linux-kernel - Re: [PATCH 01/19] User-space API definition

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Message-ID: <AANLkTinzUuihbS_Znm1rgxPPxiLTXeNx8ySF8LHqU=Jz@mail.gmail.com>
Date:	Sat, 21 Aug 2010 09:09:58 -0400
From:	Kyle Moffett <kyle@...fetthome.net>
To:	Miloslav Trmač <mitr@...hat.com>
Cc:	Herbert Xu <herbert@...dor.hengli.com.au>,
	linux-crypto@...r.kernel.org,
	Nikos Mavrogiannopoulos <n.mavrogiannopoulos@...il.com>,
	Neil Horman <nhorman@...hat.com>, linux-kernel@...r.kernel.org,
	David Howells <dhowells@...hat.com>
Subject: Re: [PATCH 01/19] User-space API definition

On Fri, Aug 20, 2010 at 04:45, Miloslav Trmač <mitr@...hat.com> wrote:
> This patch introduces the new user-space API, <ncr.h>.
>
> Quick overview:
>
> * open("/dev/crypto") to get a FD, which acts as a namespace for key and
>  session identifiers.
>
> * ioctl(NCRIO_KEY_INIT) to allocate a key object; then generate the key
>  material inside the kernel, load a plaintext key, unwrap a key, or
>  derive a key.  Similarly the key material can be copied out of the
>  kernel or wrapped.
>
> [...snip...]

Ugh... We already have one very nice key/keyring API in the kernel
(see Documentation/keys.txt) that's being used for crypto keys for
NFSv4, AFS, etc.  Can't you just add a bunch of cryptoapi key types to
that API instead?

David Howells added to CC, since I believe he wrote most of that code initially.

Cheers,
Kyle Moffett
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