mirror of
https://github.com/xvzc/SpoofDPI.git
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55 lines
2.1 KiB
Markdown
55 lines
2.1 KiB
Markdown
# SpoofDPI
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A simple and fast software designed to bypass **Deep Packet Inspection**
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Read in other Languages: [English](https://github.com/xvzc/SpoofDPI), [한국어](https://github.com/xvzc/SpoofDPI/blob/main/readme_ko.md)
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# Dependencies
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- Go
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# Installation
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- With **go install**
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`$ go install github.com/xvzc/SpoofDPI/cmd/spoof-dpi`
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> Remember that $GOPATH variable should be set in your $PATH
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- Or you can build your own
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`$ git clone https://github.com/xvzc/SpoofDPI.git`
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`$ cd SpoofDPI`
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`$ go build ./cmd/...`
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# Run
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### OSX
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Run `$ spoof-dpi`
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### Linux
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Run `$ spoof-dpi` and open your favorite browser with proxy option
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`google-chrome --proxy-server="http://127.0.0.1:8080"`
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### Windows
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Use [GoodbyeDPI](https://github.com/ValdikSS/GoodbyeDPI) instead
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# Usage
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```
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Usage: spoof-dpi [options...]
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-dns=<addr> | default: 8.8.8.8
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-port=<port> | default: 8080
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```
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# How it works
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### HTTP
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Since most of websites in the world now support HTTPS, SpoofDPI doesn't bypass Deep Packet Inspections for HTTP requets, However It still serves proxy connection for all HTTP requests.
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### HTTPS
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Although TLS 1.3 encrypts every handshake process, the domain names are still shown as plaintext in the Client hello packet.
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In other words, when someone else looks on the packet, they can easily guess where the packet is headed to.
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The domain name can offer a significant information while DPI is being processed, and we can actually see that the connection is blocked right after sending Client hello packet.
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I had tried some ways to bypass this, and found out that it seemed like only the first chunk gets inspected when we send the Client hello packet splited in chunks.
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What SpoofDPI does to bypass this is to send the first 1 byte of a request to the server,
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and then send the rest.
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> SpoofDPI doesn't decrypt your HTTPS requests, and that's why we don't need the SSL certificates.
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# Inspirations
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[Green Tunnel](https://github.com/SadeghHayeri/GreenTunnel)
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[GoodbyeDPI](https://github.com/ValdikSS/GoodbyeDPI)
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