Don't use harcoded digest for non-group key exchanges

[twisted-trac]

	@adiroiban reported
Trac ID	trac#10203
Type	enhancement
Created	2021-05-24 19:20:15Z

Right now conch uses SHA1 for non-group key exchanges.

It should use _kex.getHashProcessor(self.kexAlg)() to allow for SHA2 KEX.

For example to support the algorightms from #10202 ​https://datatracker.ietf.org/doc/html/rfc8268

Searchable metadata

trac-id__10203 10203
type__enhancement enhancement
reporter__adiroiban adiroiban
priority__normal normal
milestone__None None
branch__ 
branch_author__ 
status__closed closed
resolution__fixed fixed
component__conch conch
keywords__None None
time__1621884015663991 1621884015663991
changetime__1621897381277337 1621897381277337
version__None None
owner__adiroiban1 adiroiban1

[twisted-trac]

	@adiroiban commented

pr #1603

[twisted-trac]

	@twm set owner to adiroiban1

Approved, thank you! #1603 (review)

[twisted-trac]

	@adiroiban set status to closed

In changeset da61086

#!CommitTicketReference repository="" revision="da61086f167ce2096ad0652faecb6ba87f8caed8"
Merge pull request #1603 from twisted/10203-fixed-group-kex-sha

[#10203] Use KEX registry to get digest algorithm for non-group KEX algorithms.

Author: adiroiban
Reviewer:  twm
Fixes: ticket:10203

Use KEX registry to get digest algorithm for non-group KEX algorithms.