[cryptography] Homomorphic split-key encryption OR snake oil crypto

Florian Weimer fw at deneb.enyo.de
Sun Feb 19 11:08:25 EST 2012

* 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

If yes, you might want to look for "RSA Threshold Cryptography" and
similar work.

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