linux-kernel - Re: [PATCH RFC v7 2/3] crypto: rsa: add a new rsa generic implementation

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Date:	Tue, 16 Jun 2015 23:10:57 +0100
From:	David Howells <dhowells@...hat.com>
To:	Tadeusz Struk <tadeusz.struk@...el.com>
Cc:	dhowells@...hat.com, herbert@...dor.apana.org.au,
	linux-kernel@...r.kernel.org, keescook@...omium.org,
	jwboyer@...hat.com, smueller@...onox.de, richard@....at,
	steved@...hat.com, qat-linux@...el.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 v7 2/3] crypto: rsa: add a new rsa generic implementation

Tadeusz Struk <tadeusz.struk@...el.com> wrote:

> +static int _rsa_sign(const struct rsa_key *key, MPI s, MPI m)
> +{
> +	/* (1) Validate 0 <= m < n */
> +	if (mpi_cmp_ui(m, 0) < 0 || mpi_cmp(m, key->n) >= 0)
> +		return -EINVAL;

Why -EINVAL not -EBADMSG?

David
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