CasperSecurity
Cryptsetup 1.5.1 Release Notes
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Changes since version 1.5.0
* The libcryptsetup library now tries to initialize device-mapper backend and
loop devices only if they are really needed (lazy initializations).
This allows some operations to be run by a non-root user.
(Unfortunately LUKS header keyslot operations still require temporary dm-crypt
device and device-mapper subsystem is available only to superuser.)
Also clear error messages are provided if running as non-root user and
operation requires privileged user.
* Veritysetup can be now used by a normal user for creating hash image to file
and also it can create hash image if doesn't exist.
(Previously it required pre-allocated space.)
* Added crypt_keyslot_area() API call which allows external tools
to get exact keyslot offsets and analyse content.
An example of a tool that searches the keyslot area of a LUKS container
for positions where entropy is low and hence there is a high probability
of damage is in misc/kesylot_checker.
(Thanks to Arno Wagner for the code.)
* Optimized seek to keyfile-offset if key offset is large.
* Fixed luksHeaderBackup for very old v1.0 unaligned LUKS headers.
* Various fixes for problems found by a several static analysis tools.