linux-kernel - Re: [PATCH RFC v5 2/4] crypto: add PKE API

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Date:	Mon, 15 Jun 2015 19:21:48 -0700
From:	Tadeusz Struk <tadeusz.struk@...el.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
CC:	linux-kernel@...r.kernel.org, keescook@...omium.org,
	jwboyer@...hat.com, smueller@...onox.de, richard@....at,
	steved@...hat.com, qat-linux@...el.com, dhowells@...hat.com,
	linux-crypto@...r.kernel.org, james.l.morris@...cle.com,
	jkosina@...e.cz, zohar@...ux.vnet.ibm.com, davem@...emloft.net,
	vgoyal@...hat.com
Subject: Re: [PATCH RFC v5 2/4] crypto: add PKE API

On 06/15/2015 04:59 PM, Herbert Xu wrote:
>> > +struct crypto_akcipher {
>> > +	void *key;
> Having a void * pointer here is useless.  The normal way of doing
> it is to place the key into the tfm context.

I thought that the ctx needs to be available for implementations to store private data.
This way we can allocate and store any type of key in the <alg>_parse_key() helper and still have the cxt
available for implementations to use for their stuff (e.g. HW context).
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