I released WSS4R:
WSS4R is a subset of a web service security standards implementation.
It’s based on soap4r and tested with Microsoft .NET WSE 2.0 and Sun Java
JWSDP 2.0. WSS4R supports username authentication, signing and
encryption. It also has limited support for actionwebservice / rails.
Currently, there is no documentation, but various examples for building
clients and servers with ruby and rails, java and C#. It is tested with
ruby 1.8.4, rails 1.0 and the latest soap4r release.
WSS4R is released unter the GPL.
Please mail bugs, suggestions and patches to Roland.Schmitt(at)web.de