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Message-ID: <5580DC30.4030301@intel.com>
Date: Tue, 16 Jun 2015 19:32:16 -0700
From: Tadeusz Struk <tadeusz.struk@...el.com>
To: David Howells <dhowells@...hat.com>
CC: 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
Hi David,
On 06/16/2015 03:10 PM, David Howells 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?
I thought that -EBADMSG was mainly used for authenticated ciphers in case when verification of auth data fails.
Since this are input params I thought that -EINVAL would be more appropriate.
I can change it to -EBADMSG, no problem.
Herbert, what do you think?
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