DocumentCode :
2832606
Title :
A Certificate-Based Signcryption Scheme
Author :
Luo, Ming ; Wen, Yingyou ; Zhao, Hong
Author_Institution :
Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang
fYear :
2008
fDate :
Aug. 29 2008-Sept. 2 2008
Firstpage :
17
Lastpage :
23
Abstract :
In Eurocrypt 2003, Gentry introduced the notion of certificate-based encryption, which combines traditional pubic key encryption (PKE) with identity-based encryption (IBE) while preserving most of the advantages of each, such as no private key escrow and less PKI infrastructure. In this paper, we propose the security notion of certificate-based signcryption and present a concrete certificate-based signcryption scheme derived from pairings on elliptic curves and prove its security in the random oracle model. Additionally, our scheme satisfies the public verifiability and forward secrecy. Compared with the certificate-based sign-then-encrypt scheme, our scheme enjoys shorter message length and less operation cost.
Keywords :
public key cryptography; certificate-based encryption; certificate-based sign-then-encrypt scheme; certificate-based signcryption scheme; elliptic curves pairings; forward secrecy; identity-based encryption; pubic key encryption; random oracle model; security notion; Authentication; Computer science; Costs; Elliptic curve cryptography; Elliptic curves; Identity management systems; Identity-based encryption; Public key; Public key cryptography; Security;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Science and Information Technology, 2008. ICCSIT '08. International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-0-7695-3308-7
Type :
conf
DOI :
10.1109/ICCSIT.2008.14
Filename :
4624825
Link To Document :
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