efficient Anonymous Fingerprinting Protocol
Computational Intelligence and Security
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The illegal copying and redistribution of digitally-stored information is a crucial problem to distributors who electronically sell digital data. Fingerprinting provides a means which a copyright owner can trace illegal redistributors of electronic information. Various fingerprinting schemes have appeared as techniques for copyright protection from symmetric fingerprinting by Boneh and Shaw [3], asymmetric fingerprinting by Pfitzmann and Schunter [14], and anonymous fingerprinting by Pfitzmann and Waidner [15]. In most of previous schemes, the computational capability of clients has been assumed to roughly be equal to each other and even to their servers. In particular, the key size of known algorithms for fingerprinting schemes keeps back from their practical implementation. In this paper, we propose a scheme for anonymous fingerprinting based on the bilinear Diffie-Hellman problem and prove its security. Our scheme exhibits all computations are performed more efficiently than previous schemes and the key size is quite reasonable for practical use.