I think public key encryption with long enough key is a pretty safe bet these days. Of course, NSA might have new non-public discoveries in math/crypto that mig

I think public key encryption with long enough key is a pretty safe bet these days. Of course, NSA might have new non-public discoveries in math/crypto that might make public encryption obsolete. Or they might have a device form Area 51 that breaks any encryption. However, I haven't seen any evidences of this yet.