[dm-devel] [PATCH v4 0/4] crypto: lrw - Fixes and improvements
Ondrej Mosnacek
omosnace at redhat.com
Thu Sep 13 08:51:30 UTC 2018
This patchset contains a corner-case fix and several improvements for
the LRW template.
The first patch fixes an out-of-bounds array access (and subsequently
incorrect cipher output) when the LRW counter goes from all ones to all
zeros. This patch should be applied to the crypto-2.6 tree and also go
to stable.
The second patch adds a test vector for lrw(aes) that covers the above
bug.
The third patch is a small optimization of the LRW tweak computation.
The fourth patch is a follow-up to a similar patch for XTS (it
simplifies away the use of dynamically allocated auxiliary buffer to
cache the computed tweak values):
https://patchwork.kernel.org/patch/10588775/
Patches 2-4 should be applied only to cryptodev-2.6, but they all depend
on the first patch.
Changes in v4:
- applied various corrections/suggestions from Eric Biggers
- added a fix for buggy behavior on counter wrap-around (+ test vector)
v3: https://www.spinics.net/lists/linux-crypto/msg34946.html
Changes in v3:
- fix a copy-paste error
v2: https://www.spinics.net/lists/linux-crypto/msg34890.html
Changes in v2:
- small cleanup suggested by Eric Biggers
v1: https://www.spinics.net/lists/linux-crypto/msg34871.html
Ondrej Mosnacek (4):
crypto: lrw - Fix out-of bounds access on counter overflow
crypto: testmgr - Add test for LRW counter wrap-around
crypto: lrw - Optimize tweak computation
crypto: lrw - Do not use auxiliary buffer
crypto/lrw.c | 342 +++++++++++++----------------------------------
crypto/testmgr.h | 21 +++
2 files changed, 112 insertions(+), 251 deletions(-)
--
2.17.1
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