Anonymous Video on Demand

[Perry E. Metzger]

Jim Miller says:
> As I think about it more, the "anonymous video on demand" problem can be  
> solved with an oblivious transfer protocol.

I thought this was impossible, but you've shown a really neat trick
for doing it -- congratulations. I'll go off and eat my hat now -- I
never thought about the possibility of the vendor not knowing which of
100 keys would actually work!

Perry