[Nfd-dev] VCs vs certificates

[Zhiyi Zhang]

Thank you so much for adding the part missing from my slides.
Also for other people's information, more details of VC can be found in
https://www.w3.org/TR/vc-data-model/

Best,
Zhiyi

On Fri, Jan 29, 2021 at 11:33 AM Nikos Fotiou via Nfd-dev <
nfd-dev at lists.cs.ucla.edu> wrote:

> Hi,
> I attended today's NFD call and I really liked Zhiyi's presentation. There
> was a discussion about the differences between VCs and certificates so I
> would like to contribute my 2c.
>
> A first difference is that VCs are using "contexts" which can be viewed as
> "dictionaries" that describe what claims a VC may contain. There are teams
> that try to define such "standard dictionaries", for example there is a W3C
> working group that develops  a dictionary for academic records. This
> facilitates, among other things, interoperability.
>
> The second difference is Verifiable Presentations (VPs). A property of
> VPs, which was not mentioned today, is that they may combine different
> credentials. For example, I can construct a VP that verifies that I am over
> 18 years old, I have graduated from AUEB, and I have a valid driving
> license, and all these claims can be derived from three different
> credentials, issued by thee different issuers.
>
> Best,
> Nikos
> --
> Nikos Fotiou - http://pages.cs.aueb.gr/~fotiou
> Researcher - Mobile Multimedia Laboratory
> Athens University of Economics and Business
> https://mm.aueb.gr
>
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