How can I enable/disable Secure Token
A secure token has four main functions.
1. Secure Token allows you to generate secured links with expiration time.
2. Secured links provide content only within desired period and only to visitors having the links with the secure hash.
3. It is not possible to download secured content without valid (not expired) hash from the CDN resource.
4. After the expiration time the links are unavailable and new ones must be generated in order to download the secured content again.
To enable the secure token option just click on the option inside Access Protection section, when you select the CDN Resource.
If you plan on enabling the Secure Token you will then need to correctly generate the URLs to access your files through the CDN. Instructions regarding how to generate the secure links can be found in the article on Signed URLs.