Recent Fingerprinting Techniques with Cryptographic Protocol
Minoru Kuribayashi · Signal Processing · 2010
In this chapter, we investigated an asymmetric fingerprinting protocol with additive homomorphism and a method for implementing watermarking technique in an encrypted domain for assuring the asymmetric property of fingerprinting system. We developed the commitment scheme utilized to achieve the asymmetric property, and enhance the enciphering rate by applying Okamoto-Uchiyama encryption scheme for the cryptographic protocol that retains additive homomorphism. In order to contain information in one ciphertext as much as possible, the large message space is effectively partitioned by multiplexing each fingerprinted and encrypted component of an image.