Re: [cti] Items Ready for TC Wide Final Review

From
Jason Keirstead <>
Date
2019-04-29T17:43:48+00:00
ID
Thread
Re: [cti] Items Ready for TC Wide Final Review
I agree with this
text.

Then we can publish
a separate work product for the recommended OASIS CTI namespace UUID(s)
and the accompanying name generation algorithm(s) for said versions. 

Having it separate
makes it easier to evolve and amend.

-
Jason Keirstead
Lead Architect - IBM Security Connect
www.ibm.com/security

"Would you like me to give you a formula for success? It's quite simple,
really. Double your rate of failure."

- Thomas J. Watson

From:
       Sean
Barnum <>
To:
       Patrick
Maroney <>, Alexandre Dulaunoy <>,
"" <>
Date:
       04/29/2019
02:25 PM
Subject:
       Re:
[cti] Items Ready for TC Wide Final Review
Sent
by:        <>

+1

 

Sean
Barnum

Principal
Architect

FireEye

M:
703.473.8262

E:


From:
<> on behalf of Patrick Maroney <>
Date: Monday, April 29, 2019 at 10:58 AM
To: Alexandre Dulaunoy <>, ""
<>
Subject: Re: [cti] Items Ready for TC Wide Final Review

 

Hereâs
a little word crafting for Alexandreâs suggestion:

 

All
identifiers, excluding those used in the deprecated cyber observable container,
MUST follow the form object-type--UUID,
where object-typeis the exact value (all type names are lowercase strings, by definition)
from the typeproperty of the object being identified or referenced and where the UUIDis an RFC 4122-compliant UUID. The UUID MUST be generated according
to the algorithm(s) defined in RFC 4122, [RFC4122].

 

 

Patrick
Maroney

DarkLight

Mobile:
(609)841-5104

Email:
 

 

www.darklight.ai

 

 

From:
"" <>
on behalf of Alexandre Dulaunoy <>
Organization: CIRCL - Computer Incident Response Center Luxembourg
Date: Monday, April 29, 2019 at 10:34 AM
To: "" <>
Subject: Re: [cti] Items Ready for TC Wide Final Review

 

On
25/04/2019 22:12, Bret Jordan wrote:

All,

The
following sections are ready for TC final review.  Some of these are
in different Google Documents so I have included direct links for you.
 Please have all suggestions and changes in the

documents
by end-of-day Friday May 10th (2 weeks from today):

Introduction
and Overview: Section 1.6 - 1.8

https://docs.google.com/document/d/1ShNq4c3e1CkfANmD9O--mdZ5H0O_GLnjN28a_yrEaco/edit#heading=h.klv9fmnhjhrc

 

Thank
you for the work.

 

But
the UUID description is still not solving the issue already mentioned in
https://github.com/oasis-tcs/cti-stix2/issues/133.

 

The
current proposal in the draft:

 

"All
identifiers, excluding those used in the deprecated cyber observable container,
MUST follow the form object-type--UUID, where object-type is the exact
value (all type names are lowercase strings,

by
definition) from the type property of the object being identified or referenced
and where the UUID is either an RFC 4122-compliant Version 4 UUID or Version
5 UUID. The UUID portion MUST be

generated
according to the algorithm(s) defined in RFC 4122, section 4.4 (Version
4 UUID) or section 4.3 (Version 5 UUID) [RFC4122]."

 

Could
this be updated in the following way:

 

"All
identifiers, excluding those used in the deprecated cyber observable container,
MUST follow the form object-type--UUID, where object-type is the exact
value (all type names are lowercase strings,

by
definition) from the type property of the object being identified or referenced
and where the UUID is either an RFC 4122-compliant UUID. The UUID portion
MUST be generated according to the

algorithm(s)
defined in RFC 4122, section 4 [RFC4122]."

 

We
have an ongoing fork for the CTI STIX2 implementation and this change could
solve a host of issues reported by several vendors / implementers that
we are in contact with.

 

Could
we count on the TC for ensuring this is passing in STIX 2.1? Because this
is a major blocker and I would be very disappointed to keep having to maintain
our fork of the STIX 2 libraries,

especially
considering the rather steep effort required to keep it in line.

 

Thank
you very much.

 

--

Alexandre
Dulaunoy

CIRCL
- Computer Incident Response Center Luxembourg

16,
bd d'Avranches L-1160 Luxembourg

- www.circl.lu- (+352) 247 88444

 

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