On Sun, 19 Feb 2012 17:08:25 +0100 Florian Weimer <[email protected]> wrote:
> * Saqib Ali: > > > Can somebody explain me how this so-called Homomorphic split-key > > encryption works? > > Isn't this just a protocal which performs a cryptographic primitive > using split key material, without actually recombining the keys? > (Traditional Shamir secret sharing needs a trust party for key > recombination.) > > If yes, you might want to look for "RSA Threshold Cryptography" and > similar work. What is the point of introducing homomorphic encryption here? When last I checked, we were still pretty far from practical FHE systems, and we have not really determined the appropriate security parameters for the systems we are aware of now. It is telling that the company in the link provides few details about their system, except so say that homomorphic encryption is something they plan to deploy in the future. Maybe they are talking about oblivious AES from garbled circuits, although I am not really sure what the advantage of such a thing might be. -- Ben -- Benjamin R Kreuter UVA Computer Science [email protected] KK4FJZ -- "If large numbers of people are interested in freedom of speech, there will be freedom of speech, even if the law forbids it; if public opinion is sluggish, inconvenient minorities will be persecuted, even if laws exist to protect them." - George Orwell
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