Traffic obfuscation

4 articles in the Atlas on traffic obfuscation - What Is Hysteria2?; Obfuscation vs Encryption. Hysteria2 is a QUIC-based proxy built for lossy links. What its congestion…

4 articles

Part of Protocols & Privacy Technology · Search this topic

Protocols 9 min read

What Is Hysteria2?

Hysteria2 is a QUIC-based proxy built for lossy links. What its congestion control, HTTP/3 masquerade and obfuscation buy, and where each one stops.

Someone trying to be furtive using a black cape, and a hat, walking on the sidewalk around other people. Vintage comic art style.

Censorship & DPI 11 min read updated

Obfuscation vs Encryption

Encryption hides what you said. Obfuscation hides that you said it. Two independent axes with different failure modes, and most protocols carry only one.

Scene of the movie V for Vendetta, the hero V appears in front of a poster of the slogan of the totalitarian government.

Censorship & DPI 12 min read updated

What Makes a VPN Resistant to Censorship?

Censorship resistance is a property of six layers, from the bytes on the wire to the cloud provider, the CDN, and the response to a probe. Protocol is one of them.

SMPTE color bars with blurred CONNECTION LOST message on it

Censorship & DPI 11 min read

Why a VPN Can Work Today and Fail Tomorrow

A tunnel that worked yesterday can stop working with no change on your side. The documented record shows four distinct causes, and only one of them is the censor.