Title :
On the forward secrecy of Chikazawa-Yamagishi ID-based key sharing scheme
Author_Institution :
Samsung Adv. Inst. of Technol., Yongin-Si, South Korea
Abstract :
In this letter, we show that Chikazawa-Yamagishi ID-based key sharing scheme and its improved versions do not satisfy the forward secrecy. Also, we propose a modified version satisfying the forward secrecy.
Keywords :
computer networks; message authentication; protocols; public key cryptography; telecommunication security; Chikazawa-Yamagishi ID-based key sharing scheme; conference key distribution protocol; forward secrecy; key authentication property; public key cryptosystem; secure computer networks; Authentication; Computer networks; Counting circuits; Distributed computing; Equations; Identity-based encryption; Protocols; Public key cryptography; Random number generation;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.823407
