linux-kernel - Re: [PATCH v2 11/11] crypto: skcipher: Remove VLA usage for SKCIPHER_REQUEST_ON

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Message-ID: <20180701062419.3opt7mnljf76hi4k@gondor.apana.org.au>
Date:   Sun, 1 Jul 2018 14:24:19 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Kees Cook <keescook@...omium.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        linux-crypto <linux-crypto@...r.kernel.org>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Arnd Bergmann <arnd@...db.de>,
        Eric Biggers <ebiggers@...gle.com>,
        Alasdair Kergon <agk@...hat.com>,
        Giovanni Cabiddu <giovanni.cabiddu@...el.com>,
        Lars Persson <larper@...s.com>,
        Mike Snitzer <snitzer@...hat.com>,
        Rabin Vincent <rabinv@...s.com>,
        Tim Chen <tim.c.chen@...ux.intel.com>, qat-linux@...el.com,
        dm-devel@...hat.com, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 11/11] crypto: skcipher: Remove VLA usage for
 SKCIPHER_REQUEST_ON_STACK

On Wed, Jun 27, 2018 at 05:10:05PM -0700, Kees Cook wrote:
>
> In both cases here, what is "cipher"? i.e. what ciphers could lrw be
> wrapping, and what ciphers could cts be wrapping, so that I can
> examine the blocksizes, etc?

A cipher is a simple cipher like aes that operates on a single
block.

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