[Sls-sea-dls] SDLS EP Version 1.5

[Daniel.Fischer at esa.int]

Dear Gilles, all,

Please find attached the version 1.5 of the Extended Procedures. I am 
really sorry I was not able to do this earlier but I had a rather 
difficult summer due to personal issues and a launch that I had to support 
just now (Sentinel 5p). I will try to also work on the EP Green Book 
action I have but I cannot make any promises.

Gilles, you would need to still update the FSR part.

Changed OTAR procedure (all related occurrences in the document): Remove 
CRC as agreed in the last meeting. Uplink is now pairs of (Key ID, Key)
Changed Key Verification procedure (all related occurrences in the 
document): This procedure is now back to the Challenge Response of the 
previous versions of the Blue Book
Master Keys:
It was agreed that master keys should only be explicitly required in the 
OTAR. In the previous version, also the Key Verification procedure was 
referring to the use of a master key. This has been changed and the 
procedure now just talks about a "key protection key" that can be either a 
master or a session key
Removed 4.3.1.3: "Two Security Associations shall be reserved for use with 
the SDLS Extended Procedures and shall be active upon start of a mission 
phase. "
ARC: Added ARC to the Rekey SA procedure as a mandatory, managed field. In 
the baseline mode, as agreed, its 64 bit. Please note that the data 
structure pictures in Sections 5.5.1.3 (Rekey SA) and 7.1.1.3 (Rekey SA 
Baseline Mode) still require update since the document contains only image 
files for them an not the Visio sources (@Craig, could you please provide 
them to me?).
Unique Identification of Sender and Receiver VCs: This is addressed now by 
new clauses 5.3.2.2.2.3.3 and 5.3.2.2.2.3.4, 
Moved and Renamed Read Sequence Number from M&C to Read ARC in SA 
management
Added Annex E for Acronyms...there are probably still some missing.

Cheers and see you all in Den Haag,
Daniel




Dr. Daniel Fischer
Head of the Engineering Support Section, OPS-GES
Ground Systems Engineering Department
Directorate of Operations
ESA - ESOC
Robert-Bosch-Str. 5, D-64392 Darmstadt, Germany
Tel. +49 6151 90 2718 |  E-mail: Daniel.Fischer at esa.int


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