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I have an 8gb truecrypt file on dropbox, pretty much regardless of what they're compelled to do, it's secure. That's the model I think should be standard for cl

I have an 8gb truecrypt file on dropbox, pretty much regardless of what they're compelled to do, it's secure. That's the model I think should be standard for cloud ops. However, you do bring up an interesting point, it is indeed harder to do "useful stuff" when the store is untrusted and has no idea what it's holding, string searches et al become pretty much impossible generally speaking, big bummer there. Perhaps this will be a good accelerant for the adoption of homomorphic encryption algorithms?

plywoodtrees 13y ago
'Visions of a fully homomorphic cryptosystem have been dancing in cryptographers' heads for thirty years. I never expected to see one. It will be years before a sufficient number of cryptographers examine the algorithm that we can have any confidence that the scheme is secure.' -- Bruce Schneier Even without PRISM, the rise of cloud computing is a strong incentive for people to try to develop practical homomorphic encryption. Until there's a practical algorithm adoption will be limited.