Signature schemes based on the strong RSA assumption
ACM Transactions on Information and System Security (TISSEC)
Identity-Based Encryption from the Weil Pairing
SIAM Journal on Computing
Compact and Flexible Resolution of CBT Multicast Key-Distribution
WWCA '98 Proceedings of the Second International Conference on Worldwide Computing and Its Applications
Digital Signcryption or How to Achieve Cost(Signature & Encryption)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
On the Security of Joint Signature and Encryption
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Encrypted Message Authentication by Firewalls
PKC '99 Proceedings of the Second International Workshop on Practice and Theory in Public Key Cryptography
Direct chosen ciphertext security from identity-based techniques
Proceedings of the 12th ACM conference on Computer and communications security
Insider-secure Signcryption KEM/Tag-KEM Schemes without Random Oracles
ARES '08 Proceedings of the 2008 Third International Conference on Availability, Reliability and Security
Efficient Signcryption Key Encapsulation without Random Oracles
Information Security and Cryptology
Secure hash-and-sign signatures without the random oracle
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Chosen-ciphertext secure key-encapsulation based on gap hashed Diffie-Hellman
PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
Short generic transformation to strongly unforgeable signature in the standard model
ESORICS'10 Proceedings of the 15th European conference on Research in computer security
Practical Signcryption
Hybrid signcryption schemes with insider security
ACISP'05 Proceedings of the 10th Australasian conference on Information Security and Privacy
A security acceleration using XML signcryption scheme in mobile grid web services
ICWE'05 Proceedings of the 5th international conference on Web Engineering
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Hybrid signcryption schemes with outsider security
ISC'05 Proceedings of the 8th international conference on Information Security
Strongly unforgeable signatures based on computational diffie-hellman
PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography
Direct chosen-ciphertext secure identity-based key encapsulation without random oracles
ACISP'06 Proceedings of the 11th Australasian conference on Information Security and Privacy
Generic constructions for verifiable signcryption
ICISC'11 Proceedings of the 14th international conference on Information Security and Cryptology
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We present a direct construction for signcryption Key Encapsulation Mechanism (KEM) without random oracles under standard complexity assumptions. Chosen-ciphertext security is proven in the standard model under the DBDH assumption, and unforgeability is proven in the standard model under the CDH assumption. The proof technique allows us to achieve strong unforgeability from the weakly unforgeable Waters signature. The validity of the ciphertext of our signcryption KEM can be verified publicly, without knowledge of the decryption key.