A public key cryptosystem and a signature scheme based on discrete logarithms
Proceedings of CRYPTO 84 on Advances in cryptology
Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Efficient Generation of Shared RSA Keys (Extended Abstract)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Relations Among Notions of Security for Public-Key Encryption Schemes
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Time-lock Puzzles and Timed-release Crypto
Time-lock Puzzles and Timed-release Crypto
Order preserving encryption for numeric data
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Coin flipping by telephone a protocol for solving impossible problems
ACM SIGACT News - A special issue on cryptography
Pairing '08 Proceedings of the 2nd international conference on Pairing-Based Cryptography
Order-Preserving Symmetric Encryption
EUROCRYPT '09 Proceedings of the 28th Annual International Conference on Advances in Cryptology: the Theory and Applications 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
Public-key encryption with registered keyword search
EuroPKI'09 Proceedings of the 6th European conference on Public key infrastructures, services and applications
Fuzzy identity-based encryption
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Off-line keyword guessing attacks on recent keyword search schemes over encrypted data
SDM'06 Proceedings of the Third VLDB international conference on Secure Data Management
Probabilistic public key encryption with equality test
CT-RSA'10 Proceedings of the 2010 international conference on Topics in Cryptology
Public key encryption schemes supporting equality test with authorisation of different granularity
International Journal of Applied Cryptography
Public key encryption supporting plaintext equality test and user-specified authorization
Security and Communication Networks
Controlled joining on encrypted relational database
Pairing'12 Proceedings of the 5th international conference on Pairing-Based Cryptography
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In this paper we investigate a new category of public key encryption schemes which supports equality test between ciphertexts.With this primitive, two users, who possess their own public/private key pairs, can issue token(s) to a proxy to authorize it to perform equality test between their ciphertexts. We provide a formulation and a corresponding construction for this primitive, and our formulation provides fine-grained authorization policy enforcements for users.With the increasing popularity of outsourcing data and computations to third-party service providers, this primitive will be an important building block in designing privacy protection solutions supporting operations on encrypted data.