A Modest Proposal--Ideas

I have several ideas; for example:

Social events for students, perhaps providing a special forum for students to meet and discuss research in a smaller and more casual setting.
Senior people give session overviews explaining (on, say, Sunday night before the conference begins) selected results which will be presented on Monday and Tuesday, along with a discussion of the relevant prior results. A student would then likely get a lot more from attending the conference talk.
Tutorials on popular topics which might not be the specialty of a student's advisor: block cipher design, protocols, voting schemes, multi-round computation, information theory, cryptanalysis, elliptic curves, quantum cryptography, and so on...
Workshops on doing research, finding faculty and industrial positions, giving talks, and so forth.

Of course, you can't do it all at a given conference, but even a subset would likely be useful to our student attendees.

If you have ideas you would like to see added to this list, send me an email.