From: David Laight <David.Laight@ACULAB.COM>
To: 'Dongsoo Lee' <letrhee@nsr.re.kr>,
Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
"Jens Axboe" <axboe@kernel.dk>,
Eric Biggers <ebiggers@kernel.org>,
"Theodore Y. Ts'o" <tytso@mit.edu>,
Jaegeuk Kim <jaegeuk@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: "linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-fscrypt@vger.kernel.org" <linux-fscrypt@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH v6 RESEND 5/5] crypto: LEA block cipher x86_64 optimization
Date: Fri, 12 Jan 2024 12:59:56 +0000 [thread overview]
Message-ID: <cbd8de6ff70849a98faf2fd25b065a94@AcuMS.aculab.com> (raw)
In-Reply-To: <20240112022859.2384-6-letrhee@nsr.re.kr>
From: Dongsoo Lee
> Sent: 12 January 2024 02:29
>
> For the x86_64 environment, we use AVX-512F/AVX2/SSE2 instructions.
> Since LEA uses 128-bit blocks of four 32-bit integers, for optimization,
> SSE2 encrypts 4 blocks, AVX2 encrypts 4/8 blocks, and AVX-512F encrypts
> 4/8/16 blocks at a time.
>
> Our submission provides a optimized implementation of ECB, CBC
> decryption, CTR, and XTS cipher operation modes on x86_64 CPUs
> supporting.
Given you say in 0/0:
The LEA algorithm is a lightweight block cipher that processes data blocks of 128-bits and has three different key lengths, each with a different number of rounds:
Just how big is it ?
Doesn't look 'lightweight' to me.
David
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next prev parent reply other threads:[~2024-01-12 13:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-12 2:28 [PATCH v6 RESEND 0/5] crypto: LEA block cipher implementation Dongsoo Lee
2024-01-12 2:28 ` [PATCH v6 RESEND 1/5] " Dongsoo Lee
2024-01-12 2:28 ` [PATCH v6 RESEND 2/5] crypto: add LEA testmgr tests Dongsoo Lee
2024-01-12 2:28 ` [PATCH v6 RESEND 3/5] blk-crypto: Add LEA-256-XTS blk-crypto support Dongsoo Lee
2024-01-12 2:28 ` [PATCH v6 RESEND 4/5] fscrypt: Add LEA-256-XTS, LEA-256-CTS support Dongsoo Lee
2024-01-12 2:28 ` [PATCH v6 RESEND 5/5] crypto: LEA block cipher x86_64 optimization Dongsoo Lee
2024-01-12 12:59 ` David Laight [this message]
2024-01-15 5:17 ` Dongsoo Lee
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