It would be appreciated and useful to have a mechanism within AHC to handle Digest Auth

[Diggory]

Issue

Some HTTP requests require authentication. Basic auth is easy for the user to implement, but rarely used (I assume). More frequently, Digest authentication is required.

Digest Auth is more complex to implement and it would be useful for users of the package if it provided an implementation for this form of authentication. (This may require a dependency upon swift-crypto due to use of MD5 hashing.)

[Lukasa]

Yeah, this is a reasonable feature request.