openwall / openwall/john

Add support for MAC verification in BitLocker formats

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#2,895 5 comments 0 reactions 0 assignees View on GitHub

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enhancement
Dominant language
C
Stars
13.6k
Forks
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PR merge metrics
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Description

Links,

Maybe @e-ago will submit a PR soon? :-)

This MAC check discovery is a solid improvement over existing verification techniques. Great work!

@e-ago How much is the speed difference between the new MAC verification method and the older "strict check" method? Would it be possible to make the MAC verification method the default option?

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Research direction

Start by reviewing the three linked commits (5268e0d7, b28c8e6f, and 30ee62bb) and the existing BitLocker format implementation. Determine how MAC verification would integrate with the current strict-check path, then establish whether the expected result includes making it the default and measuring the speed difference.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
security
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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