The Experts below are selected from a list of 201 Experts worldwide ranked by ideXlab platform

Emad Omara - One of the best experts on this subject based on the ideXlab platform.

  • the Messaging Layer security mls protocol
    2019
    Co-Authors: Emad Omara, Benjamin Beurdouche, Raphael Robert, Jon Millican, Katriel Cohngordon, Richard Barnes
    Abstract:

    Messaging applications are increasingly making use of end-to-end security mechanisms to ensure that messages are only accessible to the communicating endpoints, and not to any servers involved in delivering messages. Establishing keys to provide such protections is challenging for group chat settings, in which more than two clients need to agree on a key but may not be online at the same time. In this document, we specify a key establishment protocol that provides efficient asynchronous group key establishment with forward secrecy and post- compromise security for groups in size ranging from two to thousands.

  • the Messaging Layer security mls federation
    2019
    Co-Authors: Emad Omara, Raphael Robert
    Abstract:

    This document describes how the Messaging Layer Security (MLS) can be used in a federated environment where different MLS implementations can interoperate by defining the message format for user key retrieval. The document also describes some use cases where federation could be useful.

  • Messaging Layer security architecture
    2018
    Co-Authors: Srinivas Inguva, Emad Omara, Benjamin Beurdouche, Albert Kwon, Eric Rescorla, Alan Duric
    Abstract:

    This document describes the architecture and requirements for the Messaging Layer Security (MLS) protocol. MLS provides a security Layer for group Messaging applications with from two to a large number of clients. It is meant to protect against eavesdropping, tampering, and message forgery.

  • the Messaging Layer security mls architecture
    1999
    Co-Authors: Srinivas Inguva, Emad Omara, Benjamin Beurdouche, Albert Kwon, Alan Duric, Eric Rescorla
    Abstract:

    This document describes the architecture and requirements for the Messaging Layer Security (MLS) protocol. MLS provides a security Layer for group Messaging applications with from two to a large number of clients. It is meant to protect against eavesdropping, tampering, and message forgery.

Kwang-roh Park - One of the best experts on this subject based on the ideXlab platform.

  • A scheme for reliable real-time Messaging with bounded delays
    Software - Practice and Experience, 2011
    Co-Authors: Jing Qian, Zhen Zhang, Qian Zhou, Kyung-deok Moon, Jun-hee Park, Kwang-roh Park
    Abstract:

    SUMMARY Network-based real-time computing applications that require tightly bounded end-to-end delays have been increasing at a steady rate in recent years. A Messaging Layer that yields tight bounds on the latencies in detecting message losses and enables the application Layer to initiate a timely recovery action has thus become highly desirable. In this paper, we present a new reliable real-time Messaging scheme called the Delay-Bounded Reliable Messaging Scheme (DB-RMS) that is aimed at meeting such requirements. It is built on top of the User Datagram Protocol sub-Layer. DB-RMS provides multiple service options, each with different fault detection/recovery capabilities and different costs in terms of the execution overhead. This feature makes DB-RMS suitable for a variety of applications. In this paper, the DB-RMS service options and the corresponding support protocols are presented first followed by a formal analysis on the detection and reaction latency bounds under various service options. A Messaging Layer prototype using DB-RMS has been implemented. To demonstrate the practice of the DB-RMS, we implemented a clock synchronization algorithm for 802.11 wireless local area networks on top of the DB-RMS Messaging Layer. Performance measurements of the prototype implementation have been taken, and the positive results obtained are also presented. Copyright © 2011 John Wiley & Sons, Ltd.

  • ISORC - A Scheme for Reliable Real-Time Messaging with Bounded Delays
    2010 13th IEEE International Symposium on Object Component Service-Oriented Real-Time Distributed Computing, 2010
    Co-Authors: Jing Qian, Zhen Zhang, Qian Zhou, Kyung-deok Moon, Jun-hee Park, Kwang-roh Park
    Abstract:

    Network-based real-time computing applications which require tightly bounded end-to-end delays have been increasing at a steady rate in recent years. A Messaging Layer that yields tight bounds on the latencies in detecting message losses and enables the application Layer to initiate a timely recovery action has thus become highly desirable. In this paper we present a new reliable real-time Messaging scheme called the Delay-Bounded Reliable Messaging Scheme (DB-RMS) that is aimed at meeting such requirements. It is built on top of the UDP sub-Layer. DB-RMS provides multiple service options, each with different fault detection/recovery capabilities and different costs in terms of the execution overhead. This feature makes DB-RMS suitable for a variety of applications. The service options and the corresponding support protocols are presented first, followed by a formal analysis on the detection and reaction latency bounds under various service options. A Messaging Layer prototype using DB-RMS has been implemented. Performance measurements of the prototype implementation have been taken and the positive results obtained are also presented.

Henning Schulzrinne - One of the best experts on this subject based on the ideXlab platform.

  • GIST: General Internet Signalling Transport
    2010
    Co-Authors: Henning Schulzrinne, Robert Hancock
    Abstract:

    This document specifies protocol stacks for the routing and transport of per-flow signalling messages along the path taken by that flow through the network. The design uses existing transport and security protocols under a common Messaging Layer, the General Internet Signalling Transport (GIST), which provides a common service for diverse signalling applications. GIST does not handle signalling application state itself, but manages its own internal state and the configuration of the underlying transport and security protocols to enable the transfer of messages in both directions along the flow path. The combination of GIST and the lower Layer transport and security protocols provides a solution for the base protocol component of the "Next Steps in Signalling" framework.

  • Design of CASP - a Technology Independent Lightweight Signaling Protocol
    2003
    Co-Authors: Henning Schulzrinne, Xiaoming Fu, C. Pampu, Siemens Ag, Cornelia Kappler
    Abstract:

    Existing signaling solutions are insufficient in terms of inter-domain and out-of-path signaling, mobility support and inter-working with policy and security mechanisms. The paper presents the Cross-Application Signaling Protocol (CASP) which is a general-purpose protocol for managing state information in network devices. This technology independent signaling protocol can be used for inter- and intra-domain QoS signaling, the configuration of middleboxes, for collecting measurement data and any other application where state management is required. It relies on existing transport protocols and consists of a Messaging Layer and a client Layer. The Messaging Layer is application independent and is responsible for routing, session establishment and feature negotiation. In contrast to this application independent component of CASP, the client Layer is the application-dependent part. As an example for a client the paper describes the QoS Resource Allocation Client for CASP and discusses requirements for extending CASP to include interdomain signaling.. The discovery of next peers along the data path is handled by the Scout protocol, which is a specialized client protocol. Some of the basic mechanisms are derived from existing protocols. This way the design of this protocol relies on the experiences made in this area and is therefore one of the promising protocol candidates for the IETF NSIS WG.

  • Mobility support for next-generation Internet signaling protocols
    2003 IEEE 58th Vehicular Technology Conference. VTC 2003-Fall (IEEE Cat. No.03CH37484), 2003
    Co-Authors: Xiaoming Fu, Henning Schulzrinne, Hannes Tschofenig
    Abstract:

    Internet signaling protocols establish, maintain and remove state along the data path. Next-generation signaling protocols design must meet the scaling requirements imposed by the various tasks of the Internet signaling applications, such as resource reservation and middlebox configuration, and to meet the demand for general functionality in signaling protocols, including strong security, reliability, congestion control, support for various signaling purposes and message sizes, and efficient support for mobility. This paper presents a generic signaling architecture, the cross-application signaling protocol (CASP) and describes how it supports efficient and secure signaling in IP mobility scenarios. In this approach, the signaling functionality is splitted into two Layers: a generic Messaging Layer which provides the generic functionality for message delivery, and a client Layer consisting of a next-hop discovery client and any number of client protocols which perform the actual signaling tasks. The essential mechanisms required to support mobility are: (1) a session identifier uniquely selected by the initiator and effective discovery of the cross-over node; (2) a branch identifier incrementally assigned for the new branch and efficient release of state in the abandoned branch; (3) ensuring discovery messages are delivered exactly following the path that mobile IP packets are encapsulated; and (4) effective hop-by-hop authentication and re-authorization provided by the Messaging Layer, non hop-by-hop security for signaling clients and denial-of-service protection in the discovery client.

Zhang Xiong - One of the best experts on this subject based on the ideXlab platform.

  • Research on lightweight RFID Reader Protocol
    2008 First IEEE International Conference on Ubi-Media Computing, 2008
    Co-Authors: Yuanxin Ouyang, Ting Zhang, Zhang Xiong
    Abstract:

    Radio frequency identification (RFID) is a kind of widely used contactless automatic recognition technology. Large-scale deployment of RFID readers and tags provides a very good hardware foundation for ubiquitous computing. A typical RFID system is usually composed of four parts: tag, RFID reader, RFID middleware and application system. To make the RFID reader integration uniform and effective, and meet the low calculation requirement of low-cost readers, a lightweight RFID reader protocol is presented. Considering the EPC standard has become a virtual standard of RFID system due to its rapid development, to meet the demand of EPC reader protocol standard (RPS), the presented protocol is specified in three Layers, respectively the reader Layer, the Messaging Layer and the transport Layer. Differ from EPC RPS, in which different Messaging/Transport Bindings provide for different kinds of transport, the Messaging Layer and the Transport Layer are no longer designed to be working in pairs. Fieldbus technologies (especially PROFIBUS) are used for reference in the implementation of the transport Layer.

  • ICDE Workshops - RFIDPROBUS: A universal RFID reader communication protocol
    2008 IEEE 24th International Conference on Data Engineering Workshop, 2008
    Co-Authors: Yuanxin Ouyang, Ting Zhang, Zhang Xiong
    Abstract:

    To make the RFID reader integration uniform and effective, a universal RFID reader communication protocol named RFIDPROBUS is presented. This protocol can be applied to the RFID middleware or application, the collection nodes and the central control system. It is lightweight and can be easily deployed and expanded. To meet the demand of EPC Reader Protocol Standard, RFIDPROBUS is specified in three Layers. The Reader Layer defines the content and abstract syntax format of the exchange information between readers and the host, as well as the operations performed by the readers. The Messaging Layer defines the medium data format by Backus-Naur Form. The Transport Layer offers basic transportation service for the upper Layer.

Jing Qian - One of the best experts on this subject based on the ideXlab platform.

  • A scheme for reliable real-time Messaging with bounded delays
    Software - Practice and Experience, 2011
    Co-Authors: Jing Qian, Zhen Zhang, Qian Zhou, Kyung-deok Moon, Jun-hee Park, Kwang-roh Park
    Abstract:

    SUMMARY Network-based real-time computing applications that require tightly bounded end-to-end delays have been increasing at a steady rate in recent years. A Messaging Layer that yields tight bounds on the latencies in detecting message losses and enables the application Layer to initiate a timely recovery action has thus become highly desirable. In this paper, we present a new reliable real-time Messaging scheme called the Delay-Bounded Reliable Messaging Scheme (DB-RMS) that is aimed at meeting such requirements. It is built on top of the User Datagram Protocol sub-Layer. DB-RMS provides multiple service options, each with different fault detection/recovery capabilities and different costs in terms of the execution overhead. This feature makes DB-RMS suitable for a variety of applications. In this paper, the DB-RMS service options and the corresponding support protocols are presented first followed by a formal analysis on the detection and reaction latency bounds under various service options. A Messaging Layer prototype using DB-RMS has been implemented. To demonstrate the practice of the DB-RMS, we implemented a clock synchronization algorithm for 802.11 wireless local area networks on top of the DB-RMS Messaging Layer. Performance measurements of the prototype implementation have been taken, and the positive results obtained are also presented. Copyright © 2011 John Wiley & Sons, Ltd.

  • ISORC - A Scheme for Reliable Real-Time Messaging with Bounded Delays
    2010 13th IEEE International Symposium on Object Component Service-Oriented Real-Time Distributed Computing, 2010
    Co-Authors: Jing Qian, Zhen Zhang, Qian Zhou, Kyung-deok Moon, Jun-hee Park, Kwang-roh Park
    Abstract:

    Network-based real-time computing applications which require tightly bounded end-to-end delays have been increasing at a steady rate in recent years. A Messaging Layer that yields tight bounds on the latencies in detecting message losses and enables the application Layer to initiate a timely recovery action has thus become highly desirable. In this paper we present a new reliable real-time Messaging scheme called the Delay-Bounded Reliable Messaging Scheme (DB-RMS) that is aimed at meeting such requirements. It is built on top of the UDP sub-Layer. DB-RMS provides multiple service options, each with different fault detection/recovery capabilities and different costs in terms of the execution overhead. This feature makes DB-RMS suitable for a variety of applications. The service options and the corresponding support protocols are presented first, followed by a formal analysis on the detection and reaction latency bounds under various service options. A Messaging Layer prototype using DB-RMS has been implemented. Performance measurements of the prototype implementation have been taken and the positive results obtained are also presented.