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Subject: RE: [cti-stix] STIX 2.1 discussion
Myself - I would prefer confidence be a numeric code of say 1-100 with an allowed value that maps to "unknown" (perhaps 0 or -1), and leave it up to individual implementers if they want to map that to the admiralty code in their software or not. Hi, Jane, It seems it is already published in 2014 Why Assessing Estimative Accuracy Is Feasible and Desirable https://www.hks.harvard.edu/fs/rzeckhau/Assessing%20Estimative%20Accuracy.pdf Regards, Ryu From: cti-stix@lists.oasis-open.org [mailto:cti-stix@lists.oasis-open.org] On Behalf Of JG on CTI-TC Sent: Tuesday, August 23, 2016 8:00 AM To: cti-stix@lists.oasis-open.org Subject: Re: [cti-stix] STIX 2.1 discussion All: I just wanted to point out this forthcoming article that will be published in Intelligence and National Security that discusses the Admiralty Code. https://www.hks.harvard.edu/fs/rzeckhau/Evaluating%20Estimative%20Accuracy.pdf Jane Ginn
Can you put together a proposal for Confidence? Thanks, Bret Bret Jordan CISSP Director 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."
I would argue for the confidence as well. I understand that you want it to interact with digital signatures, but I know we’re using it already in STIX 1.x. We use the confidence field as Terry described, to give our analysts some hint how much they should care about something if they see it in traffic or how likely we believe it could be to cause false positives. Every single thing in our database has a confidence on it. I would also push for incident (for our use) and also for internationalization for the sake of increased adoption. Sarah Kelley Senior CERT Analyst Center for Internet Security (CIS) Integrated Intelligence Center (IIC) Multi-State Information Sharing and Analysis Center (MS-ISAC) 1-866-787-4722 (7㈴ SOC) Email: cert@cisecurity.org www.cisecurity.org Follow us @CISecurity From: cti-stix@lists.oasis-open.org [mailto:cti-stix@lists.oasis-open.org] On Behalf Of Jordan, Bret Sent: Monday, August 22, 2016 12:55 PM To: Trey Darley <trey@kingfisherops.com> Cc: Terry MacDonald <terry.macdonald@cosive.com>; Jyoti Verma (jyoverma) <jyoverma@cisco.com>; Fai, Joyce <Joyce.Fai@gd-ms.com>; cti-stix@lists.oasis-open.org; Kemp, David P <dpkemp@nsa.gov>; Brule, Joseph M <jmbrule@radium.ncsc.mil> Subject: Re: [cti-stix] STIX 2.1 discussion Confidence does not really make sense before we have digital signatures, neither does the opinion object.. Without digital signatures first, there is no "real" confidence or opinion as everything could be faked. Thanks, Bret Bret Jordan CISSP Director 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."
On 20.08.2016 08:22:15, Terry MacDonald wrote:
+1 for Terry's list of STIX 2.1/2.2 priorities -- Cheers, Trey ++--------------------------------------------------------------------------++ Kingfisher Operations, sprl gpg fingerprint: 85F3 5F54 4A2A B4CD 33C4 5B9B B30D DD6E 62C8 6C1D ++--------------------------------------------------------------------------++ -- "All systems, regardless of composition, do one of three things: blow up, oscillate, or stay about the same." --anonymous This message and attachments may contain confidential information. If it appears that this message was sent to you by mistake, any retention, dissemination, distribution or copying of this message and attachments is strictly prohibited. Please notify the sender immediately and permanently delete the message and any attachments. . . . -- Jane Ginn, MSIA, MRP CTI-TC Co-Secretary Cyber Threat Intelligence Network, Inc. jg@ctin.us |
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