netdev - Re: [PATCH net 03/24] crypto: Add 'krb5enc' hash and cipher AEAD algorithm

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Message-ID: <Z6XKtPKryJsRfYvK@gondor.apana.org.au>
Date: Fri, 7 Feb 2025 16:56:20 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: David Howells <dhowells@...hat.com>
Cc: netdev@...r.kernel.org, Marc Dionne <marc.dionne@...istor.com>,
	Jakub Kicinski <kuba@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Trond Myklebust <trond.myklebust@...merspace.com>,
	Chuck Lever <chuck.lever@...cle.com>,
	Eric Biggers <ebiggers@...nel.org>,
	Ard Biesheuvel <ardb@...nel.org>, linux-crypto@...r.kernel.org,
	linux-afs@...ts.infradead.org, linux-nfs@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net 03/24] crypto: Add 'krb5enc' hash and cipher AEAD
 algorithm

On Mon, Feb 03, 2025 at 02:23:19PM +0000, David Howells wrote:
>
> [!] Note that the net/sunrpc/auth_gss/ implementation gets a pair of
> ciphers, one non-CTS and one CTS, using the former to do all the aligned
> blocks and the latter to do the last two blocks if they aren't also
> aligned.  It may be necessary to do this here too for performance reasons -
> but there are considerations both ways:

The CTS template will take any hardware accelerated CBC implementation
and turn it into CTS.

So there is no reason to do the CTS/CBC thing by hand at all.

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