Bug 243676 - geom_eli geli: Erroneously accepts weak (short) keys
Summary: geom_eli geli: Erroneously accepts weak (short) keys
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: CURRENT
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-geom mailing list
Depends on:
Reported: 2020-01-28 17:23 UTC by Conrad Meyer
Modified: 2020-01-28 17:25 UTC (History)
0 users

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Description Conrad Meyer freebsd_committer 2020-01-28 17:23:27 UTC
Entropy is cheap.  We should reject keyfiles smaller than 256 bits at initialization time.  At attach, we should clearly continue allowing people to access their existing volumes, but maybe a warning would be appropriate?  Today, GELI allows initialization with small and empty keyfiles (init -K, attach -k).  These should be rejected.