Title :
Design of a VoIP Media Stream Encryption Device
Author :
Xiao, Meng ; Li, Cuiran
Author_Institution :
Sch. of Autom. & Electr. Eng., Lanzhou Jiaotong Univ., Lanzhou, China
Abstract :
The design of a VoIP media stream encryption device based on ARM9 CPU is introduced. The device can be deployed between the Soft Switch or IP-PBX and the VoIP terminal, dedicatedly used for the encryption/de-encryption of the VoIP signal and the RTP voice packet. As an illustration, the encryption flow of the packet is described when the VoIP protocol is SIP and the encryption algorithm is RC4. Then a test is implemented to compare the packet before the encryption and after that, the effectiveness of the design is proved.
Keywords :
Internet telephony; cryptographic protocols; media streaming; private telephone exchanges; signalling protocols; ARM9 CPU; IP-PBX; RC4 encryption algorithm; RTP voice packet; SIP; VoIP media stream encryption device design; VoIP protocol; deencryption algorithm; soft switch; Algorithm design and analysis; Encryption; Loading; Production facilities; Switches;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5600567
