Re: Verifiable Credentials over Wireless (NFC and Bluetooth)

Hi Manu,

This is a great start.

One suggestion, in section 1.1.4 Protocol upgrade, you might want to change the name of the second person ‘Lora’.  A strong likelihood to cause confusion with the protocol LORA.

Michael Shea




> On Sep 17, 2024, at 3:28 PM, Will Abramson <will@legreq.com> wrote:
> 
> Hey Manu,
> 
> This looks like great work.
> 
> I only had a quick scan, but I have a question. Are these flows only focused on VC presentation? I can't see any use cases or examples that focus on issuance of credentials over NFC at first glance. Is there a reason for this?
> 
> Cheers,
> Will
> 
> On Tue, Sep 17, 2024 at 1:03 PM Manu Sporny <msporny@digitalbazaar.com <mailto:msporny@digitalbazaar.com>> wrote:
> As the adoption rate of verifiable credentials increases (TruAge, US
> Federal Government Agencies, European Digital Identity, US State
> Government Agencies), and as some of the use cases move from purely
> online flows to in person, it would be useful if we were able to
> transmit VCs in more high-security, in-person scenarios, such as via
> short range wireless (NFC and Bluetooth).
> 
> We're excited to announce the Verifiable Credentials Over Wireless
> specification that does just that:
> 
> https://digitalbazaar.github.io/vc-wireless/ <https://digitalbazaar.github.io/vc-wireless/>
> 
> There is a use cases section that goes over some of the target use
> cases such as:
> 
> * NFC presentation of things like legacy public transit passes
> (putting "things that are not VCs into VCs and doing something useful
> with them"),
> 
> * Compressing and sending a VC over NFC in less time than it takes to
> tap a credit card,
> 
> * Performing a VC API workflow over NFC or Bluetooth, and
> 
> * Upgrading from optical or NFC to Bluetooth, local Wifi, or a wide
> area mobile network connection. There are protocol examples in the
> specification to show each of the use cases above.
> 
> We've also got a demo video of the specification in action available here:
> 
> https://youtu.be/hSG-J0LFqfk <https://youtu.be/hSG-J0LFqfk>
> 
> We will be integrating the functionality into the VC Playground in the
> coming weeks.
> 
> We do expect to make a call for adoption as a CCG work item at some
> point in the future. More to come after W3C TPAC, but until then,
> happy to answer any questions, concerns, or comments people might
> have.
> 
> -- manu
> 
> --
> Manu Sporny - https://www.linkedin.com/in/manusporny/ <https://www.linkedin.com/in/manusporny/>
> Founder/CEO - Digital Bazaar, Inc.
> https://www.digitalbazaar.com/ <https://www.digitalbazaar.com/>
>