Re: Proof of possession

+1
On Jun 14, 2016 9:27 PM, "Manu Sporny" <msporny@digitalbazaar.com> wrote:
>
> On 06/14/2016 05:14 PM, David Chadwick wrote:
> > BTW, losing a key, physical or electronic, is always a hassle, but it
> > is not irreparable.
>
> In some cases it is:
>
> For example, a student goes to a community college, learns a new skill,
> and is issued a verifiable claim asserting that new skill.
>
> The community college goes out of business a year later.
>
> The student loses their private key a year after that.
>
> The student is now in the position of having to re-take the
> classes/exams to prove that they have the skill set in question.
>
> Surely the community college had a data propagation strategy! Not all of
> them do, and even if they do, some of them still let students
> slip through the cracks.
>
> Or this scenario:
>
> Someone builds up 30 years of verifiable claims and then loses their
> private key. Can you imagine how hard it would be to get all of those
> claims back? How much you'd have to prove?
>
> The point isn't that something is irreparable - yes, most things can be
> fixed. It just takes an enormous amount of time, energy, money, and
stress.
>
> ... and we can avoid all of this by using identifiers that are not
> cryptographic in nature (e.g. DIDs).
>
> -- manu
>
> --
> Manu Sporny (skype: msporny, twitter: manusporny, G+: +Manu Sporny)
> Founder/CEO - Digital Bazaar, Inc.
> JSON-LD Best Practice: Context Caching
> https://manu.sporny.org/2016/json-ld-context-caching/
>