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About 967 papers for “Secure multicast”

Secure multicast conferencing

PT Kirstein, Ian Brown, E. Whelan · UCL Discovery (University College London) · 2000

This paper outlines the architectural principles of secured multicast conferencing. It discusses the general principles of the unsecured activity, giving details of tools, methods of announcing conferences, and relaying between multicast and unicast. It then considers how to secure these activities using techniques being standardised by the Internet Engineering Task Force.

Cited by 1

Secure Multicast in . . .

Sen Xu, et al. · 2008

Multicast enables efficient large-scale content distribution and has become more and more popular in network service. Security is a critical issue for multicast because many applications require access control and privacy. This issue is more sensitive to wireless network, which is lack of physical boundaries. IEEE 802.16 is the standard for next generation wireless network, which aims to provide the last mile access for Wireless Metropolitan Area Network (WirelessMAN). Multicast is also supported in IEEE 802.16, and a Multicast and Broadcast Rekeying Algorithm (MBRA) was proposed in the standard as an optional function for secure multicast. However, this algorithm does not provide backward and forward secrecy. It is not scalable to a large group either. This paper reviews the above two deficiencies of MBRA and proposes revision to address these problems for Intra-BS multicast. We also propose algorithms for secure multicast in different scenarios of WirelessMAN besides its basic schema, including Inter-BS multicast, multicast for mesh network, and multicast during handover.

Cited by 0

Secure overlay multicast

Rare & Special e-Zone (The Hong Kong University of Science and Technology) · 2004

Secure overlay multicast by Wai-Pun Yiu thesis 2004 xiii, 77 leaves : ill. ; 30 cm Application layer multicast (ALM) has been proposed to overcome current limitations in IP multicast. We address, for the first time, offering data confidentiality in…Read more ›

Cited by 0

Secure multicast transmission

W. R. Salem Jeyaseelan, Shanmugasundaram Hariharan · 2013 Fourth International Conference on Computing, Communications and Networking Technologies (ICCCNT) · 2013

The group communication has been implemented by Multicast Authentication Batch Signature (MABS). This eliminates the network overheads such as packet loss, latency computation and communication overhead. The Batch signature is the effective cryptographic primitive which authenticates any number of packets simultaneously. This paper gives the solution by introducing Enhanced Multicast Authentication Batch Signature (MABS-E) by eliminating DOS impact. The sender side file content is displayed in both sender and receiver. The receiver can send the request to the sender by sending the file name. The authentication is verified by the sender by use of batch verify(). Then sender splits the file content into packets and signs each packet by generating the key then encrypts the packets and sends to the receiver. The receiver verifies the packets and then decrypts the message using sender's public key.

Cited by 1

Secure overlay multicast

W.-P.K. Yiu · 2004

Secure overlay multicast by Wai-Pun Yiu thesis 2004 xiii, 77 leaves : ill. ; 30 cm Application layer multicast (ALM) has been proposed to overcome current limitations in IP multicast. We address, for the first time, offering data confidentiality in…Read more ›

Cited by 0

IPv6 Secure Multicast Conferencing

Dowon Hyun, Wookyung Sung, Dohyun Pyon et al. · 2006 International Conference on Hybrid Information Technology · 2006

This paper describes the implementation of a system to provide IPv6 secure multicast conferencing, to prove that it can be developed with existing technologies. In these IPv6 secure multicast conferencing systems, there is a set of conferencing clients that can send and receive audio/video data, and a GCKS (Group Controller Key Server) that can manage multicast group. The main problem in such a system is the management and distribution of the keying data including rekeying when a user leaves the multicast group. Standardization of structure and keying data exchange for secure multicast by IETF Multicast Security Working Group (MSEC). We propose a system that integrates different existing technologies into a Windows-based environment. Audio and video data are transmitted using RTP (Real Time Protocol) through multicast protocols. Also we evaluate performance of IPv6 secure multicast application and conclude adding security in application does not damage a real-time characteristic.

Cited by 0

Secure multicast software delivery

Lin Han, Nahid Shahmehri · 2002

Nowadays, purchased software is delivered via sending CD-ROMs or downloading from the Internet. These solutions are either time-consuming or not scalable when the number of end-users becomes large. In this paper, we explore the use of multicast technology as an option for software delivery. We present a global structure for multicast software delivery and look into security issues, mainly focusing on access control in establishing a secure multicast recipient group. A communication schema between each entity in a multicast software delivery system is described in detail. We also describe briefly the implementation of our current prototype for a multicast software delivery system. Such electronic software delivery is the first phase of our ongoing project towards unattended software installation, configuration and upgrade.

Cited by 16

Secure Hierarchical Multicast Routing and Multicast Internet Anonymity

Clay Shields · Defense Technical Information Center (DTIC) · 1998

In a computer network, multicast provides an efficient many-to-many service by constructing a delivery tree across all the members of the multicast group. There are a number of existing protocols for performing multicast routing. This work improves the field of multicast routing by presenting a new protocol that can be used to construct a hierarchical multicast tree composed of heterogeneous multicast domains. It also shows how this protocol can also be made secure, so that only authorized multicast members may use the multicast tree to send and receive data. Finally, this work presents multicast as a method of providing anonymity for participants in Internet communication.

Cited by 0

Secure Acknowledgment of Multicast Messages

In Open Peer-To-Peer · 2007

We propose a new cryptographic technique, Acknowledgment Compression, permitting senders of multicast data to verify that all interested parties have either received the data or lost network connectivity. Joining the system and acknowledging messages both require bandwidth and computation logarithmic in the size of a multicast group. Thus, the technique is well-suited to large-scale, peer-topeer multicast groups in which neither the source nor any single peer wishes to download a complete list of participants. In the event that a high percentage of nodes are malicious, a message may fail to verify. However, in such cases the source learns the real network address of a number of malicious nodes.

Cited by 0

Secure Multicast in the Internet

Mika Karlstedt · 2007

In the future it can be expected that multicast applications will increase in numbers in the Internet. One issue that is of great importance is security in the multicast. This seminar paper for the Seminar on Network Security introduces some of the more important problems in the field and also two solutions to one of those problems. The field is nowhere near ready at the moment and a lot of work has to be done before people can use multicast reliably efficiently and securily in the Internet. 1 Introduction One potential application for multicast is delivering realtime streamlike data to many users. This includes things like net-television and net-radio and also holding a realtime netmeeting on the Internet. The amount of data that has to be delivered with any reasonably good quality videostream is so much that using unicastbased solutions to send data even to a small (10-20) group of receivers is not a good use of resources (bandwidth). Most of multicast applications need some ...

Cited by 0

Fingerprint multicast in secure video streaming

H. Vicky Zhao, K.J. Ray Liu · IEEE Transactions on Image Processing · 2005

Digital fingerprinting is an emerging technology to protect multimedia content from illegal redistribution, where each distributed copy is labeled with unique identification information. In video streaming, huge amount of data have to be transmitted to a large number of users under stringent latency constraints, so the bandwidth-efficient distribution of uniquely fingerprinted copies is crucial. This paper investigates the secure multicast of anticollusion fingerprinted video in streaming applications and analyzes their performance. We first propose a general fingerprint multicast scheme that can be used with most spread spectrum embedding-based multimedia fingerprinting systems. To further improve the bandwidth efficiency, we explore the special structure of the fingerprint design and propose a joint fingerprint design and distribution scheme. From our simulations, the two proposed schemes can reduce the bandwidth requirement by 48% to 87%, depending on the number of users, the characteristics of video sequences, and the network and computation constraints. We also show that under the constraint that all colluders have the same probability of detection, the embedded fingerprints in the two schemes have approximately the same collusion resistance. Finally, we propose a fingerprint drift compensation scheme to improve the quality of the reconstructed sequences at the decoder's side without introducing extra communication overhead.

Cited by 40

Secure and Privacypreserving V2X multicast DNS

Atif, Ayub, Arieltan, Justin · KTH Publication Database DiVA (KTH Royal Institute of Technology) · 2020

The Domain Name System is a hierarchical naming system that provides information of network resources or services given domain names. DNS applications in vehicular networks raise new challenges with regards to security and privacy of vehicles. In particular, vehicular communications outside the coverage of roadside infrastructure needs to be preserved. Multicast DNS is proposed as a method to restrict queries to vehicles in a Vehicle-to-Everything environment which could include other connected devices. Contemporary DNS applications rely on robust security protocols provided by the DNS Security Extensions to authenticate responses and verify resource records. Vehicular DNS communications need authentication to verify the source and legitimacy of DNS resource records. This can be achieved through multihop Vehicle- to-Vehicle communications to reach a name server supplemented by a novel approach to verify records using the Bloom filter.In this thesis, we analyze the security and privacy risks posed by a non-authenticated baseline communication protocol. We then build a secure and privacy-preserving networked system based on pseudonym certificate-based public key infrastructure solution. The experimental analysis confirmed the improvement on security and privacy at the cost of communication and computation overhead.

Cited by 0Open access

Secure Multicast Protocols for Group Communication

Louise E. Moser, P. M. Melliar‐Smith · 2001

Abstract : This final report for this project focuses on: Design and implementation of the Secure Group message ordering and group membership protocols, which are derived from our previous Trans/Total protocols. Design and implementation of the Secure Ring message ordering and group membership protocols, which are derived from our previous Totem single-ring protocols. Experimentation with the FORTEZZA card, the Cryptoki interface, and the Cryptolib software. Development of a system, called the Immune System, that combines the Secure Ring Protocols with the replication manager and majority voting algorithms of Eternal System (also funded by DARPA). Understanding the problem of achieving consensus (which underlies the message ordering and group membership algorithms of group communication systems) for environments that are subject to Byzantine (arbitrary) faults and malicious attacks.

Cited by 0

Multiple Operations for Secure Multicast Communication

Manisha Manjul, Rajesh Mishra · International Journal of Computer Applications · 2014

Group key management is a critical task to make the secure multicast application. Group manager is responsible for changing and re-distributing (rekeying) the group key whenever it deems necessary. Many applications will require a security infrastructure that ensures multiple levels of access control for group members and also require very fast rekeying so that it is not disruptive to their performance. We use a multi-operation key management scheme that achieves hierarchical group access control. Particularly, we use an integrated key graph that maintains keying material for all members with different access privileges. It also incorporates new functionalities that are not present in conventional multicast key management, such as user relocation on the key graph. We use the ECC-GKM elliptic curve cryptosystem for the key exchange and we show the multiple operations such as joining, leaving and switching for multiple levels of access control.

Cited by 0Open access