Kurt Zeilenga Application 2009

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My name is Kurt Zeilenga and I'm re-applying for XSF membership.

Contact Information:



I've been developing Internet software for a couple of decades now. In 1998, I founded the OpenLDAP Project and served as its Chief Architect until 2007 when I decided it was time to do something new (to me). I continue to advise the project.

I've been active in the Internet Engineering Task Force since 1998, mostly in areas of Directory Services and Internet Security. I've authored/edited numerous RFCs and co-chaired the LDAP Revision (LDAPbis) WG (now concluded). I currently co-chairing the Simple Authentication and Security Layer (SASL) and vCard and CardDAV working groups.

I work full time for Isode Limited as Internet standards and technology engineer.

XMPP Projects


I am currently implementing edge processing capabilities (presence folding, malware scanning, etc.) in Isode's M-Link product.


I am the author of "Security Labels in XMPP" (XEP258) and "Design Considerations for Digital Signatures in XMPP" (XEP274).

Plans for the future

I hope to develop/standardize more general-use XMPP security capabilities, such as Digital SIgnatures in XMPP.

XMPP - Why I like it

I came to XMPP because I was interested in doing something new (to me) and I like it because I've found lots of interesting things to do.

Why I'm re-applying

I am re-applying for XSF membership as I'd like to continue to help guide the organization behind XMPP standardization. I very much like the open community approach to XMPP standardization.