Re:Umbral: a cryptosystem for private data sharing in public...
by jMyles on Wednesday March 21, 2018 @12:47PM
(#16639892)
Hey HN friends. I too have worked on (and will probably keep working on) this project. It's pretty wild! There are two things about it that I think you'll like:
1) (the obvious) - it allows a user to share a secret with a third party (the "proxy") who, without being able to read it, can then share it with another person. For the purposes of narrating this, we expand "Alice - Bob" to "Alice - Ursula - Bob". Kinda cool.
2) We have introduced a couple of interesting turns of phrase. For example, we "encapsulate" a key (a very common practice), but in so doing, we say that the key in inside a "Capsule". I'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 "opening" (ie, decapsulating) it.
I think that we've made some interesting if modest motions forward in the modeling and naming that is required for distributed proxy re-encryption, and I'm curious to know if y'all think so too.
1) (the obvious) - it allows a user to share a secret with a third party (the "proxy") who, without being able to read it, can then share it with another person. For the purposes of narrating this, we expand "Alice - Bob" to "Alice - Ursula - Bob". Kinda cool.
2) We have introduced a couple of interesting turns of phrase. For example, we "encapsulate" a key (a very common practice), but in so doing, we say that the key in inside a "Capsule". I'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 "opening" (ie, decapsulating) it.
I think that we've made some interesting if modest motions forward in the modeling and naming that is required for distributed proxy re-encryption, and I'm curious to know if y'all think so too.