A Quick Look at QUIC Censorship

This article is an introduction to QUIC and its potential for censorship resistance, as well as a survey of current QUIC blocking in various countries. The presented findings reveal QUIC censorship in China, India, Russia and Uganda.

Resource Type:
Research Reports, Working Paper

As QUIC usage increases, it has become the target of censorship efforts. From the perspective of censors, the emergence of QUIC and HTTP/3 means two things:

  • HTTP/3 web traffic looks differently to firewalls, such that censors need to deploy new strategies to detect it.

  • QUIC is better protected by encryption. QUIC encryption hides not only the details of the communication but also most of the connection metadata from observers.

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Keywords
QUIC

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