The Nineteenth International Workshop on Security Protocols will take place from Monday March 28th to Wednesday March 30th, 2011 at Sidney Sussex College, Cambridge, England.

As with previous years, attendance at the International Workshop on Security Protocols is by invitation only.
In order to be invited you must submit a position paper. You are therefore encouraged to consider submitting such a paper.

Theme:

The theme of this year's workshop is "Alice doesn't live here anymore".
- sometimes location is important
- sometimes it isn't identity that we want, it's the 'postholder'
- sometimes artifacts outlive their authors
- sometimes Alice has changed beyond recognition
- sometimes there never was any Alice after all
The theme itself is not intended to restrict the topic of your paper, but to help provide a particular perspective and to focus the discussions. Our intention is to stimulate discussion likely to lead to conceptual advances, or to promising new lines of investigation, rather than merely to consider finished work.