Secure Link Md5 Implementation

[anish10dec]

Thanks 

But what about the next part when actually we are in production and if there
is need for change of secret Key on Nginx.

" Is there a way to implement the token authentication with two secret key
i.e primary and secondary 
So that If the first one did not work, then try the second one. 
This would be helpful while changing the Secret Key in production so that
some user will be allowed with old secret and some with new secret whose
client has been updated."

Regards,
Anish

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,275668,275685#msg-275685