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| author | Theodore Ts'o <tytso@mit.edu> | 2015-05-01 22:56:50 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2015-05-01 22:56:50 +0200 |
| commit | a44cd7a05496d60fd2ba8cca080e3db8f481549b (patch) | |
| tree | dd8d05d845817e4a429804d8ffe09dd68b6881e6 /security | |
| parent | ext4 crypto: simplify and speed up filename encryption (diff) | |
| download | linux-a44cd7a05496d60fd2ba8cca080e3db8f481549b.tar.xz linux-a44cd7a05496d60fd2ba8cca080e3db8f481549b.zip | |
ext4 crypto: add padding to filenames before encrypting
This obscures the length of the filenames, to decrease the amount of
information leakage. By default, we pad the filenames to the next 4
byte boundaries. This costs nothing, since the directory entries are
aligned to 4 byte boundaries anyway. Filenames can also be padded to
8, 16, or 32 bytes, which will consume more directory space.
Change-Id: Ibb7a0fb76d2c48e2061240a709358ff40b14f322
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions