NDLI: Real time implementation of Elliptic Curve Cryptography over a open source VoIP server

Content Provider	IEEE Xplore Digital Library
Author	Subashri, T. Arjun, A. Ashok, S.
Copyright Year	2014
Description	Author affiliation: Dept. of Electron. & Commun. Eng., Anna Univ., Chennai, India (Subashri, T.; Arjun, A.; Ashok, S.)
Abstract	This paper presents the design and the implementation of Elliptic Curve Cryptography in an Asterisk VoIP server which serves as an exchange for placing voice calls over the internet. Voice over internet protocol refers to the transmission of speech encoded into data packets transmitted across networks. VoIP networks are prone to confidentiality threats due to the weak keys used by the AES algorithm for encryption of the VoIP packets. So, in order to strengthen the key for encryption/decryption, Elliptic Curve Diffie-Hellman (ECDH) Algorithm key agreement scheme is employed with smaller key sizes resulting in faster computations. The elliptic curve used in this paper is a modified NIST P-256 curve and key generation algorithm using split exponents for fast exponentiation has been implemented to speed up and increase the randomness of key generation. The implementation of split exponents also help in increasing the security of the keys generated. The key generated by ECDH is highly secure because the discrete logarithmic problem is very difficult in this scheme. This Method is successfully carrying out voice calls on VoIP clients connected to the internet. This ECDH key exchanging mechanism for voice calls in real time is implemented on an Asterisk PBX (Private Branch eXchange), using AGI(Asterisk Gateway Interface) server.
Starting Page	1
Ending Page	6
File Size	1117031
Page Count	6
File Format	PDF
e-ISBN	9781479926961
DOI	10.1109/ICCCNT.2014.6963029
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Split Exponents IAX Elliptic curves Dynamic ECDH Key exchange VoIP Elliptic curve cryptography Encryption Asterisk PBX SIP Servers Softphone
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

Dynamic ECDH mechanism for enhancing privacy of voice calls on mobile phones over VoIP server

Implementation and integration of efficient ECDH key exchanging mechanism in software based VoIP network

Speech based dialog query system over asterisk PBX server

Asterisk VoIP private branch exchange

ASR System Integration with Asterisk for SIP or IAX Softphone Clients

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Wireless Voip Implementation Using Asterisk Pbx and Open Source Softphone

A Novel Approach towards Mutual Authentication and Key Exchange Protocol Based on Elliptic Curve

A Certificate-Based Authenticated Key Agreement Protocol for SIP-Based VoIP Networks

Real time implementation of Elliptic Curve Cryptography over a open source VoIP server

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