challenge-bypass-extension

Ever heard of zero-knowledge proofs? CloudFlare claims to support Privacy Pass, which is supposed to use a zero-knowledge scheme to solve for this for Tor users. Unforunately, the integration has been broken for a very long time and bug reports aren't tended to. https://blog.cloudflare.com/cloudflare-supports-privacy-pass... https://privacypass.github.io/ https://github.com/privacypass/challenge-bypass-extension/is...

What happened to PrivacyPass? It seems to have stopped working completely when connecting over Tor several months back. I say this from having spent several hours trying to get it work on multiple devices with different OS/client software (chromium/FF), both with the store versions and bundling the extension from source. We did have it working mostly fine for some time back in 2021 but haven't been able to since. There are multiple open issues reporting this on the GH repo with no real follow-up from maintainers apart from maybe a "should be fixed, open again if still an issue". ie https://github.com/privacypass/challenge-bypass-extension/is...

The Privacy Pass server uses key rotation to make the tokens expire after a certain period of time. The documentation also hints at other measures including rate limiting and using a web application firewall: https://github.com/privacypass/challenge-bypass-extension/bl...

There are a couple of bugs[0][1] in Privacy Pass that causes spending tokens during collecting, thereby preventing collecting tokens. [0]: https://github.com/privacypass/challenge-bypass-extension/is... [1]: https://github.com/privacypass/challenge-bypass-extension/is...

For what it's worth, the extension is open source: https://github.com/privacypass/challenge-bypass-extension

Install the PrivacyPass Firefox or Chrome extension. It was developed by Cloudflare, Firefox, and Tor in partnership. It has you answer a ReCAPTCHA and using some crypto magic, generate a bunch of CAPTCHA bypass tokens that can't be traced to your specific computer. https://support.cloudflare.com/hc/en-us/articles/11500199265... https://blog.cloudflare.com/cloudflare-supports-privacy-pass... https://blog.cloudflare.com/privacy-pass-the-math/ https://github.com/privacypass/challenge-bypass-extension

I wish all Chromium plugins had such good plugin content overview, saves a lot of time if you want to review what you install. https://github.com/privacypass/challenge-bypass-extension