> Indeed: http://www.daemonology.net/hyperthreading-considered-harmful/
Yikes. That's very disturbing. I'm glad you posted that. It's not hard to imagine a malicious process discovering things other than cryptographic keys. Just off the top of my head, hash tables don't usually use cryptographically secure hash functions, so if you can infer the memory access patterns of a program using hash tables you might be able to infer something about the data it's dealing with.
