[Sis-dtn] [EXT] RE: Today's telecon

[Robert C Durst]

Many thanks to Scott for leading the discussion and for all who were able to participate.  I started a RID spreadsheet for BPSec (attached) and will upload it to CWE presently.

 

Best,

Bob

 

From: sburleig.sb at gmail.com <sburleig.sb at gmail.com> 
Sent: Thursday, October 5, 2023 1:32 PM
To: Robert C Durst <durst at mitre.org>; sis-dtn at mailman.ccsds.org
Subject: [EXT] RE: [Sis-dtn] Today's telecon

 

Hi. The agenda item for today’s meeting was review of Tom Gannett’s editorial RIDs against the BPSec draft (734x5r2. pdf). Here’s what I believe we agreed on: 3. 2. 2: agreed. No applicable normative documents exists, so this 



Hi.  The agenda item for today’s meeting was review of Tom Gannett’s editorial RIDs against the BPSec draft (734x5r2.pdf).  Here’s what I believe we agreed on:

*	3.2.2: agreed.  No applicable normative documents exists, so this language must be non-normative.  Something like “Implementers of security contexts are encouraged to consult the remarks on key management mechanisms in CCSDS 350.6-G-1 (reference [6]).”
*	4.4.9: two revisions:

*	The words “Endpoint IDentifier (EID)” should be changed to “Node Identifier” in 4.4.9.
*	“Security Source” should be added to the parameters listed in the Semantics of the ApplyBIB.request (4.5.2.2) and ApplyBCB.request (4.5.2.7).

*	4.5.9.4 and 4.5.11.2: two resolutions:

*	Removal of all accepted security options from the BIB and removal of the BIB from the bundle (if all security operations have been removed) are actually additional Effects of the AcceptBIB.request; 4.5.11.2.2 and 4.5.11.2.3 should be removed (possibly restated as NOTES in 4.5.11.3) and their language added to 4.5.9.4.
*	Meanwhile, most of the effects currently listed in 4.5.9.4 are actually (correctly) listed among the Effects on Receipt of VerifyBIB.request; they can be removed from 4.5.9.4.  The remaining current Effect (“generates an AcceptBIB.indication”) is correct.

*	Similarly, two resolutions for 4.5.10.4 and 4.5.12.2:

*	Removal of all accepted security options from the BCB, removal of the BCB from the bundle (if all security operations have been removed), conditional modification of the target blocks of the confidentiality service, conditional replacement of ciphertext by plaintext, and conditional removal of target blocks are actually additional Effects of the AcceptBCB.request; 4.5.12.2.2, 4.5.12.2.3, 4.5.12.2.4, and 4.5.12.2.5 should be removed (possibly restated as NOTES in 4.5.12.3) and their language added to 4.5.10.4.
*	Meanwhile, most of the effects currently listed in 4.5.10.4 are actually (correctly) listed among the Effects on Receipt of VerifyBCB.request; they can be removed from 4.5.10.4 and moreover the text regarding the inclusion of decrypted versions of encrypted blocks can be removed (as this effect is implicit in the other Effects imported from 4.5.12.2).  The remaining Effect (“generates an AcceptBCB.indication”) is correct.

 

One other note that came to me as I was reviewing these: I think the words “verify the integrity of” should be changed to “effect” (or maybe “implement”) in the Function descriptions of AcceptBIB.request (4.5.9.1) and AcceptBCB.request (4.5.10.1).  In both cases I think the verification is performed by the corresponding Verify requests; these Accept requests are instead issued in response to the information provided in the corresponding Verify indications.

 

Scott

 

From: SIS-DTN <sis-dtn-bounces at mailman.ccsds.org <mailto:sis-dtn-bounces at mailman.ccsds.org> > On Behalf Of Robert C Durst via SIS-DTN
Sent: Thursday, October 5, 2023 7:47 AM
To: sis-dtn at mailman.ccsds.org <mailto:sis-dtn at mailman.ccsds.org> 
Subject: [Sis-dtn] Today's telecon

 

I won’t be able to join today’s telecon, as I’ll be on a monthly call with IETF DTN WG chairs and Area Directors.

 

I *believe* that Scott B indicated that he could moderate today’s call.

 

Best,
Bob

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