[PATCH v4 00/15] crypto: dh - infrastructure for NVM in-band auth and FIPS conformance

[Nicolai Stange <nstange@suse.de>]

Hi all,

first of all, to the people primarily interested in security/keys/, there's
a rather trivial change to security/keys/dh.c in patch 4/15. It would be
great to get ACKs for that...

This patchset's main objective is to provide the DH related preprequisite
bits needed by the upcoming support for NVME in-band authentication ([1]),
namely
- support for the RFC 7919 ffdheXYZ group parameters (patches [1-8/15]) and
- an ephemeral key generation primitive for these (patches [9-11/15]).

With this in place, it happens to become relatively straight-forward to
achieve conformance with NIST SP800-56Ar3. The remainder of this patchset,
i.e. patches [12-15/15], implements the required changes.

The previous v3 of this patchset can be found at [2]. The only difference
between v3 and the v4 here is the removal of a superfluous "default n"
Kconfig statement in patch [7/15] ("crypto: dh - implement ffdheXYZ(dh)
templates").

I would like to reiterate that [12/15] ("crypto: api - allow algs only in
specific constructions in FIPS mode") is heavily based on a patch
previously posted by Herbert. Please refer to the v3 cover letter at [2]
for the full history.

Finally note that Stephan has granted his
Tested-by: Stephan Mueller <smueller@chronox.de>
to v3 already ([3]). Stephan, with the trivial diff between v3 and v4,
would you be Ok with carrying it over?

Thanks,

Nicolai

[1] https://lore.kernel.org/r/20211202152358.60116-1-hare@suse.de
[2] https://lore.kernel.org/r/20220202104012.4193-1-nstange@suse.de
[3] https://lore.kernel.org/r/8937519.l8FpVtv5Hg@tauon.chronox.de

Nicolai Stange (15):
  crypto: kpp - provide support for KPP template instances
  crypto: kpp - provide support for KPP spawns
  crypto: dh - remove struct dh's ->q member
  crypto: dh - constify struct dh's pointer members
  crypto: dh - split out deserialization code from crypto_dh_decode()
  crypto: dh - introduce common code for built-in safe-prime group
    support
  crypto: dh - implement ffdheXYZ(dh) templates
  crypto: testmgr - add known answer tests for ffdheXYZ(dh) templates
  crypto: dh - implement private key generation primitive for
    ffdheXYZ(dh)
  crypto: testmgr - add keygen tests for ffdheXYZ(dh) templates
  crypto: dh - allow for passing NULL to the ffdheXYZ(dh)s'
    ->set_secret()
  crypto: api - allow algs only in specific constructions in FIPS mode
  crypto: dh - disallow plain "dh" usage in FIPS mode
  lib/mpi: export mpi_rshift
  crypto: dh - calculate Q from P for the full public key verification

 crypto/Kconfig                |    7 +
 crypto/algapi.c               |   18 +-
 crypto/api.c                  |   19 +-
 crypto/dh.c                   |  687 +++++++++++++++-
 crypto/dh_helper.c            |   42 +-
 crypto/kpp.c                  |   29 +
 crypto/tcrypt.c               |    4 +-
 crypto/testmgr.c              |   61 +-
 crypto/testmgr.h              | 1445 ++++++++++++++++++++++++++++++++-
 include/crypto/dh.h           |   26 +-
 include/crypto/internal/kpp.h |  158 ++++
 include/linux/crypto.h        |    9 +
 lib/mpi/mpi-bit.c             |    1 +
 security/keys/dh.c            |    2 +-
 14 files changed, 2441 insertions(+), 67 deletions(-)

-- 
2.26.2