In protocol design, perfection has been reached not when there is nothing left to add, but when there is nothing left to take away.

— The Twelve Networking Truths, Ross Callon; RFC 1925

Welcome to my web site - my name is Hagen Paul Pfeifer. I am Senior Development Expert for Network Protocol Software. You can use your sweathearted search engine of choice to search for additional information about me. The about site lists profound information about me. The talks site collects some presentations I held over the years and finally the blog site collects posts that I wrote occasionally.

You can write me an email. But note that I prefer encrypted/signed email:

  • Key Id: 98350C22 [FullID: 4A228D4598350C22]
  • Key Fingerprint: 490F 557B 6C48 6D7E 5706 2EA2 4A22 8D45 9835 0C22

For chat (XMPP also known as Jabber):

  • OTR Fingerprint: 394241E1 2EBB9FBD E11C222E 04B28D3E A7BB0350

Disclaimer: this is a private web site. Content here do not reflect any opinions from my employer or organisations where I am involved.