MakeMKV’s new ‘hashed keys’ feature promises free, unlimited, ripping of Ultra HD Blu-ray discs

Posted 15 January 2018 00:54 CET by Jan Willem Aldershoff

The author of MakeMKV has found a way to retrieve AACS 2.0 keys from Ultra HD Blu-ray discs. His method paves the way for ripping more discs than currently possible with the leaked AACS 2.0 Volume Keys. His method is called ‘hashed keys’ and the feature is currently exclusive to MakeMKV. It’s available in the software right now.

Where previously either DeUHD or software that supported the leaked AACS 2.0 Volume Keys, were the only option to rip/backup Ultra HD Blu-ray discs, there is now a third option. Today the author of MakeMKV has posted that his software now supports a new key format called ‘hashed keys’ that, according to the author, “is superior to KEYDB.cfg file format, as entries are smaller, have integrity checking, much faster to verify and have few other good properties.”

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The ‘hashed keys’ are one way compatible with the leaked AACS 2.0 Volume Keys. The latter can be converted to ‘hashed keys’ but ‘hashed keys’ can’t be converted to AACS 2.0 Volume Keys. The latest version of MakeMKV is now able to read both types of keys from a single file. The author has made a text file available that contains all his hashed keys and the leaked AACS 2.0 Volume Keys.

It appears there will be a pretty much unlimited supply of keys, as it appears they can be retrieved from dumps created by the MakeMKV software. The author is calling for users to send dumps from discs that are not supported yet, so he can add support for them.

The ‘hashed keys’ features is right now available in MakeMKV 1.10.9.

Discuss this in our Ultra HD Blu-ray Forum.

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