A public key cryptosystem and a signature scheme based on discrete logarithms
Proceedings of CRYPTO 84 on Advances in cryptology
An efficient non-interactive statistical zero-knowledge proof system for quasi-safe prime products
CCS '98 Proceedings of the 5th ACM conference on Computer and communications security
Efficient Zero-Knowledge Proofs of Knowledge Without Intractability Assumptions
PKC '00 Proceedings of the Third International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
Anonymous fingerprinting with robust QIM watermarking techniques
EURASIP Journal on Information Security
Protection and retrieval of encrypted multimedia content: when cryptography meets signal processing
EURASIP Journal on Information Security
Efficient pointwise and blockwise encrypted operations
Proceedings of the 10th ACM workshop on Multimedia and security
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Proving in zero-knowledge that a number is the product of two safe primes
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Public-key cryptosystems based on composite degree residuosity classes
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
Group signatures: better efficiency and new theoretical aspects
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
Foundations of group signatures: the case of dynamic groups
CT-RSA'05 Proceedings of the 2005 international conference on Topics in Cryptology
Rational dither modulation: a high-rate data-hiding method invariant to gain attacks
IEEE Transactions on Signal Processing - Part II
A Buyer–Seller Watermarking Protocol Based on Secure Embedding
IEEE Transactions on Information Forensics and Security
IEEE Transactions on Information Theory
IEEE Journal on Selected Areas in Communications
A buyer-seller watermarking protocol
IEEE Transactions on Image Processing
An efficient and anonymous buyer-seller watermarking protocol
IEEE Transactions on Image Processing
Fingerprinting protocol for images based on additive homomorphic property
IEEE Transactions on Image Processing
A provably secure anonymous buyer-seller watermarking protocol
IEEE Transactions on Information Forensics and Security
An asymmetric fingerprinting scheme based on tardos codes
IH'11 Proceedings of the 13th international conference on Information hiding
Robust watermarking of compressed JPEG images in encrypted domain
Transactions on data hiding and multimedia security VI
An asymmetric fingerprinting code for collusion-resistant buyer-seller watermarking
Proceedings of the first ACM workshop on Information hiding and multimedia security
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Buyer-seller watermarking protocols integrate watermarking techniques with cryptography, for copyright protection, piracy tracing, and privacy protection. In this paper, we propose an efficient buyer-seller watermarking protocol based on homomorphic public-key cryptosystem and composite signal representation in the encrypted domain. A recently proposed composite signal representation allows us to reduce both the computational overhead and the large communication bandwidth which are due to the use of homomorphic public-key encryption schemes. Both complexity analysis and simulation results confirm the efficiency of the proposed solution, suggesting that this technique can be successfully used in practical applications.