Modernizing Web-of-trust for Organizations

MFPA 2017-r3sgs86x8e-lists-groups at riseup.net
Thu Jan 4 15:10:42 CET 2018


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On Thursday 4 January 2018 at 1:34:30 AM, in
<mid:d1782a47-7888-aa88-ab35-a6a8e0e17110 at gmail.com>, Lou Wynn wrote:-


> Your first comment above mentioned no 3rd-party CA is needed for PGP
> users, but the reference still requires users to manage their trust.
> In my opinion, PGP has an unnecessarily complicated trust management
> recommendation: the web of trust, when used in an enterprise
> environment.

It is up to the enterprise how simple or complicated they choose to
make it. Their internal web of trust could be a simple hierarchy.



> My goal is to simplify user-side trust management work
> to zero, and the result is the concept of trust realm and trust
> group.

How complicated is user-side trust management within an enterprise
environment? If their internal web of trust is a simple hierarchy,
each user's software automatically trusts all other employees.

For business partners, the enterprise's certification key would have
to be able to sign the business partner's key as a trusted introducer
but only for staff at their own domain. Perhaps the use of Web Key
Directory [0] is already a simple enough solution.

The organisation's particular threat model may not require the keys of
business partners' staff to be signed at all as long as each contact
consistently uses the same key. In that case, Trust On First Use
(TOFU) [1] may be sufficient.


[0]
<https://www.gnupg.org/blog/20161027-hosting-a-web-key-directory.html>

[1]
<https://www.gnupg.org/blog/20151103-gnupg-in-october.html#sec-1-5>



- --
Best regards

MFPA                  <mailto:2017-r3sgs86x8e-lists-groups at riseup.net>

Never trust a dog with orange eyebrows
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