netdev - Re: Why the auxiliary cipher in gss_krb5

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Date:   Sat, 5 Dec 2020 08:08:55 +1100
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     David Howells <dhowells@...hat.com>,
        Bruce Fields <bfields@...ldses.org>,
        Chuck Lever <chuck.lever@...cle.com>,
        CIFS <linux-cifs@...r.kernel.org>,
        Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
        "open list:BPF JIT for MIPS (32-BIT AND 64-BIT)" 
        <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        linux-fsdevel@...r.kernel.org, linux-afs@...ts.infradead.org
Subject: Re: Why the auxiliary cipher in gss_krb5_crypto.c?

On Fri, Dec 04, 2020 at 06:35:48PM +0100, Ard Biesheuvel wrote:
>
> Herbert recently made some changes for MSG_MORE support in the AF_ALG
> code, which permits a skcipher encryption to be split into several
> invocations of the skcipher layer without the need for this complexity
> on the side of the caller. Maybe there is a way to reuse that here.
> Herbert?

Yes this was one of the reasons I was persuing the continuation
work.  It should allow us to kill the special case for CTS in the
krb5 code.

Hopefully I can get some time to restart work on this soon.

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