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We seek a world of open platforms and protocols with real choices of applications and services for people. We care about privacy, transparency and autonomy. Our tools and organisations should fundamentally be accountable and resilient.


Jörg F. Wittenberger [LibreList] Re: [redecentralize] Re: Trustworthy Contract Handling - Comparison Of Approaches 2014-08-15 19:21:54 (6 years 7 mons 18 days 14:34:00 ago)
Am 15.08.2014 18:46, schrieb Nicholas H.Tollervey:
>> Question: Am I correct to understand that the "key" field serves
>> this purpose?
> It is, indeed a unique identifier for the item.


>> I'm a bit concerned about the inclusion of some public_key here.
>> This identifier should IMHO only cover non-repudiable, public (or
>> semi-public) meta data.  No private data an nothing one would ever
>> want to change.
> I'm not sure I understand you completely. The public key is required
> in order for third parties to validate the signature (created with the
> associated private key).

May I ask: why does it have to be that way?

Experience teaches that public/secret key schemes need to be change over 
time.  We call them "circumstantial" for the dependency on a secret 
being kept secret.

It would be IMHO much better if the proof would be possible even without 
relying on PKI limited by such secrets.
Most signature schemes actually sign a hash of the underlying info 
anyway.  Why not expose it as an independent proof?

> Quite... the drogulus is supposed to be application agnostic. 

(as is Askemos  ;-)

>> So I need an environment where I see agents (be them accounts
>> representing human users or automated, autonomous processes)
>> communicating via asynchronous, unreliable, unidirectional
>> messages. That's how we observe human interaction in writing.
>> Humans or juristic persons sending letters, registered mail etc.
> Again, quite. Actually, it's not just humans - I've been reading quite
> a bit of literature on insect interactions, communication and
> behaviour. A good overview and a book I particularly enjoyed was
> Deborah Gordon's "Ant Encounters - Interaction Networks and Colony
> Behaviour".

No, don't do that to me!  Ant's.  Yes, sure I looked at those too!

>> Side note: Tuns out documents like contracts (which is what
>> "business" boils down into) could seen as a finalized subclass of
>> agents which just don't change state ever.  However in practice a
>> fuse mounted directory at my desktop is just yet another such
>> agent, certainly changing state.
> Hah... a trivial distributed "Dropbox" clone built with fuse is one of
> my target "quick example" applications (a la "create a blog" for web
> frameworks and "create a todo list" for Javascript frameworks).

Want one?  Takes a minute.  ;-)

> OK... I'm going to call a time-out. I've read the following but won't
> comment simply because I'm about to leave to spend some time on a
> remote Scottish island without internet (but I wanted to reply before
> I left the relatively connected location of the mainland - I'm playing
> email catch-up).

See you soon.