Issues w/ keydb.cfg and/or FindVUK(now with AACS dumps)

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kaito
Posts: 1
Joined: Thu Jul 17, 2025 1:38 am

Issues w/ keydb.cfg and/or FindVUK(now with AACS dumps)

Post by kaito »

Edit: https://gofile.io/d/FL8BLy Dumps inside. Including the C086 one written below.

I come crossed some AACS v82 BDs.
As I submitted the AACS dumps to svq@makemkv.com and is waiting for an update, I tried FindVUK(and SamuriHL's KeyDB helper) but had no luck.
FindVUK did grab something, later re-validated using KeyDB helper, yet MakeMKV still suffers from decryption errors. (DVDRip seems fine.)
I also synced keydb.cfg via KeyDB helper. Won't help.

My guesses: A. MakeMKV is somehow not recognizing keydb.cfg anyway.
B. FindVUK validated VUKs against 00000.m2ts only, which turned out to be a copyright warning. Real stuff are encrypted w/ other keys. (And I should go to Doom9 to report this if it's the case?)

Code: Select all

Validating disc...
-----------------------------------------------------------
10:51:04 -  ----------- FindVUK 1.82 ----------- 
-----------------------------------------------------------
 To close FindVUK simply press the ESC key
-----------------------------------------------------------
10:51:04 - MODE: ValidateDisc
 
10:51:04 -  DriveLetter  : D
 
10:51:04 - SettingsFile: >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\config\FindVUK.ini<
10:51:04 - Logfile >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\log\2025-07-17_FindVUK.txt< Default Loglevel >2<
10:51:04 - Update enabled - check for update
10:51:04 - No update required
10:51:04 - Open Main-KEYDB file: >C:\Users\kaito\AppData\Roaming\aacs\KEYDB.cfg<
10:51:11 - Open Backup-KEYDB file: >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\VUKbackup\KEYDB.cfg<
-------------------------------------------------------------------------------
10:51:11 - Get basic AACS data
-------------------------------------------------------------------------------
10:51:11 - AACS folder on disc is reachable - Validate is possible
10:51:15 - VolumeName         >BD_ROM<
10:51:15 - DiscId             >F13D7878F137E3A4D585CF57ADF688AB3A12A0CB< (2025-06-13)
10:51:15 - DiscType           >BD<
10:51:15 - MKB Revision       >82<
10:51:15 - Disc-BusEncEnabled >1<
10:51:15 - Drve-BusEncCapable >1<
10:51:15 -  ==> Bus Encryption active!
10:51:15 - UnitKeyCount       >1<
10:51:15 -  >>> UnitKeyENC (1) >54B61B912125C4EFDD260A02031A2298<
10:51:15 - Data read from KeyDB.cfg:
10:51:15 -  VolumeId: 
10:51:15 -  MediaKey: 
10:51:15 -  VUK:      
10:51:15 -  UnitKeys (1):
10:51:15 -  >>> UnitKeyDEC (1) >A18ED9F0FAA96879DF7E7B468CC66D90<
-------------------------------------------------------------------------------
10:51:15 - BusEncryption enabled => either ReadDataKey or disabling of BusEncryption required
-------------------------------------------------------------------------------
10:51:15 - External tool to disable bus encryption defined >"C:\Program Files (x86)\MakeMKV\makemkvcon64.exe" info dev:$DRIVE$ <
10:51:26 - External tool successfully disabled BusEncryption!
-------------------------------------------------------------------------------
10:51:26 -  --- PART 2 --- VALIDATE VUK/UNITKEYS ---
-------------------------------------------------------------------------------
10:51:30 - Information: no bdmv-meta-dl directory available on disc - cannot read meta-title
10:51:30 - Drive is detected as 'REAL BLURAY' drive
10:51:30 - M2TS files found >4<
10:51:30 - Decrypted first unit of file >D:\BDMV\STREAM\00000.m2ts< with UnitKey >1<
10:51:30 - All UnitKeys are VALID! No need to test other files
 
-------------------------------------------------------------------------------
10:51:30 - Validation successful! UnitKeys are valid!!
-------------------------------------------------------------------------------
 
10:51:30 - Disc with ID >F13D7878F137E3A4D585CF57ADF688AB3A12A0CB< is already in file - need to compare the details
10:51:30 - -------------------------------------------------------
10:51:30 -  VolumeName  : BD_ROM
10:51:30 -  DiscID      : F13D7878F137E3A4D585CF57ADF688AB3A12A0CB
10:51:30 -  DateDiscID  : 2025-06-13
10:51:30 -  DiscType    : BD
10:51:30 -  VUK         : 
10:51:30 -  MEDIAKEY    : 
10:51:30 -  VOLUMEID    : 
10:51:30 -  >>> UnitKeyDEC (1) >A18ED9F0FAA96879DF7E7B468CC66D90< (Valid)
10:51:30 -  MKBrev      : 82
10:51:31 -  BusEncrEn   : 1
10:51:31 -  AACS        : 1
10:51:31 -  BD+         : 0
10:51:31 - -------------------------------------------------------
 
 
-------------------------------------------------------------------------------
10:51:31 - --- Write entry in main-keydb file ---
-------------------------------------------------------------------------------
 
10:51:31 - Keys in Keyfile: 167318 keys - KeyFile: C:\Users\kaito\AppData\Roaming\aacs\KEYDB.cfg
10:51:31 - Disc with ID >F13D7878F137E3A4D585CF57ADF688AB3A12A0CB< is already in file - need to compare the details
 
10:51:31 - KEYDB: Identical entry already present in keydb-file
10:51:31 -  >> Identical:  TITLE, VUK, DATE, MEDIAKEY, VOLUMEID, UNITKEYS, COMMENT - Different: nothing >> will NOT write new entry in keydb-file
 
10:51:31 - Identical entry already present in keydb-file - file is not changed
 
 
-------------------------------------------------------
10:51:31 - --- Write entry in backup-keydb file ---
-------------------------------------------------------
 
10:51:31 - KEYDB: file >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\VUKbackup\KEYDB.cfg< does not exist ==>> write new entry in keydb-file
 
10:51:31 - Added line with VUK/UnitKeys to file >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\VUKbackup\KEYDB.cfg<
 
10:51:31 - -------------------------------------------------------
10:51:31 - --- Upload MetaXML to OnlineDB file ---
10:51:31 - -------------------------------------------------------
Establishing connection
Establishing connection
HTTP-POST success
10:51:32 - Successfully posted to the OnlineDB! >
Preconditions fulfilled - process upload now 
Detected BlurayMetaXML - DiscId >F13D7878F137E3A4D585CF57ADF688AB3A12A0CB< 
Upload written to database! 
Meta-Upload successfully processed!
<
10:51:32 - Successful upload to OnlineDB
10:51:32 - Eject the disc now from drive >D:\<
 
10:51:36 - Successfully ejected the media in drive D!

Code: Select all

MakeMKV v1.18.1 win(x64-release) started
Debug logging enabled, log will be saved as C:\Users\kaito/MakeMKV_log.txt
Using LibreDrive mode (v06.3 id=4FBA32AEC678)
Backing up disc into folder "C:/(edited)/BD_ROM"
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?WtPiyREQ0MyBw2...
Saved AACS dump file as C:\Users\kaito/.MakeMKV/MKB_v82_BD_ROM_C086.tgz
The volume key is unknown for this disc - video can't be decrypted
DEBUG: Code 0 at `{q#WHE]"p5'4|CK:213132721
DEBUG: Code 0 at n44NxOr>=\%f3xEN<2T:121273319
DEBUG: Code 0 at B`ut4y]!X\p5gw'4V:jX:121265338
Backup failed
Last edited by kaito on Thu Jul 17, 2025 4:37 am, edited 1 time in total.
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keydb_helper
Posts: 340
Joined: Fri Sep 06, 2024 4:47 pm

Re: Issues w/ keydb.cfg and/or FindVUK(now with AACS dumps)

Post by keydb_helper »

kaito wrote: ↑
Thu Jul 17, 2025 2:14 am
 My guesses: A. MakeMKV is somehow not recognizing keydb.cfg anyway.
Hey kaito, it looks like the keydb only had unit keys (UK) for your discs. If you sync the keydb again your discs should have complete records now.

Unfortunately MakeMKV only utilises the keydb file as a source of volume unique keys (VUK). These keys are used to derive the unit keys, which in turn are used to decrypt the disc content. There is no technical reason why MakeMKV couldn't utilise the keydb to decrypt your disc, it is just a limitation of MakeMKV at the moment.
kaito wrote: ↑
Thu Jul 17, 2025 2:14 am
 B. FindVUK validated VUKs against 00000.m2ts only, which turned out to be a copyright warning. Real stuff are encrypted w/ other keys. (And I should go to Doom9 to report this if it's the case?)
The FindVUK log notes that your discs only have a single unit key. Any encrypted content can only be encrypted with that single key.
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MartyMcNuts
Posts: 3582
Joined: Wed Nov 22, 2017 11:45 pm

Re: Issues w/ keydb.cfg and/or FindVUK(now with AACS dumps)

Post by MartyMcNuts »

kaito wrote: ↑
Thu Jul 17, 2025 2:14 am
 Edit: https://gofile.io/d/FL8BLy Dumps inside. Including the C086 one written below.

I come crossed some AACS v82 BDs.
As I submitted the AACS dumps to svq@makemkv.com and is waiting for an update, I tried FindVUK(and SamuriHL's KeyDB helper) but had no luck.
FindVUK did grab something, later re-validated using KeyDB helper, yet MakeMKV still suffers from decryption errors. (DVDRip seems fine.)
I also synced keydb.cfg via KeyDB helper. Won't help.

My guesses: A. MakeMKV is somehow not recognizing keydb.cfg anyway.
B. FindVUK validated VUKs against 00000.m2ts only, which turned out to be a copyright warning. Real stuff are encrypted w/ other keys. (And I should go to Doom9 to report this if it's the case?)

Code: Select all

Validating disc...
-----------------------------------------------------------
10:51:04 -  ----------- FindVUK 1.82 ----------- 
-----------------------------------------------------------
 To close FindVUK simply press the ESC key
-----------------------------------------------------------
10:51:04 - MODE: ValidateDisc
 
10:51:04 -  DriveLetter  : D
 
10:51:04 - SettingsFile: >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\config\FindVUK.ini<
10:51:04 - Logfile >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\log\2025-07-17_FindVUK.txt< Default Loglevel >2<
10:51:04 - Update enabled - check for update
10:51:04 - No update required
10:51:04 - Open Main-KEYDB file: >C:\Users\kaito\AppData\Roaming\aacs\KEYDB.cfg<
10:51:11 - Open Backup-KEYDB file: >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\VUKbackup\KEYDB.cfg<
-------------------------------------------------------------------------------
10:51:11 - Get basic AACS data
-------------------------------------------------------------------------------
10:51:11 - AACS folder on disc is reachable - Validate is possible
10:51:15 - VolumeName         >BD_ROM<
10:51:15 - DiscId             >F13D7878F137E3A4D585CF57ADF688AB3A12A0CB< (2025-06-13)
10:51:15 - DiscType           >BD<
10:51:15 - MKB Revision       >82<
10:51:15 - Disc-BusEncEnabled >1<
10:51:15 - Drve-BusEncCapable >1<
10:51:15 -  ==> Bus Encryption active!
10:51:15 - UnitKeyCount       >1<
10:51:15 -  >>> UnitKeyENC (1) >54B61B912125C4EFDD260A02031A2298<
10:51:15 - Data read from KeyDB.cfg:
10:51:15 -  VolumeId: 
10:51:15 -  MediaKey: 
10:51:15 -  VUK:      
10:51:15 -  UnitKeys (1):
10:51:15 -  >>> UnitKeyDEC (1) >A18ED9F0FAA96879DF7E7B468CC66D90<
-------------------------------------------------------------------------------
10:51:15 - BusEncryption enabled => either ReadDataKey or disabling of BusEncryption required
-------------------------------------------------------------------------------
10:51:15 - External tool to disable bus encryption defined >"C:\Program Files (x86)\MakeMKV\makemkvcon64.exe" info dev:$DRIVE$ <
10:51:26 - External tool successfully disabled BusEncryption!
-------------------------------------------------------------------------------
10:51:26 -  --- PART 2 --- VALIDATE VUK/UNITKEYS ---
-------------------------------------------------------------------------------
10:51:30 - Information: no bdmv-meta-dl directory available on disc - cannot read meta-title
10:51:30 - Drive is detected as 'REAL BLURAY' drive
10:51:30 - M2TS files found >4<
10:51:30 - Decrypted first unit of file >D:\BDMV\STREAM\00000.m2ts< with UnitKey >1<
10:51:30 - All UnitKeys are VALID! No need to test other files
 
-------------------------------------------------------------------------------
10:51:30 - Validation successful! UnitKeys are valid!!
-------------------------------------------------------------------------------
 
10:51:30 - Disc with ID >F13D7878F137E3A4D585CF57ADF688AB3A12A0CB< is already in file - need to compare the details
10:51:30 - -------------------------------------------------------
10:51:30 -  VolumeName  : BD_ROM
10:51:30 -  DiscID      : F13D7878F137E3A4D585CF57ADF688AB3A12A0CB
10:51:30 -  DateDiscID  : 2025-06-13
10:51:30 -  DiscType    : BD
10:51:30 -  VUK         : 
10:51:30 -  MEDIAKEY    : 
10:51:30 -  VOLUMEID    : 
10:51:30 -  >>> UnitKeyDEC (1) >A18ED9F0FAA96879DF7E7B468CC66D90< (Valid)
10:51:30 -  MKBrev      : 82
10:51:31 -  BusEncrEn   : 1
10:51:31 -  AACS        : 1
10:51:31 -  BD+         : 0
10:51:31 - -------------------------------------------------------
 
 
-------------------------------------------------------------------------------
10:51:31 - --- Write entry in main-keydb file ---
-------------------------------------------------------------------------------
 
10:51:31 - Keys in Keyfile: 167318 keys - KeyFile: C:\Users\kaito\AppData\Roaming\aacs\KEYDB.cfg
10:51:31 - Disc with ID >F13D7878F137E3A4D585CF57ADF688AB3A12A0CB< is already in file - need to compare the details
 
10:51:31 - KEYDB: Identical entry already present in keydb-file
10:51:31 -  >> Identical:  TITLE, VUK, DATE, MEDIAKEY, VOLUMEID, UNITKEYS, COMMENT - Different: nothing >> will NOT write new entry in keydb-file
 
10:51:31 - Identical entry already present in keydb-file - file is not changed
 
 
-------------------------------------------------------
10:51:31 - --- Write entry in backup-keydb file ---
-------------------------------------------------------
 
10:51:31 - KEYDB: file >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\VUKbackup\KEYDB.cfg< does not exist ==>> write new entry in keydb-file
 
10:51:31 - Added line with VUK/UnitKeys to file >C:\Users\kaito\Downloads\KeyDB_Helper_1.0.1.5\FindVUK\VUKbackup\KEYDB.cfg<
 
10:51:31 - -------------------------------------------------------
10:51:31 - --- Upload MetaXML to OnlineDB file ---
10:51:31 - -------------------------------------------------------
Establishing connection
Establishing connection
HTTP-POST success
10:51:32 - Successfully posted to the OnlineDB! >
Preconditions fulfilled - process upload now 
Detected BlurayMetaXML - DiscId >F13D7878F137E3A4D585CF57ADF688AB3A12A0CB< 
Upload written to database! 
Meta-Upload successfully processed!
<
10:51:32 - Successful upload to OnlineDB
10:51:32 - Eject the disc now from drive >D:\<
 
10:51:36 - Successfully ejected the media in drive D!

Code: Select all

MakeMKV v1.18.1 win(x64-release) started
Debug logging enabled, log will be saved as C:\Users\kaito/MakeMKV_log.txt
Using LibreDrive mode (v06.3 id=4FBA32AEC678)
Backing up disc into folder "C:/(edited)/BD_ROM"
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?WtPiyREQ0MyBw2...
Saved AACS dump file as C:\Users\kaito/.MakeMKV/MKB_v82_BD_ROM_C086.tgz
The volume key is unknown for this disc - video can't be decrypted
DEBUG: Code 0 at `{q#WHE]"p5'4|CK:213132721
DEBUG: Code 0 at n44NxOr>=\%f3xEN<2T:121273319
DEBUG: Code 0 at B`ut4y]!X\p5gw'4V:jX:121265338
Backup failed
I have sent you a PM.
Cheers :D
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