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From: "Morten Brørup" <mb@smartsharesystems.com>
To: "Stephen Hemminger" <stephen@networkplumber.org>,
	"Kai Ji" <kai.ji@intel.com>
Cc: <dev@dpdk.org>, <gakhil@marvell.com>,
	<konstantin.ananyev@huawei.com>, <bruce.richardson@intel.com>,
	<thomas@monjalon.net>, <stable@dpdk.org>
Subject: RE: [dpdk-dev v4 1/2] eal: Add mem equal and non-equal to prevent timing attacks memcmp.
Date: Tue, 30 Sep 2025 08:16:07 +0200	[thread overview]
Message-ID: <98CBD80474FA8B44BF855DF32C47DC35F65482@smartserver.smartshare.dk> (raw)
In-Reply-To: <20250929154838.2f0741f7@hermes.local>

> From: Stephen Hemminger [mailto:stephen@networkplumber.org]
> Sent: Tuesday, 30 September 2025 00.49
> 
> On Mon, 29 Sep 2025 19:48:19 +0200
> Morten Brørup <mb@smartsharesystems.com> wrote:
> 
> > > From: Kai Ji [mailto:kai.ji@intel.com]
> > > Sent: Monday, 29 September 2025 16.51
> > >
> > > Bugzilla ID: 1773
> > > Cc: stable@dpdk.org
> > >
> > > [0] https://bugs.dpdk.org/show_bug.cgi?id=1773
> > >
> > > Signed-off-by: Kai Ji <kai.ji@intel.com>
> > > ---
> >
> > Acked-by: Morten Brørup <mb@smartsharesystems.com>
> >
> > @Stephen: V4 also includes equal, which you was asking for.
> >
> 
> The point is that we should only have the eq variant.
> Having the not equal is unnecessary addition.

Yes, I would tend to agree with Stephen on this.


  reply	other threads:[~2025-09-30  6:16 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-25 10:22 [dpdk-dev v1] cryptodev: introduce constant-time memory comparison Kai Ji
2025-09-25 10:33 ` [EXTERNAL] " Akhil Goyal
2025-09-25 20:47   ` Thomas Monjalon
2025-09-26  7:55     ` Bruce Richardson
2025-09-26  7:58       ` Bruce Richardson
2025-09-26 12:34       ` Morten Brørup
2025-09-26  8:13     ` Konstantin Ananyev
2025-09-26  8:16       ` Konstantin Ananyev
2025-09-26 15:49 ` [dpdk-dev v2 1/2] eal: Add rte_consttime_memsq() to prevent timing attacks memcmp Kai Ji
2025-09-26 15:49   ` [dpdk-dev v2 2/2] crypto/ipsec-mb: use constant-time memory comparison Kai Ji
2025-09-26 16:02   ` [dpdk-dev v3 1/2] eal: Add rte_consttime_memneq() to prevent timing attacks memcmp Kai Ji
2025-09-26 16:02     ` [dpdk-dev v3 2/2] crypto/ipsec-mb: use constant-time memory comparison Kai Ji
2025-09-26 18:12     ` [dpdk-dev v3 1/2] eal: Add rte_consttime_memneq() to prevent timing attacks memcmp Stephen Hemminger
2025-09-26 19:17     ` Morten Brørup
2025-09-26 20:15       ` Stephen Hemminger
2025-09-29 14:50     ` [dpdk-dev v4 1/2] eal: Add mem equal and non-equal " Kai Ji
2025-09-29 14:50       ` [dpdk-dev v4 2/2] crypto/ipsec-mb: use constant-time memory comparison Kai Ji
2025-09-29 23:54         ` Stephen Hemminger
2025-09-29 16:32       ` [dpdk-dev v4 1/2] eal: Add mem equal and non-equal to prevent timing attacks memcmp Stephen Hemminger
2025-09-29 17:48       ` Morten Brørup
2025-09-29 22:48         ` Stephen Hemminger
2025-09-30  6:16           ` Morten Brørup [this message]
2025-09-26 18:07   ` [dpdk-dev v2 1/2] eal: Add rte_consttime_memsq() " Stephen Hemminger
2025-09-29  7:39     ` Bruce Richardson
2025-09-29 23:43   ` Stephen Hemminger

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