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Information transmission method and device

A technology for information transmission and feature information, applied in transmission systems, electrical components, etc., to solve problems such as insufficient consideration of DDoS protection

Active Publication Date: 2021-10-29
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The QUIC protocol and its implementation itself do not fully consider DDoS protection. When the server device that provides services communicates with the client device through the QUIC protocol, the server device faces serious security risks.

Method used

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  • Information transmission method and device
  • Information transmission method and device

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Embodiment Construction

[0013] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0014] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0015] Please refer to figure 1 , which illustrates an exemplary system architecture suitable for implementing embodiments of the present application.

[0016] Such as figure 1 As shown, the system architecture includes a client device, a proxy device, and a server device....

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Abstract

The embodiment of the present application discloses an information transmission method and device. A specific implementation of the method includes: the proxy device receives the information sent by the client device, and the information sent by the client device is information defined in the QUIC protocol; The verification operation is to obtain a verification result corresponding to the verification associated information, and execute an operation associated with the verification result. The proxy device receives the information to be sent from the client device to the server device, and performs corresponding verifications associated with DDoS attacks at each stage of the QUIC protocol communication between the client device and the server device, and detects illegal QUIC handshake messages, Illegal QUIC packets such as illegal encrypted packets ensure that only legal QUIC packets are sent to the server-side device for processing, and illegal QUIC packets are not sent to the server-side device, thereby defending against DDoS attacks.

Description

technical field [0001] The present application relates to the field of computers, specifically to the field of network security, and in particular to an information transmission method and device. Background technique [0002] QUIC (Quick UDP Internet Connection) is a UDP-based low-latency Internet transport layer protocol. The QUIC protocol and its implementation itself do not fully consider DDoS protection. When the service-end device and the client device communicate through the QUIC protocol, the server device faces serious security risks. Contents of the invention [0003] Embodiments of the present application provide an information transmission method and device. [0004] In the first aspect, the embodiment of the present application provides an information transmission method. The method includes: the proxy device receives the information sent by the client device, and the information sent by the client device is the information defined in the QUIC protocol; Veri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/0236H04L63/1416H04L63/1458
Inventor 杨梅芳吴教仁郭启行
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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