How to construct random functions
Journal of the ACM (JACM)
On the Exact Security of Full Domain Hash
CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
Identity-Based Encryption from the Weil Pairing
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
Improved proxy re-encryption schemes with applications to secure distributed storage
ACM Transactions on Information and System Security (TISSEC)
Chosen-ciphertext secure proxy re-encryption
Proceedings of the 14th ACM conference on Computer and communications security
Identity-Based Proxy Re-encryption
ACNS '07 Proceedings of the 5th international conference on Applied Cryptography and Network Security
Type-Based Proxy Re-encryption and Its Construction
INDOCRYPT '08 Proceedings of the 9th International Conference on Cryptology in India: Progress in Cryptology
Conditional proxy re-encryption secure against chosen-ciphertext attack
Proceedings of the 4th International Symposium on Information, Computer, and Communications Security
Inter-domain Identity-Based Proxy Re-encryption
Information Security and Cryptology
Efficient Conditional Proxy Re-encryption with Chosen-Ciphertext Security
ISC '09 Proceedings of the 12th International Conference on Information Security
Two-tier signatures, strongly unforgeable signatures, and Fiat-Shamir without random oracles
PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
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
Identity-based proxy cryptosystems with revocability and hierarchical confidentialities
ICICS'10 Proceedings of the 12th international conference on Information and communications security
New identity-based proxy re-encryption schemes to prevent collusion attacks
Pairing'10 Proceedings of the 4th international conference on Pairing-based cryptography
EuroPKI'10 Proceedings of the 7th European conference on Public key infrastructures, services and applications
Improved efficiency for CCA-secure cryptosystems built using identity-based encryption
CT-RSA'05 Proceedings of the 2005 international conference on Topics in Cryptology
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Fully secure unidirectional identity-based proxy re-encryption
ICISC'11 Proceedings of the 14th international conference on Information Security and Cryptology
Proxy re-encryption systems for identity-based encryption
Pairing'07 Proceedings of the First international conference on Pairing-Based Cryptography
Identity-based proxy re-encryption without random oracles
ISC'07 Proceedings of the 10th international conference on Information Security
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Although a few unidirectional single-hop Identity-Based Proxy Re-Encryption (IBPRE) systems are available in the literature, none of them is CCA secure in the standard model. Besides, they can not support conditional re-encryption property, which allows a delegator to specify a condition for ciphertexts so that the proxy can re-encrypt ciphertexts only if the re-encryption key corresponding to the same condition is given. This paper, for the first time, proposes a new unidirectional single-hop Identity-Based Conditional Proxy Re-Encryption (IBCPRE) scheme that not only captures the property of IBPRE (i.e. identity-based re-encryption), but also supports conditional re-encryption. Moreover, the scheme can be proved secure against adaptive condition and adaptive identity chosen-ciphertext attacks in the standard model.