Perfectly one-way probabilistic hash functions (preliminary version)
STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
Towards Realizing Random Oracles: Hash Functions That Hide All Partial Information
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Probabilistic encryption & how to play mental poker keeping secret all partial information
STOC '82 Proceedings of the fourteenth annual ACM symposium on Theory of computing
On obfuscating point functions
Proceedings of the thirty-seventh annual ACM symposium on Theory of computing
Correcting errors without leaking partial information
Proceedings of the thirty-seventh annual ACM symposium on Theory of computing
On the Impossibility of Obfuscation with Auxiliary Input
FOCS '05 Proceedings of the 46th Annual IEEE Symposium on Foundations of Computer Science
Improved proxy re-encryption schemes with applications to secure distributed storage
ACM Transactions on Information and System Security (TISSEC)
Private searching on streaming data
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
Fully collusion resistant traitor tracing with short ciphertexts and private keys
EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
Chosen-ciphertext secure proxy re-encryption
Proceedings of the 14th ACM conference on Computer and communications security
Tracing Malicious Proxies in Proxy Re-encryption
Pairing '08 Proceedings of the 2nd international conference on Pairing-Based Cryptography
Traitor tracing with constant size ciphertext
Proceedings of the 15th ACM conference on Computer and communications security
Multi-use unidirectional proxy re-signatures
Proceedings of the 15th ACM conference on Computer and communications security
TCC '09 Proceedings of the 6th Theory of Cryptography Conference on Theory of Cryptography
CCA-Secure Proxy Re-encryption without Pairings
Irvine Proceedings of the 12th International Conference on Practice and Theory in Public Key Cryptography: PKC '09
On cryptography with auxiliary input
Proceedings of the forty-first annual ACM symposium on Theory of computing
Key-Private Proxy Re-encryption
CT-RSA '09 Proceedings of the The Cryptographers' Track at the RSA Conference 2009 on Topics in Cryptology
Towards Security Notions for White-Box Cryptography
ISC '09 Proceedings of the 12th International Conference on Information Security
Obfuscating straight line arithmetic programs
Proceedings of the nineth ACM workshop on Digital rights management
IWSEC'07 Proceedings of the Security 2nd international conference on Advances in information and computer security
(Convertible) undeniable signatures without random oracles
ICICS'07 Proceedings of the 9th international conference on Information and communications security
Unidirectional chosen-ciphertext secure proxy re-encryption
PKC'08 Proceedings of the Practice and theory in public key cryptography, 11th international conference on Public key cryptography
On strong simulation and composable point obfuscation
CRYPTO'10 Proceedings of the 30th annual conference on Advances in cryptology
On the impossibility of cryptography alone for privacy-preserving cloud computing
HotSec'10 Proceedings of the 5th USENIX conference on Hot topics in security
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
Practical adaptive oblivious transfer from simple assumptions
TCC'11 Proceedings of the 8th conference on Theory of cryptography
A note on obfuscation for cryptographic functionalities of secret-operation then public-encryption
TAMC'11 Proceedings of the 8th annual conference on Theory and applications of models of computation
A general and efficient obfuscation for programs with tamper-proof hardware
ISPEC'11 Proceedings of the 7th international conference on Information security practice and experience
On obfuscating programs with tamper-proof hardware
Inscrypt'10 Proceedings of the 6th international conference on Information security and cryptology
Secure obfuscation of encrypted verifiable encrypted signatures
ProvSec'11 Proceedings of the 5th international conference on Provable security
Multi-stage binary code obfuscation using improved virtual machine
ISC'11 Proceedings of the 14th international conference on Information security
Obfuscation of hyperplane membership
TCC'10 Proceedings of the 7th international conference on Theory of Cryptography
Achieving key privacy without losing CCA security in proxy re-encryption
Journal of Systems and Software
On the (im)possibility of obfuscating programs
Journal of the ACM (JACM)
CCA proxy re-encryption without bilinear maps in the standard model
PKC'10 Proceedings of the 13th international conference on Practice and Theory in Public Key Cryptography
Secure obfuscation for encrypted signatures
EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
Efficient unidirectional proxy re-encryption
AFRICACRYPT'10 Proceedings of the Third international conference on Cryptology in Africa
A note on (im)possibilities of obfuscating programs of zero-knowledge proofs of knowledge
CANS'11 Proceedings of the 10th international conference on Cryptology and Network Security
Functional re-encryption and collusion-resistant obfuscation
TCC'12 Proceedings of the 9th international conference on Theory of Cryptography
Security and Communication Networks
Identity-based proxy re-encryption without random oracles
ISC'07 Proceedings of the 10th international conference on Information Security
On the impossibility of approximate obfuscation and applications to resettable cryptography
Proceedings of the forty-fifth annual ACM symposium on Theory of computing
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We present the first positive obfuscation result for a traditional cryptographic functionality. This positive result stands in contrast to well-known negative impossibility results [BGI+01] for general obfuscation and recent negative impossibility and improbability [GK05] results for obfuscation of many cryptographic functionalities. Whereas other positive obfuscation results in the standard model apply to very simple point functions, our obfuscation result applies to the significantly more complicated and widely-used re-encryption functionality. This functionality takes a ciphertext for message m encrypted under Alice's public key and transforms it into a ciphertext for the same message m under Bob's public key. To overcome impossibility results and to make our results meaningful for cryptographic functionalities, we use a new definition of obfuscation. This new definition incorporates more security-aware provisions.