Add support for SHA-256 and SHA-512/256 algorithms (RFC 7616)

[danielmunoz]

RFC 7616 from September 2015 about HTTP Digest Access Authentication adds support for two new algorithms, SHA2-256 as mandatory and SHA2-512/256 as a backup, and defines the proper algorithm negotiation.

Does this project have support for SHA-256 and SHA-512/256 algorithms?

Does this project implement RFC 7616 or the original RFC 2617 from June 1999?

If not, it is planned to implement RFC 7616? Will be pull requests accepted?

[flakey-bit]

Hi,

Sorry I missed your message.

Currently only MD5 is supported. I think so far this project largely only implements the first RFC.

I think we could add the algorithm negotiation and support for SHA algos. Would happily accept a PR so long as there's test coverage and existing example projects are unaffected.

I won't be implementing it myself, but can answer questions.