zfs crypto discuss - Mar 2008 - [Bug 704] New: add blkptr_t fields to CCM additional authenticated data

http://defect.opensolaris.org/bz/show_bug.cgi?id=704

           Summary: add blkptr_t fields to CCM additional authenticated data
    Classification: Development
           Product: zfs-crypto
           Version: unspecified
          Platform: Other
        OS/Version: Solaris
            Status: NEW
          Severity: minor
          Priority: P4
         Component: other
        AssignedTo: darrenm at opensolaris.org
        ReportedBy: darrenm at opensolaris.org
         QAContact: hua.tang at sun.com
                CC: zfs-crypto-discuss at opensolaris.org
   Estimated Hours: 0.0


CCM mode can authenticate data that it isn''t encrypting.

Some of the fields in the blkptr_r can be added as authenticated but not
encrypted data.  The dva and properties seem like good candidates.

Note that this doesn''t require anymore space than we already have to
deal
with for the CCM auth tag that we always have.

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http://defect.opensolaris.org/bz/show_bug.cgi?id=704


ajscarp at yahoo.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|darrenm at opensolaris.org     |ajscarp at yahoo.com




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ajscarp at yahoo.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|ajscarp at yahoo.com           |darrenm at opensolaris.org




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Darren J Moffat <darrenm at opensolaris.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|                            |WONTFIX




--- Comment #1 from Darren J Moffat <darrenm at opensolaris.org> 
2008-06-09 07:36:20 ---
The parts of the blkptr_t that would have been really nice to have as CCM
additional authenticated data are the dva, the rest of the checksum and the blk
birth.  However none of those are available at the time we do the encryption.

So I''m closing this without doing anything as there is nothing
interesting in
the blkptr_t we can add in as additional authenticated data.

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