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IDProjectCategoryView StatusDate SubmittedLast Update
000347310000-006: MappingsSpecpublic2016-07-19 15:432016-12-06 17:54
ReporterRavil Nugmanov Assigned Torandyarmstrong  
PrioritynormalSeverityminorReproducibilityalways
Status closedResolutionfixed 
Summary0003473: Description of deriving symmetric keys is not accurate and clear
Description

Section 6.7.5: It is not obvious how the sequence of bytes is produced and some portion of it is used starting from the offset position, to create a key or initialization vector.
It refers to function P_SHA1 in SSL/TLS spec, but that spec does not have description of such a function (it has P_SHA256 though).
In the formula illustrating how the sequence is generated using iterations, the mentioned spec uses P_hash as a function name (not P_SHA1).

Modified version of the spec with proposed change is attached.

TagsNo tags attached.
Commit Version
Fix Due Date

Activities

Ravil Nugmanov

2016-07-19 15:43

reporter  

OPC UA Part 6 - Mappings 1.04 Specification Ravil.docx (979,145 bytes)

Ravil Nugmanov

2016-07-19 15:51

reporter   ~0007109

One more note: the spec says that pseudo-random function defined in SSL/TLS spec is used "in some Security Policies" without clarifying in which ones, but actually it looks like it is used in all secured mode policies.

randyarmstrong

2016-12-04 20:41

administrator   ~0007403

Clarified text as suggested in DRAFT 1.04.09

Jim Luth

2016-12-06 17:54

administrator   ~0007453

Agreed to changes in telecon.

Issue History

Date Modified Username Field Change
2016-07-19 15:43 Ravil Nugmanov New Issue
2016-07-19 15:43 Ravil Nugmanov File Added: OPC UA Part 6 - Mappings 1.04 Specification Ravil.docx
2016-07-19 15:51 Ravil Nugmanov Note Added: 0007109
2016-08-30 16:41 Jim Luth Assigned To => randyarmstrong
2016-08-30 16:41 Jim Luth Status new => assigned
2016-12-04 20:41 randyarmstrong Note Added: 0007403
2016-12-04 20:41 randyarmstrong Status assigned => resolved
2016-12-04 20:41 randyarmstrong Resolution open => fixed
2016-12-06 17:54 Jim Luth Note Added: 0007453
2016-12-06 17:54 Jim Luth Status resolved => closed
2016-12-06 17:54 Jim Luth Fixed in Version => 1.04