From: "Horia Geantă" <horia.geanta@nxp.com>
To: Herbert Xu <herbert@gondor.apana.org.au>,
"Van Leeuwen, Pascal" <pvanleeuwen@rambus.com>
Cc: "Andrei Botila (OSS)" <andrei.botila@oss.nxp.com>,
"David S. Miller" <davem@davemloft.net>,
"linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>,
"linux-arm-kernel@axis.com" <linux-arm-kernel@axis.com>,
Andrei Botila <andrei.botila@nxp.com>,
Antoine Tenart <antoine.tenart@bootlin.com>
Subject: Re: [PATCH 19/22] crypto: inside-secure - add check for xts input length equal to zero
Date: Mon, 10 Aug 2020 17:33:39 +0300 [thread overview]
Message-ID: <fd3e5862-3357-7dfc-6c75-30086ab19f82@nxp.com> (raw)
In-Reply-To: <20200810134500.GA22914@gondor.apana.org.au>
On 8/10/2020 4:45 PM, Herbert Xu wrote:
> On Mon, Aug 10, 2020 at 10:20:20AM +0000, Van Leeuwen, Pascal wrote:
>>
>> With all due respect, but this makes no sense.
>
> I agree. This is a lot of churn for no gain.
>
I would say the gain is that all skcipher algorithms would behave the same
when input length equals zero - i.e. treat the request as a no-op.
We can't say "no input" has any meaning to the other skcipher algorithms,
but the convention is to accept this case and just return 0.
I don't see why XTS has to be handled differently.
Thanks,
Horia
next prev parent reply other threads:[~2020-08-10 14:33 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-07 16:19 [PATCH 00/22] crypto: add check for xts input length equal to zero Andrei Botila
2020-08-07 16:19 ` [PATCH 01/22] crypto: arm/aes-ce - " Andrei Botila
2020-08-07 16:19 ` [PATCH 02/22] crypto: arm/aes-neonbs " Andrei Botila
2020-08-07 16:19 ` [PATCH 03/22] crypto: arm64/aes " Andrei Botila
2020-08-07 16:19 ` [PATCH 04/22] crypto: arm64/aes-neonbs " Andrei Botila
2020-08-07 16:19 ` [PATCH 05/22] crypto: powerpc/aes-spe " Andrei Botila
2020-08-07 16:19 ` [PATCH 06/22] crypto: s390/aes " Andrei Botila
2020-08-07 16:19 ` [PATCH 07/22] crypto: s390/paes " Andrei Botila
2020-08-07 16:19 ` [PATCH 08/22] crypto: x86/glue_helper " Andrei Botila
2020-08-07 16:19 ` [PATCH 09/22] crypto: xts - add check for block " Andrei Botila
2020-08-07 16:19 ` [PATCH 10/22] crypto: atmel-aes - add check for xts input " Andrei Botila
2020-08-07 18:06 ` kernel test robot
2020-08-07 16:19 ` [PATCH 11/22] crypto: artpec6 " Andrei Botila
2020-08-07 16:20 ` [PATCH 12/22] crypto: bcm " Andrei Botila
2020-08-07 16:20 ` [PATCH 13/22] crypto: cavium/cpt " Andrei Botila
2020-08-07 16:20 ` [PATCH 14/22] crypto: cavium/nitrox " Andrei Botila
2020-08-07 16:20 ` [PATCH 15/22] crypto: ccp " Andrei Botila
2020-08-07 16:20 ` [PATCH 16/22] crypto: ccree " Andrei Botila
2020-08-08 12:10 ` Gilad Ben-Yossef
2020-08-07 16:20 ` [PATCH 17/22] crypto: chelsio " Andrei Botila
2020-08-07 16:20 ` [PATCH 18/22] crypto: hisilicon/sec " Andrei Botila
2020-08-07 16:20 ` [PATCH 19/22] crypto: inside-secure " Andrei Botila
2020-08-10 10:20 ` Van Leeuwen, Pascal
2020-08-10 13:45 ` Herbert Xu
2020-08-10 14:33 ` Horia Geantă [this message]
2020-08-10 17:03 ` Eric Biggers
2020-08-11 15:28 ` Horia Geantă
2020-08-12 0:36 ` Herbert Xu
2020-08-10 21:37 ` Van Leeuwen, Pascal
2020-08-07 16:20 ` [PATCH 20/22] crypto: octeontx " Andrei Botila
2020-08-07 16:20 ` [PATCH 21/22] crypto: qce " Andrei Botila
2020-08-07 17:59 ` Stanimir Varbanov
2020-08-07 16:20 ` [PATCH 22/22] crypto: vmx " Andrei Botila
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