Example implementations of MD5 based hash authentication for client requests on BelugaCDN.com.
Once Token Authentication has been enabled client requests require a "hash" as part of the URL. The hash is computed based on the requested URL and a secret key.
Example of a request without a hash:
curl -I 'http://test.belugacdn.com/test-video.mp4'
HTTP/1.1 401 Unauthorized
Generate the hash of the requested URL using the provided PHP / Python / Node.js example:
> php md5-authentication.php http://test.belugacdn.com/test-video.mp4
http://test.belugacdn.com/test-video.mp4?expires=1425631400&token=5a8a5f4576ce8878c27747d844321a5a
> python md5-authentication.py http://test.belugacdn.com/test-video.mp4
http://test.belugacdn.com/test-video.mp4?expires=1425631400&token=5a8a5f4576ce8878c27747d844321a5a
> npm install crypto
> node md5-authentication.js http://test.belugacdn.com/test-video.mp4
http://test.belugacdn.com/test-video.mp4?token=c0764444ee927106bd19761d8ca22163&expires=1492941835
Example of a valid request:
> curl -I 'http://test.belugacdn.com/test-video.mp4?expires=1425631400&token=5a8a5f4576ce8878c27747d844321a5a'
HTTP/1.1 200 OK