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I'm using cryptsetup to open TrueCrypt encrypted NTFS filesystems:
cryptsetup tcryptOpen /dev/sdf2 tcrypt
At least until linux-image-3.13.0-79-generic this work fine.
Booting linux-image-3.13.0-83-generic and running cryptsetup results in:
Required kernel crypto interface not available.
Ensure you have algif_skcipher kernel module loaded.
The module algif_skcipher is loaded, so the tenor of the error message
is wrong, but cryptsetup cannot open the container, so at least there
_is_ some error. Probably it's related to some unsupported instruction
set. With linux-image-3.13.0-83 there are errors in dmesg which are not
present with linux-image-3.13.0-79:
AVX instructions are not detected
System information:
OS: Ubuntu 14.04.4 LTS
CPU: Phenom II X6
TCRYPT header information for /dev/sdf2
Version: 5
Driver req.: 7
Sector size: 512
MK offset: 131072
PBKDF2 hash: ripemd160
Cipher chain: aes
Cipher mode: xts-plain64
MK bits: 512
** Affects: linux (Ubuntu)
Importance: Medium
Status: Confirmed
** Tags: avx cryptsetup dm-crypt kernel kernel-da-key needs-bisect trusty
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cryptsetup tcryptOpen doesn't work anymore
https://bugs.launchpad.net/bugs/1558079
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