What’s next for BBS+ LD-Proofs? by Brent Zundel
Possible working group, or addition to DIF C&C WG for work on ldp-bbs2021
What had been discovered by Whitfield Diffie and Martin Hellman (and also Jame Ellis), is changing the world as we know it. It’s been only 43 years. Yes, that seems like an ice-age ago, but in the grand scheme of history, it is only a wink.
Currently, everyone waiting for #AIP2, which enables #BBS+ #Signature in #SSI. Companies already implemented in their products, such as @trinsic_id and @mattrglobal. But ZKP #predicates are not supported by BBS+, so no ZKP age verification possible. Back to #AnonCreds?
Compared to the CL signature, the BBS+ signature has much shorter keys and signatures for a comparable level of security. As a result, the BBS+ signature enables fast implementation for anonymous credentials. It can be used in combination with signature proof of knowledge to hide some of credential attributes/messages in a zero-knowledge fashion.
The BBS+ signature will also soon be available in Finema’s Identity Wallet! We are excited to see how this technology will make an impact to the society in the coming years.
In a recent Evernym blog post, we discussed why BBS+ LD-Proofs are the privacy-preserving VC format that everyone should implement. In this webinar….
- A brief history of verifiable credential formats, and how a lack of convergence makes scale and interoperability an ongoing challenge
- How BBS+ Signatures are the breakthrough that combine the best of the JSON-LD and ZKP formats, while still allowing for selective disclosure and non-trackability
- The path forward: What remains to be done to fully converge on the BBS+ format
in order for DIDComm to provide a potential replacement for commonly used chat protocols like WhatsApp (Extensible Messaging and Presence Protocol (XMPP)), Telegram (MTProto), or Signal (Signal Protocol), it needs to support modern chat features we use everyday