CloudFlare is working on a proposal to restrict CAPTCHAs for Tor users




CloudFlare, which provides various Internet services, is working on a way to Tor users to solve CAPTCHAs less. That CEO Matthew CloudFlare Price confirms to the website Motherboard.

Tor fpa Users of the anonymous Tor browser currently get to see much captcha’s because CloudFlare these users a high risk score assigns . This occurs because a lot of traffic from the Tor network is malicious, such as movement of spammers and bots. Motherboard discovered that a new project is on the CloudFlare GitHub page created , which include the number of CAPTCHAs must be reduced. The solution works to be able to add the hand of a plug-in, which users to the Tor-browser.

On the page describing the developer of the plug-in that many captchas are dependent on JavaScript, which is generally eliminated in the Tor browser. Thereby encounter users with more complex CAPTCHAs, which already has been labeled as a form of censorship in the past. Moreover, there is placed a cookie after successfully solving the captcha, which could identify CloudFlare individual users.

The plug-in must tackle this problem by placing all JavaScript in a browser extension. This would examine simplify the code are, ask the authors. Tor users with the plug-in would be the first captcha yet to resolve, but subsequent tests are processed by the extension. This is done on the basis of a number of bypass tokens, which the user acquires by dissolving the first captcha. The number of tokens would be sufficient to visit web pages, but too low to, for example, to carry out an attack. The tokens are signed by blindly signing .

This solution must be also be used according to CloudFlare by other “egde providers’. CloudFlare CEO Price opposes Motherboard that he could give no further details about the project at this time.


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