NDLI: Alternate encryption scheme for VoIP traffic

Content Provider	IEEE Xplore Digital Library
Author	Thanthry, N. Gopalakrishnan, G. Pendse, R.
Copyright Year	2009
Description	Author affiliation: Department of Electrical and Computer Engineering, Wichita State University, 1845 Fairmount, KS 67260 USA (Thanthry, N.; Gopalakrishnan, G.; Pendse, R.)
Abstract	Voice over IP is fast emerging as a strong contender to the traditional circuit-switched PSTN networks. Unlike the PSTN network, which requires dedicated lines, VoIP can share the network that is laid out to carry data traffic as well as other traffic categories. Securing VoIP and other real-time traffic is necessary considering the easy ways of hacking communication over internet. Most of the existing security solutions for VoIP such as IPSec, Secure Real Time Protocol (SRTP) and ZRTP use the standard symmetric encryption algorithms for encrypting voice traffic. In this paper, the authors propose an alternate encryption scheme that uses PKI architecture for the initial authentication and key exchange, and encrypts the real-time traffic with a symmetric algorithm using a unique key for each packet. The proposed algorithm expected to be less complex compared to the traditional encryption schemes in addition to enhancing the security of the communication. Initial analysis carried out by the authors indicates that the proposed scheme helps in improving the voice quality to a certain extent while maintaining the security of the communication.
Starting Page	178
Ending Page	183
File Size	574044
Page Count	6
File Format	PDF
ISBN	9781424441693
DOI	10.1109/CCST.2009.5335543
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-05
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Security Telecommunication traffic Internet telephony Authentication Public key Delay Cryptographic protocols Public key cryptography Circuits Computer crime
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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