From: Nicolai Stange <nstange@suse.de>
To: Hannes Reinecke <hare@suse.de>
Cc: "Nicolai Stange" <nstange@suse.de>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
"Stephan Müller" <smueller@chronox.de>,
"Torsten Duwe" <duwe@suse.de>, "Zaibo Xu" <xuzaibo@huawei.com>,
"Giovanni Cabiddu" <giovanni.cabiddu@intel.com>,
"David Howells" <dhowells@redhat.com>,
"Jarkko Sakkinen" <jarkko@kernel.org>,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
qat-linux@intel.com, keyrings@vger.kernel.org
Subject: Re: [PATCH 03/18] crypto: dh - optimize domain parameter serialization for well-known groups
Date: Thu, 09 Dec 2021 10:08:05 +0100 [thread overview]
Message-ID: <87wnkervre.fsf@suse.de> (raw)
In-Reply-To: <418bccca-9d84-76b3-1f87-03b677688ca4@suse.de> (Hannes Reinecke's message of "Wed, 1 Dec 2021 08:17:22 +0100")
Hannes Reinecke <hare@suse.de> writes:
> On 12/1/21 1:48 AM, Nicolai Stange wrote:
>> diff --git a/crypto/dh_helper.c b/crypto/dh_helper.c
>> index aabc91e4f63f..a6c9389d8219 100644
>> --- a/crypto/dh_helper.c
>> +++ b/crypto/dh_helper.c
>> @@ -10,7 +10,32 @@
>> #include <crypto/dh.h>
>> #include <crypto/kpp.h>
>> -#define DH_KPP_SECRET_MIN_SIZE (sizeof(struct kpp_secret) + 3 *
>> sizeof(int))
>> +#define DH_KPP_SECRET_MIN_SIZE (sizeof(struct kpp_secret) + \
>> + sizeof(enum dh_group_id) + 3 * sizeof(int))
>
> That is not a good practise; 'enum' doesn't have a defined size, and
> will typically default to 'unsigned int'.
> But this might well be compiler dependent, so I suggest using a fixes
> size here.
Good point, in particular as a certain encoding is assumed for the test
vectors. Changed in v2.
Thanks,
Nicolai
--
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg), GF: Ivo Totev
next prev parent reply other threads:[~2021-12-09 9:08 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-01 0:48 [PATCH 00/18] crypto: dh - infrastructure for NVM in-band auth and FIPS conformance Nicolai Stange
2021-12-01 0:48 ` [PATCH 01/18] crypto: dh - remove struct dh's ->q member Nicolai Stange
2021-12-01 7:11 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 02/18] crypto: dh - constify struct dh's pointer members Nicolai Stange
2021-12-01 7:13 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 03/18] crypto: dh - optimize domain parameter serialization for well-known groups Nicolai Stange
2021-12-01 7:17 ` Hannes Reinecke
2021-12-09 9:08 ` Nicolai Stange [this message]
2021-12-01 0:48 ` [PATCH 04/18] crypto: dh - introduce RFC 7919 safe-prime groups Nicolai Stange
2021-12-01 7:23 ` Hannes Reinecke
2021-12-09 9:10 ` Nicolai Stange
2021-12-01 0:48 ` [PATCH 05/18] crypto: testmgr - add DH RFC 7919 ffdhe2048 test vector Nicolai Stange
2021-12-01 7:24 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 06/18] crypto: dh - introduce RFC 3526 safe-prime groups Nicolai Stange
2021-12-01 7:24 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 07/18] crypto: testmgr - add DH RFC 3526 modp2048 test vector Nicolai Stange
2021-12-01 7:25 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 08/18] crypto: testmgr - run only subset of DH vectors based on config Nicolai Stange
2021-12-01 7:28 ` Hannes Reinecke
2021-12-09 9:18 ` Nicolai Stange
2021-12-01 0:48 ` [PATCH 09/18] crypto: dh - implement private key generation primitive Nicolai Stange
2021-12-01 7:28 ` Hannes Reinecke
2021-12-05 5:52 ` Stephan Müller
2021-12-08 6:20 ` Nicolai Stange
2021-12-08 7:16 ` Stephan Mueller
2021-12-01 0:48 ` [PATCH 10/18] crypto: dh - introduce support for ephemeral key generation to dh-generic Nicolai Stange
2021-12-01 7:29 ` Hannes Reinecke
2021-12-05 6:11 ` Stephan Müller
2021-12-08 6:32 ` Nicolai Stange
2021-12-01 0:48 ` [PATCH 11/18] crypto: dh - introduce support for ephemeral key generation to hpre driver Nicolai Stange
2021-12-01 7:30 ` Hannes Reinecke
2021-12-05 6:11 ` Stephan Müller
2021-12-01 0:48 ` [PATCH 12/18] crypto: dh - introduce support for ephemeral key generation to qat driver Nicolai Stange
2021-12-01 7:30 ` Hannes Reinecke
2021-12-05 6:11 ` Stephan Müller
2021-12-01 0:48 ` [PATCH 13/18] crypto: testmgr - add DH test vectors for key generation Nicolai Stange
2021-12-01 7:31 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 14/18] lib/mpi: export mpi_rshift Nicolai Stange
2021-12-01 7:32 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 15/18] crypto: dh - store group id in dh-generic's dh_ctx Nicolai Stange
2021-12-01 7:32 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 16/18] crypto: dh - calculate Q from P for the full public key verification Nicolai Stange
2021-12-01 7:33 ` Hannes Reinecke
2021-12-05 6:07 ` Stephan Müller
2021-12-08 6:41 ` Nicolai Stange
2021-12-01 0:48 ` [PATCH 17/18] crypto: dh - try to match domain parameters to a known safe-prime group Nicolai Stange
2021-12-01 7:34 ` Hannes Reinecke
2021-12-01 0:48 ` [PATCH 18/18] crypto: dh - accept only approved safe-prime groups in FIPS mode Nicolai Stange
2021-12-01 7:34 ` Hannes Reinecke
2021-12-09 9:26 ` Nicolai Stange
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