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Efficient transmission of cryptographic information in secure real time protocol

A real-time protocol, security technology, applied in the field of efficient transmission of encrypted information, can solve the problem of wasting useful bandwidth and so on

Inactive Publication Date: 2007-05-30
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, SRTP requires MKI information to be sent with every packet, or no MKI information is sent with any packet, thus wasting useful bandwidth

Method used

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  • Efficient transmission of cryptographic information in secure real time protocol
  • Efficient transmission of cryptographic information in secure real time protocol
  • Efficient transmission of cryptographic information in secure real time protocol

Examples

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Embodiment Construction

[0020] The detailed description provided below in conjunction with the accompanying drawings is intended to illustrate various embodiments of the present invention, and does not represent the only embodiment in which the present invention can be practiced. The detailed description includes specific details to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the invention.

[0021] FIG. 1 is a functional block diagram showing an example of transmitting and receiving terminals in a communication system. The transmitting and receiving terminals 102 and 104 can be any suitable equipment capable of supporting SRTP multimedia applications, including wired and wireless phones, computers, notebook computers, personal digit...

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Abstract

Efficient transmission of cryptographic information in secure real time protocol. A transmitting terminal may be used to encrypt data with a session key derived from a bit-stream. The bit-stream may be sent with header information to the receiving terminal. To conserve bandwidth, the information may be divided into portions, and each portion transmitted with an encrypted data packet. The receiving terminal may be used to recover the bit-stream from the information portions in the packet headers, and use the bit-stream to derive the session key. The session key may be used to decrypt the data.

Description

[0001] cross reference [0002] This application claims priority to Provisional Application No. 60 / 554,331, filed March 18, 2004, entitled "Efficient Transmission of Encrypted Information Using Secure Real-Time Protocol," the contents of which are hereby incorporated by reference, As fully set forth herein. technical field [0003] The present disclosure relates generally to the security of data processing systems and, in particular, to the efficient transmission of encrypted information using secure real-time protocols. Background technique [0004] Real Time Protocol (RTP: Real Time Protocol) is an Internet protocol standard for real-time transmission of multimedia data. Currently, RTP supports a large number of multimedia applications, including, for example, multicast and unicast network services. Multicast network services generally involve the transmission of multimedia from a content provider to any number of distributed users. Unicast network services typically in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/32H04L9/00H04L29/06
CPCH04L9/32H04L63/0428H04L9/08H04L9/0894H04L2209/20H04L9/14
Inventor 格雷戈里·戈登·罗斯徐大生
Owner QUALCOMM INC