These are very good points Jason. And I think, while we are not yet there, at some point we will be digitally signing these objects. When we go down that path, only the original producer will be able to sign the document. This means, that 3rd party revisions, will break the signature.
Thanks,
Bret Bret Jordan CISSPDirector of Security Architecture and Standards | Office of the CTO Blue Coat Systems PGP Fingerprint: 63B4 FC53 680A 6B7D 1447 F2C0 74F8 ACAE 7415 0050 "Without cryptography vihv vivc ce xhrnrw, however, the only thing that can not be unscrambled is an egg."
Question - who is "allowed" to revision an object? Can only the originator revision, or can anyone?
I presume that many people assume that only the originator can revision an object - if that is so we should call this out explicitly. The current STIX versioning description (http://stixproject.github.io/documentation/concepts/versioning/ ) implies that anyone can version an object so long as it is "sufficiently unchanged". I think that will lead to a lot of confusion if anyone can revision an object.
On the other hand, if we want to get to the world of widespread object re-use and non-duplication, then third parties have to be able to revision objects. But what if I want to be the authoritative source? Should there be an attribute like "versioning_allowed" ?
I am just spitballing.
-
Jason Keirstead
STSM, Product Architect, Security Intelligence, IBM Security Systems
www.ibm.com/security | www.securityintelligence.com
Without data, all you are is just another person with an opinion - Unknown
<graycol.gif>Patrick Maroney ---02/11/2016 11:10:17 PM---Although I suspect I'm banned from using the term Timestamp for at least a year ;-) ...Here's an int
From: Patrick Maroney <Pmaroney@Specere.org>
To: "Jordan, Bret" <bret.jordan@bluecoat.com>, "cti@lists.oasis-open.org" <cti@lists.oasis-open.org>
Date: 02/11/2016 11:10 PM
Subject: Re: [cti] versioning
Sent by: <cti@lists.oasis-open.org>
Although I suspect I'm banned from using the term Timestamp for at least a year ;-) ...Here's an interesting concept to consider:
{from:1388534400000,to:9223372036854775807}
Note: Ian Robison uses uses epoch time in this example, so that may buy me some cover ;-)
Patrick MaroneyOffice: (856)983-0001Cell: (609)841-5104<0C160672.gif>PresidentIntegrated Networking Technologies, Inc.PO Box 569Marlton, NJ 08053From: "cti@lists.oasis-open.org" <cti@lists.oasis-open.org> on behalf of Bret Jordan <bret.jordan@bluecoat.com>
Date: Thursday, February 11, 2016 at 7:48 PM
To: "cti@lists.oasis-open.org" <cti@lists.oasis-open.org>
Subject: [cti] versioningWhat would people think about a versioning concept where each TLO had a "serial_number" field that was of type integer. And every object that gets created by a producer will start with serial_number "1". Then as they update the TLO, the producer will just incase the serial_number. I want to get the discussion started as I know some have very strong opinions on how it should work. But I also think, that with some good back and forth dialog, and some "coming to middle ground" we could solve this pretty quickly.
Thanks,BretBret Jordan CISSP Director of Security Architecture and Standards | Office of the CTOBlue Coat SystemsPGP Fingerprint: 63B4 FC53 680A 6B7D 1447 F2C0 74F8 ACAE 7415 0050"Without cryptography vihv vivc ce xhrnrw, however, the only thing that can not be unscrambled is an egg."
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