CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Protecting data privacy in private information retrieval schemes
STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
Journal of the ACM (JACM)
Oblivious transfer and polynomial evaluation
STOC '99 Proceedings of the thirty-first annual ACM symposium on Theory of computing
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Identity-Based Encryption from the Weil Pairing
SIAM Journal on Computing
Key-Privacy in Public-Key Encryption
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Concealing complex policies with hidden credentials
Proceedings of the 11th ACM conference on Computer and communications security
Oblivious signature-based envelope
Distributed Computing
Protocols for secure computations
SFCS '82 Proceedings of the 23rd Annual Symposium on Foundations of Computer Science
TCC '09 Proceedings of the 6th Theory of Cryptography Conference on Theory of Cryptography
Security proofs for signature schemes
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
TCC'08 Proceedings of the 5th conference on Theory of cryptography
Revisiting oblivious signature-based envelopes
FC'06 Proceedings of the 10th international conference on Financial Cryptography and Data Security
Anonymous hierarchical identity-based encryption (without random oracles)
CRYPTO'06 Proceedings of the 26th annual international conference on Advances in Cryptology
Privacy-preserving group discovery with linear complexity
ACNS'10 Proceedings of the 8th international conference on Applied cryptography and network security
Location privacy and resilience in wireless sensor networks querying
Computer Communications
Proceedings of the first ACM conference on Data and application security and privacy
(If) size matters: size-hiding private set intersection
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
Efficient techniques for privacy-preserving sharing of sensitive information
TRUST'11 Proceedings of the 4th international conference on Trust and trustworthy computing
Private search in the real world
Proceedings of the 27th Annual Computer Security Applications Conference
Practical private set intersection protocols with linear complexity
FC'10 Proceedings of the 14th international conference on Financial Cryptography and Data Security
Policy-Enhanced private set intersection: sharing information while enforcing privacy policies
PKC'12 Proceedings of the 15th international conference on Practice and Theory in Public Key Cryptography
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As the global society becomes more interconnected and more privacy-conscious, communication protocols must balance access control with protecting participants' privacy. A common current scenario involves an authorized party (client) who needs to retrieve sensitive information held by another party (server) such that: (1) the former only gets the information for which it is duly authorized, (2) the latter does not learn what information information is retrieved. To address this scenario, in this paper, we introduce and explore the concept of Privacy-preserving Policy-based Information Transfer (PPIT). We construct three PPIT schemes based, respectively, on: RSA, Schnorr and IBE techniques. We then investigate various performance improvements and demonstrate the practicality of proposed PPIT schemes.