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Umbral: a cryptosystem for private data sharing in public consensus networks

15 pointsby mwilkisonabout 7 years ago

3 comments

jMylesabout 7 years ago
Hey HN friends. I too have worked on (and will probably keep working on) this project. It&#x27;s pretty wild! There are two things about it that I think you&#x27;ll like:<p>1) (the obvious) - it allows a user to share a secret with a third party (the &quot;proxy&quot;) who, without being able to read it, can then share it with another person. For the purposes of narrating this, we expand &quot;Alice - Bob&quot; to &quot;Alice - Ursula - Bob&quot;. Kinda cool.<p>2) We have introduced a couple of interesting turns of phrase. For example, we &quot;encapsulate&quot; a key (a very common practice), but in so doing, we say that the key in inside a &quot;Capsule&quot;. I&#x27;ve never seen this object called a Capsule before, but it makes a good deal of sense - Bob brings a Capsule to Ursula and asks for her help &quot;opening&quot; (ie, decapsulating) it.<p>I think that we&#x27;ve made some interesting if modest motions forward in the modeling and naming that is required for distributed proxy re-encryption, and I&#x27;m curious to know if y&#x27;all think so too.
dillonraphaelabout 7 years ago
The foundation for a great crypto project. Few are making products that push the development of the ecosystem. Excited for the launch on testnet.
tuxxyabout 7 years ago
Hey, folks! I&#x27;m a cryptographic engineer at NuCypher and this is a pretty big release for us. I&#x27;m happy to answer any questions about this!