- From: Manu Sporny <msporny@digitalbazaar.com>
- Date: Thu, 12 Dec 2024 14:52:03 -0500
- To: W3C Credentials CG <public-credentials@w3.org>
Hey folks, Deadline: December 20th, 2024 DIF just posted a nice write up on why unlinkable disclosure via BBS is important and how /you/ can support the work at the IETF. An excerpt is provided from the blog post below, and the rest of it can be found on the DIF blog (link below). Make sure to follow the call to action if you care about privacy and unlinkable disclosure and haven't sent in your statement of support already: BBS: Where Proof Meets Privacy The applied cryptography community is making significant strides in standardizing BBS signatures and their extensions - a crucial development for privacy-preserving digital credentials. This work represents a major step forward in enabling more private and secure digital interactions while maintaining the necessary balance between privacy and accountability. What is BBS? BBS is a secure digital signature mechanism that proves information is authentic and unchanged, similar to how a notary validates physical documents. Unlike other digital signature mechanisms, BBS enables powerful privacy features while maintaining security. Its name comes from its creators – cryptographers Dan Boneh, Xavier Boyen, and Hovav Shacham. This combination of security and privacy makes it particularly well-suited for digital credential systems, where protecting both authenticity and user privacy is crucial. Why BBS Matters BBS signatures provide a unique combination of privacy and practical utility that makes them especially valuable for digital credentials. From a technical perspective, BBS stands out for: * Constant-size signatures regardless of the number of messages signed * True unlinkability between different uses of the same credential * The ability to sign and selectively reveal multiple messages within a single signature These technical properties translate into practical benefits for digital credentials: ... continued in the DIF blog post: https://blog.identity.foundation/bbs-where-proof-meets-privacy/ Make sure to reply to the CFRG mailing list thread indicating your support for adoption: https://mailarchive.ietf.org/arch/msg/cfrg/H3LfT7mrelFnDUvJ3kL6CNev3C8/ Deadline: December 20th, 2024 -- manu -- Manu Sporny - https://www.linkedin.com/in/manusporny/ Founder/CEO - Digital Bazaar, Inc. https://www.digitalbazaar.com/
Received on Thursday, 12 December 2024 19:52:43 UTC