RE: Building a did:key document with a publicKeyJwk

I believe what you are making in publicHexKeyToDIDKey is correct: convert your 
key to byte array, convert they byte array to base58 and prefix it with zru 
(the last part is done in lines 17,18)



You can also find some test vectors here



https://github.com/transmute-industries/did-key.js/tree/master/packages/test-vectors



Best,

Nikos



--

Nikos Fotiou -  <http://pages.cs.aueb.gr/~fotiou> 
http://pages.cs.aueb.gr/~fotiou

Researcher - Mobile Multimedia Laboratory

Athens University of Economics and Business

https://mm.aueb.gr





From: Brent Shambaugh <brent.shambaugh@gmail.com>
Sent: Friday, March 12, 2021 5:46 AM
To: Credentials Community Group <public-credentials@w3.org>
Subject: Building a did:key document with a publicKeyJwk



Dear all,


I am building a did:key document. The base64url for multibase puts a u prefix 
in front. In my publicKeyJwk I keep the prefix for the x and y coordinates of 
the key. I've attached some scratch code.

 <https://gist.github.com/bshambaugh/0996f89023b54aababe1d5ff48a6ca2b> 
https://gist.github.com/bshambaugh/0996f89023b54aababe1d5ff48a6ca2b

Would it be correct, or incorrect to remove the prefix? I am not sure what to 
make of RFC7518.

Perhaps since the example with P-256  <https://w3c-ccg.github.io/lds-jws2020/> 
https://w3c-ccg.github.io/lds-jws2020/ is missing the

prefix u from  <https://github.com/multiformats/multibase> 
https://github.com/multiformats/multibase I need to remove it.



Thanks,



Brent