Re: [PATCH v5 0/2] generic: test HCTR2 filename encryption

Nathan Huckleberry
2022-08-03T22:42:45Z

On Wed, Aug 3, 2022 at 3:41 PM Nathan Huckleberry <nhuck@google.com> wrote:
>
> This patchset is not intended to be accepted yet. It is reliant on HCTR2
> support in the kernel which has not yet been accepted. See the HCTR2 patchset
> here: https://lore.kernel.org/all/20220520181501.2159644-1-nhuck@google.com/

Oops, I need to remove this.

>
> HCTR2 is a new wide-block encryption mode that can used for filename encryption
> in fscrypt. This patchset adds a reference implementation of HCTR2 to the
> fscrypt testing utility and adds tests for filename encryption with HCTR2.
>
> More information on HCTR2 can be found here: "Length-preserving encryption with
> HCTR2": https://ia.cr/2021/1441
>
> Changes in v5:
> * Added links to relevant references for POLYVAL and HCTR2
> * Removed POLYVAL partial block handling
> * Referenced HCTR2 commit in test
>
> Changes in v4:
> * Add helper functions for HCTR2 hashing
> * Fix accumulator alignment bug
> * Small style fixes
>
> Changes in v3:
> * Consolidate tests into one file
>
> Changes in v2:
> * Use POLYVAL multiplication directly instead of using GHASH trick
> * Split reference implementation and tests into two patches
> * Remove v1 policy tests
> * Various small style fixes
>
> Nathan Huckleberry (2):
> fscrypt-crypt-util: add HCTR2 implementation
> generic: add tests for fscrypt policies with HCTR2
>
> common/encrypt | 2 +
> src/fscrypt-crypt-util.c | 358 ++++++++++++++++++++++++++++++++-------
> tests/generic/900 | 31 ++++
> tests/generic/900.out | 16 ++
> 4 files changed, 350 insertions(+), 57 deletions(-)
> create mode 100755 tests/generic/900
> create mode 100644 tests/generic/900.out
>
> --
> 2.37.1.455.g008518b4e5-goog
>