Interface

1. GET /question/qwerty returns a SVG picture with a question like 23+34. The question is derived from SHA1(qwerty). It's allowed to add ?foo=123 to the URL to force the browser to reload the picture. Example: https://comntr.live:2556/question/qwerty
2. GET /postmark/qwerty?answer=57 returns a ed25519 signature for SHA1(qwerty). If the response is 401, the answer is wrong. Example: https://comntr.live:2556/postmark/qwerty?answer=123
3. GET /keys returns ed25519 public keys with their expiration dates. Example: https://comntr.live:2556/keys

Build

npm start starts the service on port 2556.

Docs

https://comntr.github.com/comntr/webext/docs/captcha.md

License

TBD