Add did:key for BLS 12381 G2 #276
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Nota bene @kdenhartog |
sbihel
approved these changes
Sep 8, 2021
wyc
approved these changes
Sep 8, 2021
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This adds support for resolving and generating
did:key:zUC7(BLS 12381 G2 public key), using JWK.There is no dependency added yet or new cryptographic operations taking place, only conversion between did:key and JWK.
These changes aim to use the JWK format in https://datatracker.ietf.org/doc/draft-denhartog-pairing-curves-jose-cose/ (https://github.com/mattrglobal/bls12381-jwk-draft). The BBS+ Signature Suite 2020 is expected to be updated to use this JWK format: w3c/vc-di-bbs#58. For now they are slightly different. I am assuming that the bytes in the JWK "x" parameter are the same 96 bytes (compressed G2 public key) that are used in the
did:keystring, but this should be confirmed.