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From: Herbert Xu <herbert@gondor.apana.org.au>
To: "Horia Geantă" <horia.geanta@nxp.com>
Cc: "Andrei Botila \(OSS\)" <andrei.botila@oss.nxp.com>,
	Andrei Botila <andrei.botila@nxp.com>,
	"Van Leeuwen, Pascal" <pvanleeuwen@rambus.com>,
	Antoine Tenart <antoine.tenart@bootlin.com>,
	"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
	"x86@kernel.org" <x86@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-arm-kernel@axis.com" <linux-arm-kernel@axis.com>,
	Eric Biggers <ebiggers@kernel.org>,
	"linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
	"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
	"David S. Miller" <davem@davemloft.net>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 19/22] crypto: inside-secure - add check for xts input length equal to zero
Date: Wed, 12 Aug 2020 10:36:32 +1000	[thread overview]
Message-ID: <20200812003632.GB4166@gondor.apana.org.au> (raw)
In-Reply-To: <d4a471e6-34c9-c702-63d6-1f6a3cba0ebe@nxp.com>

On Tue, Aug 11, 2020 at 06:28:39PM +0300, Horia Geantă wrote:
>
> What about, for example, CBC?
> AFAICT cbc(aes) with input length = 0 is valid.

That's just because CBC accepts any input which is a multiple
of blocksize.

> Same for CTR (with the note that blocksize = 1) and several other algorithms
> mentioned in the cover letter.

CTR accepts any input size.

> What's the rule in these cases?

What input size is accepted depends on the algorithm.

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

  reply	other threads:[~2020-08-12  0:39 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
2020-08-10 17:03         ` Eric Biggers
2020-08-11 15:28           ` Horia Geantă
2020-08-12  0:36             ` Herbert Xu [this message]
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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