Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
Efficient Identity Based Signature Schemes Based on Pairings
SAC '02 Revised Papers from the 9th Annual International Workshop on Selected Areas in Cryptography
Identity-Based Encryption from the Weil Pairing
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
Digital Signcryption or How to Achieve Cost(Signature & Encryption)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Short Signatures from the Weil Pairing
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
A Signcryption Scheme with Signature Directly Verifiable by Public Key
PKC '98 Proceedings of the First International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
An Identity-Based Signature from Gap Diffie-Hellman Groups
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
Identity Based Proxy-Signcryption Scheme from Pairings
SCC '04 Proceedings of the 2004 IEEE International Conference on Services Computing
Efficient ID-based blind signature and proxy signature from bilinear pairings
ACISP'03 Proceedings of the 8th Australasian conference on Information security and privacy
New DSA-verifiable signcryption schemes
ICISC'02 Proceedings of the 5th international conference on Information security and cryptology
Two birds one stone: signcryption using RSA
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
Improved identity-based signcryption
PKC'05 Proceedings of the 8th international conference on Theory and Practice in Public Key Cryptography
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Proxy signcryption is a cryptographic primitive which combines the functionalities of a proxy signature scheme and a signcryption scheme. In this paper, based on bilinear pairings, we would like to propose two efficient proxy singcryption schemes. One is certificate based and the other is identity based. Also we analyze the two proposed schemes from efficiency point of view. We show that the certificate based scheme achieves great efficiency in terms of communication cost and computation overhead. And the identity based scheme is much more efficient than the scheme proposed by Li and Chen. What’s more, we also argument that the two proposed schemes are secure in the random oracle model without a secure channel.