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Re: Solving the Zooko Triangle through biometric linked DIDs and DID Documents -- Nathan Aw from Singapore

From: Christopher Lemmer Webber <cwebber@dustycloud.org>
Date: Fri, 16 Nov 2018 16:46:22 -0500
To: Nathan Aw <nathan.mk.aw@gmail.com>
Cc: indy@lists.hyperledger.org, W3C Credentials CG <public-credentials@w3.org>
Message-ID: <87muq8elw1.fsf@dustycloud.org>
We can't "solve" Zooko's triangle, but we can add a layer to get all the
pieces we want.  I still think petnames is the right approach, but let's
examine whether or not adding biometric identity closes things up.

 - DIDs choose globally unique and decentralized/secure, skipping human
 - So the thing we need to layer on appears to be human meaningful

In this vein, I don't see how biometric identity closes the loop.  If I
want to know how to refer to you, I don't see how your DNA, which is a
decentralized but not generally secure and questionably globally unique
(see cases of police 3d printing fingerprints in silicone) bridges over
to human meaningful.  It questionably adds a bit more to those layers.
Even having a record of what your eyes look like or what DNA you have
doesn't help me map my idea of Nathan Aw over to which DID you have...
I also don't have a mapping of my concept of you to your DNA or
fingerprints.  So I don't personally see that bridge crossed over in the
way that eg a petnames database does so.

Nathan Aw writes:

> Hi Friends at Indy/w3c,
> I figured that one of the key, perhaps the key, to solving the zooko
> triangle theorem/challenge/riddle is to leverage biometric
> (retina+fingerprint).
> If there is some way to seamlessly onboard, associate and bind one's DID,
> DID Documents and Biometric data (stored in offchain in secure enclaves,
> perhaps?), the zooko triangle gordian knot can indeed be solved.
> To-Be Transaction Flow:
> 1. Use Biometric to access to this market place app
> 2. Fetches all the claims associated with one's biometric identity
> 3. Apply jobs, makes purchases seamlessly with the proofs happening behind
> the scene.
> Through this, we obviate the need for users to remember lengthy usernames/
> passwords, etc thus achieving the goals of human meaningfulness,
> decentralization and security.
> Is this something that is achievable?
> Am keen to work with anyone on this.
> Thank you.
> Regards,
> Nathan Aw
> https://sg.linkedin.com/in/awnathan
> https://www.hyperledger.org/community/technical-ambassador
> http://www.nasdaq.com/article/guest-post-understanding-the-limits-and-potential-of-blockchain-technology-cm874892
> https://www.hyperledger.org/blog/2017/12/05/developer-showcase-series-nathan-aw-ntt-data
> https://bitcoinmagazine.com/authors/nathan-aw/
> https://twitter.com/Hyperledger/status/938105092644974594
> https://www.hyperledger.org/blog/2018/07/24/hyperledger-sawtooth-seth-and-truffle-101
> https://www.hyperledger.org/persons/nathan-aw
> https://github.com/nathanawmk
> https://erc725alliance.org/
Received on Friday, 16 November 2018 21:46:46 UTC

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