[Cryptography] Cryptographic feasibility of a decentralized trust infrastructure without a master key

[Tom Mitchell]

On Sun, Oct 4, 2026 at 17:18 zeb--- via cryptography <
cryptography at metzdowd.com> wrote:

> > From: Jens Weber
> > Sent: Thursday, 1 October 2026 23:35
> > To: cryptography at metzdowd.com
> > Subject: Re: [Cryptography] Cryptographic feasibility of a decentralized
> trust infrastructure without a master key
> >
> > Ideally, AI functions would operate only within narrowly authorized
> contexts and should not require a global view of all sensitive data.
>
> I think Data would disagree. I do too.


Data as in Star Trek 😳

Large systems, disagreement is expected.
So build a Ven-diagram of owners, consumers, customers, users AND abusers
of the data and system.
A second diagrammatic view of applicable laws including a globe of
governments AND note that laws  are dynamic.  So any partitioning and
mandatory access lists must be ephemeral. Even necessary audit data will
have bounds.

AI functions are interesting, map mandatory access controls into AI systems
much as one might for an SQL data system.  The Rainbow Series for trusted
systems evaluation is a start.   No application will be considered secure
if the platform (model) is not secure.

Addition of features needs to be considered.  In high school math I was
taught the value of factorial computing. I was also taught about orders of
infinity. The difference between two giant (infinite) sets can be small —
see Aleph-null vs. Aleph-1
The implied combinations of “stuff” gets large quickly. <=== this
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.metzdowd.com/pipermail/cryptography/attachments/20261004/0eb03d50/attachment.htm>