Should xmlseclibs be updated to stay in line with the requirements of php-saml 3.5.0?

[TombLL]

Hi, we were having issues on a wp-site using this plugin due to the fact that the IDP is using AES-128-GCM as their encryption algorithm. Support for that algorithm has been added in xmlseclib version 3.1.0: (https://github.com/robrichards/xmlseclibs/releases/tag/3.1.0).

I checked the dependencies on this module and found that the xmlseclib included in onelogin-saml-sso/php/extlib/xmlseclibs/ (version 3.0.4) is not in line with what php-saml version 3.5.0 is requiring in its composer file: (https://github.com/onelogin/php-saml/blob/3.5.0/composer.json). (xmlseclib >= version 3.1.1).

I tried simply replacing the contents of the extlib/xmlseclibs/ with the source of the 3.1.1 version, but this did not completely solve our issue. It seems the error message is raised from the xmlseclibs library, so I don't expect an answer on that here. As I am unfamiliar with this library's code, I thought that perhaps there is something else that needs to be adjusted to account for the new version of xmlseclibs.

Got error 'PHP message: PHP Fatal error: Uncaught Exception: Key must contain at least 25 characters for this cipher in <redacted>/public_html/wp-content/plugins/onelogin-saml-sso/php/extlib/xmlseclibs/src/XMLSecurityKey.php:378
Stack trace:\n#0 /home/<redacted>/public_html/wp-content/plugins/onelogin-saml-sso/php/lib/Saml2/Response.php(1159): RobRichards\\XMLSecLibs\\XMLSecurityKey->loadKey(<long sequence of unicode chars in the format \\xZZ>...

Does anybody have ideas on this?

[pitbulk]

xmlseclibs 3.1.0 had a bug that was fixed in 3.1.1

I agree xmlseclibs must be updated here on ths plugin in order to support AES-128-GCM

I had not tested yet deeply the AES-128-GCM support on php-saml that why I have not actively updated all the plugins depends on it.

@TombLL, Is the source code of xmlseclibs 3.1.1 failing in your WP? I guess you used 3.1.0 which does not have the patch.
Can you confirm with the 3.1.1 works so I can update the WP plugin with the xmlseclibs code?