- From: Manu Sporny <msporny@digitalbazaar.com>
- Date: Fri, 7 Jan 2022 15:11:01 -0500
- To: public-credentials@w3.org
On 1/6/22 3:49 PM, Nikos Fotiou wrote: > Since JWS supports multi signatures, can’t we claim that jwt encoded VCs > (kind of) already support this feature? As David mentioned, no we can't because the VC-JWT implementers chose a single, detached signature approach: https://w3c.github.io/vc-data-model/#json-web-token At present, it is not possible to do multiple signatures using the VC-JWT approach. This may change in the VCWG 2.0 work if there are a group of people that are willing to put in the work to take the approach that David mentioned. I will note that even if that approach is taken, there will be challenges with nested signatures (base64 bloat and multiply encapsulated base64 messages) and chained signatures (same base64 bloat problem) with JWT. I'm not saying some variation of multiple signatures isn't possible with VC-JWT... just that it is not possible today. It /is/ possible to do a JsonWebSignature2020 (which is a Data Integrity cryptosuite) to do multiple signatures today. -- manu -- Manu Sporny - https://www.linkedin.com/in/manusporny/ Founder/CEO - Digital Bazaar, Inc. News: Digital Bazaar Announces New Case Studies (2021) https://www.digitalbazaar.com/
Received on Friday, 7 January 2022 20:11:18 UTC