I noticed a Stanford project for setting up browser-based, ephemeral Tor proxies. In their words, "the purpose of this project is to create many, generally ephemeral bridge IP addresses, with the goal of outpacing a censor's ability to block them."
The core idea is that volunteers outside a filtered region can embed an "Internet Freedom" badge on their web pages. Visitors browsing from outside a filtered region can become short-lived proxies that relay traffic to and from the filtered region. When visitors navigate away from a volunteer page, the proxy disappears. https://crypto.stanford.edu/flashproxy/ https://crypto.stanford.edu/flashproxy/flashproxy.pdf Note that "flash" is not a reference to Adobe Flash. It's based on Websockets and Javascript. Also, I am not endorsing this technology for real-world use yet nor can attest to its security. I haven't looked at it in enough detail yet.
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