Re: [PATCH v4 4/4] security: DH - use KDF implementation from crypto API

From: Mat Martineau
Date: Fri Nov 19 2021 - 13:36:09 EST


On Fri, 19 Nov 2021, Stephan Müller wrote:

The kernel crypto API provides the SP800-108 counter KDF implementation.
Thus, the separate implementation provided as part of the keys subsystem
can be replaced with calls to the KDF offered by the kernel crypto API.

The keys subsystem uses the counter KDF with a hash primitive. Thus,
it only uses the call to crypto_kdf108_ctr_generate.

Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx>
---
security/keys/Kconfig | 2 +-
security/keys/dh.c | 109 +++++++-----------------------------------
2 files changed, 19 insertions(+), 92 deletions(-)

Acked-by: Mat Martineau <mathew.j.martineau@xxxxxxxxxxxxxxx>


--
Mat Martineau
Intel