[Users] [Bug 4685] New: Add support for SCRAM-SHA-{224, 256, 384, 512} authentication to IMAP

[noreply at thewildbeast.co.uk]

https://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=4685

            Bug ID: 4685
           Summary: Add support for SCRAM-SHA-{224,256,384,512}
                    authentication to IMAP
           Product: Claws Mail
           Version: GIT
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Folders/IMAP
          Assignee: users at lists.claws-mail.org
          Reporter: obi+claws-bugzilla at saftware.de

Created attachment 2341
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https://www.thewildbeast.co.uk/claws-mail/bugzilla/attachment.cgi?id=2341&action=edit
Patch implementing additional SCRAM authentication methods

Hi everyone!

The attached patch adds support for SCRAM-SHA-224, SCRAM-SHA-256, SCRAM-SHA-384
and SCRAM-SHA-512 to the IMAP client.

All these methods are supported by Cyrus IMAP, according to
https://github.com/scram-sasl/info/issues/1.

Dovecot supports SCRAM-SHA-256, which was used to test this patch successfully.

There are older Bugzilla entries about SCRAM, but they address more than what's
covered by this patch, i.e. support for more than IMAP or support for the -PLUS
variants.

Since SCRAM-SHA-1 was supported for IMAP already, adding these hashing
algorithms was pretty straight forward.

Best regards,
Andreas

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