linux-kernel - Re: [PATCH 06/18] asymmetric keys: support parsing PKCS #8 private key information

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Message-ID: <20130825161012.GC5171@amd.pavel.ucw.cz>
Date:	Sun, 25 Aug 2013 18:10:12 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Lee, Chun-Yi" <joeyli.kernel@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-efi@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-crypto@...r.kernel.org,
	opensuse-kernel@...nsuse.org, David Howells <dhowells@...hat.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Len Brown <len.brown@...el.com>,
	Josh Boyer <jwboyer@...hat.com>,
	Vojtech Pavlik <vojtech@...e.cz>,
	Matt Fleming <matt.fleming@...el.com>,
	James Bottomley <james.bottomley@...senpartnership.com>,
	Greg KH <gregkh@...uxfoundation.org>, JKosina@...e.com,
	Rusty Russell <rusty@...tcorp.com.au>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	"H. Peter Anvin" <hpa@...or.com>, Michal Marek <mmarek@...e.cz>,
	Gary Lin <GLin@...e.com>, Vivek Goyal <vgoyal@...hat.com>,
	"Lee, Chun-Yi" <jlee@...e.com>
Subject: Re: [PATCH 06/18] asymmetric keys: support parsing PKCS #8 private
 key information

On Thu 2013-08-22 19:01:45, Lee, Chun-Yi wrote:
> Add ASN.1 files and parser to support parsing PKCS #8 noncompressed private
> key information. It's better than direct parsing pure private key because
> PKCS #8 has a privateKeyAlgorithm to indicate the algorithm of private
> key, e.g. RSA from PKCS #1
> 
> Reviewed-by: Jiri Kosina <jkosina@...e.cz>
> Signed-off-by: Lee, Chun-Yi <jlee@...e.com>


> +#include <crypto/public_key.h>
> +
> +struct pkcs8_info {
> +	enum pkey_algo privkey_algo:8;		/* Private key algorithm */

Are you sure this is well-defined?

> +struct private_key_algorithm *pkcs8_private_key_algorithms[PKEY_ALGO__LAST] = {
> +	[PKEY_ALGO_DSA]         = NULL,
> +#if defined(CONFIG_PUBLIC_KEY_ALGO_RSA) || \
> +	defined(CONFIG_PUBLIC_KEY_ALGO_RSA_MODULE)
> +	[PKEY_ALGO_RSA]         = &RSA_private_key_algorithm,
> +#endif
> +};

  pkey_algo
  privkey_algo
  private_key_algorithm

...you use all variants.

Having symbols with "__" inside them is "interesting". I'd not do it.
										Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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