Updated: gsasl, libgsasl{7,-common,-devel,-doc} 1.10

Cygwin gsasl Maintainer Brian.Inglis@SystematicSW.ab.ca
Sun Aug 7 06:32:38 GMT 2022

The following packages have been upgraded in Cygwin:

* gsasl			1.10
* libgsasl7		1.10
* libgsasl-common	1.10
* libgsasl-devel	1.10
* libgsasl-doc		1.10

GNU SASL is an implementation of the Simple Authentication and Security
Layer (SASL) framework, consisting of a library with several plugins,
and command-line application.

For more information see the project home page:


See below or read /usr/share/doc/{,lib}gsasl/NEWS after installation for
a summary of changes since the last Cygwin release, or read
/usr/share/doc/{,lib}gsasl/ChangeLog after installation for details.

As no issues were seen or reported with this test package, it will be
upgraded to current stable.

Version 1.10.0 (released 2021-01-01) [stable]

This is a new major stable release.  Brief changes compared to 1.8.x:

* SCRAM-SHA-256 and SCRAM-SHA-256-PLUS support per RFC 7677.

* SCRAM supports password-less usage (StoredKey/ServerKey).

* New 'gsasl --mkpasswd' command to prepare SCRAM salted/hashed passwords.

* Final warning that obsolete APIs will be removed.

* Various cleanups, portability and other bug fixes.

Version 1.9.3 (released 2021-01-01) [beta]

* Fix build/portability problems. GnuTLS >= 3.4 is required.

Version 1.9.2 (released 2020-12-24) [beta]

* gsasl: Don't abort command on some expected TLS events (for TLS 1.3).

* gsasl: The --mkpasswd output format follows Dovecot 'doveadm pw'.

* gsasl: Use GnuTLS system trust settings by default for X.509 server
  certificate validation.
  Before it was documented behaviour that unless --x509-ca-file was
  used, no verification of the server-side certificate was performed.
  Now instead it will use the system trust settings, which on properly
  configured systems results in verification of the server certificate.
  As a result, you may now start to get server certificate verification
  errors in situations where you didn't expect them. Use --x509-ca-file
  with the empty string ("") as a file name to use the old behaviour to
  not abort on server certificate verification failures.

* SCRAM, GS2 and GSSAPI retrieve properties later in the authentication
  Before the property GSASL_CB_TLS_UNIQUE was retrieved during SCRAM
  gsasl_client_start() and gsasl_server_start(), and the properties
  gsasl_server_start(). Now they are retrieved during the first call to
  The only user-visible impact of this should be that 'gsasl
  --client-mechanisms' and 'gsasl --server-mechanisms' will now not
  query for parameters before giving a list of supported mechanisms,
  which arguably gives a better user experience. The downside of this
  is that SCRAM-*-PLUS, GS2 and GSSAPI may be advertised even though
  the server mechanism may not complete.
  The problem with calling callbacks in the start() function is that the
  callback will have no per-session context at that point, only a global
  context, so the only way to give per-session unique callback responses
  is to use a separate global handle per session. This was discovered
  in the Exim implementation of gsasl with SCRAM that used to request
  the GSASL_CB_TLS_UNIQUE property in the start() function. After
  noticing this design issue, and writing this self test, it was
  discovered that it also happened for the GSSAPI/GS2 server (not
  client) mechanism for the GSASL_SERVICE and GSASL_HOSTNAME properties.

* Filenames of images in the manual are now prefixed with 'gsasl-'.
  This makes /usr/share/info more understandable, and it is suggested to
  do this in upstream.

* Build changes.
  Some more compiler warnings used and code fixed. Improved ./configure

Version 1.9.1 (released 2020-01-14) [beta]

* gsasl: New --mkpasswd argument to prepare salted/hashed passwords.
  Currently mechanisms SCRAM-SHA-1 and SCRAM-SHA-256 are supported.
  New parameter --iteration-count to indicate number of PBKDF2 rounds,
  default being 65536. New parameter --salt to specify PBKDF2 salt.

Version 1.9.0 (released 2020-01-03) [beta]

* Client and server support for SCRAM-SHA-256 and SCRAM-SHA-256-PLUS.

* gsasl: If PORT argument is "587" or "submission", SMTP mode is used.
  Further, unrecognized PORT arguments will now raise an error to
  specify --smtp or --imap.

Version 1.8.1 (released 2019-08-02) [stable]

* gsasl: IMAP client code now permits empty SASL tokens prefixed with '+'.
  Normally servers should send '+ '.  Buggy servers include Microsoft

* GSSAPI client: Now retrieves GSASL_AUTHZID for authorization identity.

* GSSAPI client: Can now transmit an empty/missing authorization identity.

* i18n: Updated translations.

* Build fixes.  Update of gnulib, including how it is bootstrapped.

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