https://en.wikipedia.org/wiki/Digest_access_authentication The “response” value is calculated in three steps, as follows. Where values are combined, theyare delimited by colon symbols.

Digest Authentication is a security mechanism that allows a client application to authenticate itself to the server by sending a message digest along with its HTTP request. The digest is generated by applying a one-way hash algorithm to a combination of the HTTP request message and the client’s password. A typical digest authentication process includes the following steps: Step 1: …