Title :
A Hash Tree Based Authentication Scheme in SIP Applications
Author :
Xu, Ke ; Ma, Xiaowei ; Liu, Chunyu
Author_Institution :
ChinaDepartment of Comput. Sci. & Technol., Tsinghua Univ., Beijing
Abstract :
Being one of the leading signaling protocols of VoIP applications, SIP protocol becomes popular in IP-based multimedia services, and securing SIP has become a priority. In this paper, we develop a novel authentication scheme which relies only on one way hash functions. In contrast to the computationally expensive asymmetric RSA signature scheme, our scheme is efficient in signing and verifying procedures. And hash tree is exploited to store and verify key information. Our scheme can be used in SIP entities which have less computation power and limited memory.
Keywords :
Internet telephony; cryptography; message authentication; multimedia communication; signalling protocols; IP-based multimedia service; SIP protocol; VoIP application; authentication; hash functions; hash tree; session initial protocol; signaling protocol; Application software; Authentication; Communication system control; Communications Society; Computer science; Games; Power system modeling; Protocols; Security; Traffic control;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.292
