Re: New Work Item Proposal: Revocation List 2020

Can someone explain Accumulator-based revocation? Ideally, please relate it
to some real-world experience like the old credit card revocation books.

TIA,
- Adrian

On Mon, May 4, 2020 at 9:29 AM Manu Sporny <msporny@digitalbazaar.com>
wrote:

> On 5/4/20 5:33 AM, Tobias Looker wrote:
> > We are however as Mike has alluded to working on an implementation using
> > cryptographic accumulators that we think offer enhanced privacy
> > guarantees when they are required.
>
> Yes, +1 to the above.
>
> This isn't an either/or decision... it's an *and* decision.
>
> Bitstring-based Revocation Lists are appropriate for a set of use cases,
> Accumulator-based revocation mechanisms are appropriate for another set
> of use cases. There is a significant overlap between the two sets of use
> cases. I'd argue that the latter is a superset of the former.
>
> If we can get Accumulator-based revocation mechanisms into the
> mainstream using the techniques that Mike L. mentioned, then great, we
> can probably drop the Bitstring-based Revocation Lists as archaic and
> less performant than the Accumulator-based revocation mechanisms. That
> said, we're not there yet, so we need something that's going to be
> usable in the near term (next several months), while we wait for the
> Accumulator-based revocation mechanisms to be formalized. If we're
> lucky, they are formalized at the same time... I can see a few ways that
> could happen.
>
> The community should dual-tracking this stuff to hedge our bets... if
> both get standardized around the same time, great, if not, one might be
> standardized a year or two before the other one.
>
> -- manu
>
> --
> Manu Sporny - https://www.linkedin.com/in/manusporny/
> Founder/CEO - Digital Bazaar, Inc.
> blog: Veres One Decentralized Identifier Blockchain Launches
> https://tinyurl.com/veres-one-launches
>

Received on Monday, 4 May 2020 13:39:34 UTC