[pkg-cryptsetup-devel] Bug#786578: cryptsetup: crypt asks passphrase instead of using keyfile

Guilhem Moulin guilhem at guilhem.org
Wed Dec 9 18:58:32 UTC 2015


I forgot an important piece of information: UMASK should be changed to
0077 to ensure that regular users can't access the keys.

-8<------------------------------------------------------------------>8-
diff --git a/debian/README.initramfs b/debian/README.initramfs
index ce7e01a..85f8828 100644
--- a/debian/README.initramfs
+++ b/debian/README.initramfs
@@ -239,6 +239,10 @@ following to initramfs.conf to add them to the initrd.
 
   KEYFILE_PATTERN="/etc/keys/*.key"
   export KEYFILE_PATTERN
+  UMASK=0077
+
+(If the initramfs image is to contain private key material, you'll want
+create it with a restrictive umask.)
 
  -- David Härdeman <david at hardeman.nu>
  -- Jonas Meurer <mejo at debian.org>  Thu, 01 Nov 2012 13:44:31 +0100
-8<------------------------------------------------------------------>8-

-- 
Guilhem
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