Title :
A new identity based signcryption scheme from pairings
Author :
Libert, Benoît ; Quisquater, Jean-Jacques
Author_Institution :
Microelectron. Lab., UCL, Louvain-la-Neuve, Belgium
Abstract :
We present a new identity based scheme using pairings over elliptic curves. It combines the functionalities of signature and encryption and is provably secure in the random oracle model. We compare it with J. Malone-Lee´s scheme from the points of view of security and efficiency. We give a proof of semantic security under the decisional bilinear Diffie-Hellman assumption for this new scheme.
Keywords :
message authentication; public key cryptography; decisional bilinear Diffie-Hellman assumption; efficiency; elliptic curves; encryption; identity based signcryption scheme; pairings; public key; random oracle model; semantic security; signature; Binary sequences; Elliptic curve cryptography; Elliptic curves; Identity-based encryption; Information security; Laboratories; Microelectronics; Public key; Public key cryptography; Telephony;
Conference_Titel :
Information Theory Workshop, 2003. Proceedings. 2003 IEEE
Print_ISBN :
0-7803-7799-0
DOI :
10.1109/ITW.2003.1216718
