linux-kernel - Re: [PATCH] module: Do not offer sha224 for built-in module signing

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Message-ID: <ZTIWJYNNu5mQlqky@gondor.apana.org.au>
Date:   Fri, 20 Oct 2023 13:54:45 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Dimitri John Ledkov <dimitri.ledkov@...onical.com>
Cc:     Luis Chamberlain <mcgrof@...nel.org>, linux-crypto@...r.kernel.org,
        linux-modules@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] module: Do not offer sha224 for built-in module signing

On Tue, Oct 10, 2023 at 10:26:33PM +0100, Dimitri John Ledkov wrote:
> sha224 does not provide enough security against collision attacks
> relative to the default keys used for signing (RSA 4k & P-384). Also
> sha224 never became popular, as sha256 got widely adopter ahead of
> sha224 being introduced.
> 
> Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@...onical.com>
> ---
>  kernel/module/Kconfig | 5 -----
>  1 file changed, 5 deletions(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt