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Systems, methods and media for retransmitting data using the secure real-time transport protocol

A technology for retransmitting data and media, applied in transmission systems, digital transmission systems, security communication devices, etc., can solve the problems of increasing processing delay of empty cells, increasing delay of receiving and retransmitting transition data units, increasing network traffic load, etc.

Active Publication Date: 2010-09-22
AVAYA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the jitter buffer increases the delay between receiving and retransmitting transitional data units
Additionally, sending empty cells that will eventually be discarded by the receiver adds processing latency and may increase network traffic load

Method used

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  • Systems, methods and media for retransmitting data using the secure real-time transport protocol
  • Systems, methods and media for retransmitting data using the secure real-time transport protocol
  • Systems, methods and media for retransmitting data using the secure real-time transport protocol

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Embodiment Construction

[0013] The present disclosure provides systems, methods and media for retransmitting data using SRTP. In certain embodiments of the disclosed subject matter, systems, methods, and media are provided for retransmitting data using SRTP by modifying the behavior of intermediate senders, such as proxies, switches, and MCUs. The SRTP standard does not provide any mechanism for intermediate senders to authenticate and / or process data units or detect and handle loss of data units. It only provides this mechanism for the receiving side. By augmenting certain functions of the receiver, the intermediate sender can receive, verify, process and retransmit the data unit to the receiver.

[0014] refer to figure 1 , system 100 includes SRTP network 102 , sender 104 , receiver 106 , proxy server 108 , converter 110 and multipoint conference unit (MCU) 112 .

[0015] SRTP network 102 may be a local area network (LAN), a wide area network (WAN), a wireless network, a cable network, the Inte...

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Abstract

Systems, methods, and media for retransmitting data using the SRTP are provided. In some embodiments, methods for retransmitting data using the SRTP are provided. The methods include: receiving at least one data unit associated with a media session; determining the index of the at least one data unit; determining the session key of the media session using the index; authenticating the at least one data unit using the session key; and retransmitting the at least one data unit.

Description

technical field [0001] The disclosed subject matter relates to systems, methods, and media for retransmitting data using Secure Real-time Transport Protocol (SRTP). Background technique [0002] SRTP is a real-time transport protocol (RTP) that can provide confidentiality, message authentication, and replay protection for RTP traffic by using one or more encrypted sessions to send and receive data over a network that supports RTP and Internet Protocol (IP). Profile. Replay protection refers to any mechanism that can detect and discard replay packets. A packet is said to be replayed when it is stored by an unauthorized entity and re-injected into the network at a later moment: packet replay is intended to compromise the integrity of confidential communications and / or network traffic A class of attacks on stability. [0003] The SRTP standard requires the sender to transmit data units such as cells or packets according to the correct time sequence by successively increasing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00
CPCH04L9/32H04L63/0464H04L2209/76
Inventor J·戴维斯M·扎克A·鲁迪特斯基T·莱文特-莱维
Owner AVAYA INC
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