NDLI: A secure group communication using non-interactive key computation in multiparty key agreement

Content Provider	IEEE Xplore Digital Library
Author	Kalaiselvi, S. Begum, S.J.
Copyright Year	2008
Description	Author affiliation: Velalar Coll. of Eng. & Technol., Erode (Kalaiselvi, S.; Begum, S.J.)
Abstract	Broadcast encryption deals with broadcasting an encrypted message, so that only a set users termed privileged can decrypt it. These privileged set can be formed by selecting t users among n users within the group. To make sure that the data is available only to privileged users in the group the secret key is used which is known only to members of privileged set at any instant of time. Using secret key sender encrypt the data and sends, receiver in turn decrypts it. This privileged set is known as secure group, communication within the set as secure group communication. Since, the secure group is dynamic in nature, members in the group may change over time, i.e., new members may join the group and existing members may leave the group. As group membership changes key must be changed and redistributed securely to all authorized users. This type of communication provides only confidentiality. Providing authentication in addition to confidentiality is an important issue in secure group communication. A protocol is designed for authentic broadcast encryption. Authentication scheme used is a multiparty authentication scheme which allows all the users in the system to send and receive message simultaneously. Since, all the group members in the system can send and receive message, the sender of the message must be able to indicate his identity and the receiver must be able to verify the authenticity of the message. To verify the authenticity the key is formed by non-interactively with the help of information obtained by key distribution center (KDC). This scheme is secure against colluding malicious parties numbering more than k (threshold). This scheme provides authenticity by using a part of information keys which is used for secret key computation, thus without increasing the storage at the user.
Starting Page	1
Ending Page	6
File Size	950441
Page Count	6
File Format	PDF
ISBN	9781424435944
DOI	10.1109/ICCCNET.2008.4787758
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Access control Data security Authentication Broadcast technology Broadcasting Educational institutions Multicast protocols Cryptography Distributed computing Secure storage
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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