In Canada, Waterloo is head and shoulders above the rest for almost anything. Ian Goldberg teaches there now, so there's at least one world-class security researcher. I believe there are plenty of startups in the area, but I don't have first-hand knowledge. I can tell you that a Waterloo degree is looked on very favorably at Microsoft, Google, and Yahoo. In Vancouver, your picks are UBC or Simon Fraser University. I…
Cryptography, Security and Privacy research group at Waterloo: http://crysp.uwaterloo.ca/
I had no idea that Waterloo was so into security research. I'm pleasantly surprised to see that some of the people in the department help develop OTR, which I've been using for just over a year (it was especially comforting while I was studying in China). As it stands now, Waterloo is at the top of my list of places I'll apply for grad school. Thanks for the great recommendation!