AACS - newer version of AACS protection can't decrypt

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maomaococo
Posts: 1
Joined: Tue Apr 22, 2025 4:34 pm

AACS - newer version of AACS protection can't decrypt

Post by maomaococo »

Same as title,
Help would be very much appreciated

Will be attaching the dump here. 2 files total.

And I did try downloading the latest KEYDB.cfg file, copying it into MakeMKV's data directory
but that didn't work as well.
Attachments
MKB_v82_MyGO!!!!!_6th_Single「聿日箋秋」【Blu-ray付生産限定盤】DISC1_5252.tgz
(92.63 KiB) Downloaded 668 times
MrPenguin
Posts: 917
Joined: Thu Oct 19, 2023 11:31 pm

Re: AACS - newer version of AACS protection can't decrypt

Post by MrPenguin »

maomaococo wrote:
Tue Apr 22, 2025 4:44 pm
And I did try downloading the latest KEYDB.cfg file, copying it into MakeMKV's data directory
but that didn't work as well.
I recommend installing FindVUK.exe and running "findvuk synchronize" occasionally, because I would expect KEYDB.cfg to acquire your key now that you've provided a TGZ dump file.

Or maybe even use SamuriHL's tool?
SamuriHL
Posts: 2515
Joined: Mon Jun 14, 2010 5:32 pm

Re: AACS - newer version of AACS protection can't decrypt

Post by SamuriHL »

If set up correctly my tool has a few benefits.

1) It synchronizes the keydb with FindVUK under the covers, then copies it to the appropriate MakeMKV data directory to ensure MakeMKV uses it
2) If you add the known MKB v82 device key to your keydb.cfg (I lay out the instructions in the post about my tool) it will find your key for you, add it to the keydb using FindVUK ValidateDisc which creates a validated keydb entry, and then copies the newly updated keydb.cfg to your MakeMKV data directory

Added bonus is that because KeyDB Helper uses LibreDrive to retrieve the VID, bus encrypted blu-rays aren't a problem even though the latest cert is revoked in MKB v82. So while I get there's some initial pain in getting everything set up, once it's done you just have to insert your disc, hit the synchronize button to pull the latest keydb and then the Disc Info button to ensure your disc is supported both in the keydb and in MakeMKV. I tried to make it as simple as I could to operate.
mcleveland92
Posts: 17
Joined: Mon Nov 28, 2022 3:32 am

Re: AACS - newer version of AACS protection can't decrypt

Post by mcleveland92 »

I vouch for KeyDB Helper - it really did help me a lot when trying to resolve this.
SamuriHL wrote:
Tue Apr 22, 2025 7:40 pm
If set up correctly my tool has a few benefits.

1) It synchronizes the keydb with FindVUK under the covers, then copies it to the appropriate MakeMKV data directory to ensure MakeMKV uses it
2) If you add the known MKB v82 device key to your keydb.cfg (I lay out the instructions in the post about my tool) it will find your key for you, add it to the keydb using FindVUK ValidateDisc which creates a validated keydb entry, and then copies the newly updated keydb.cfg to your MakeMKV data directory

Added bonus is that because KeyDB Helper uses LibreDrive to retrieve the VID, bus encrypted blu-rays aren't a problem even though the latest cert is revoked in MKB v82. So while I get there's some initial pain in getting everything set up, once it's done you just have to insert your disc, hit the synchronize button to pull the latest keydb and then the Disc Info button to ensure your disc is supported both in the keydb and in MakeMKV. I tried to make it as simple as I could to operate.
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