linux-kernel - Re: [PATCH v2] crypto: rsa-pkcs1pad: export rsa1_asn

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Message-ID: <ZkWIFjGzB3ngUgsP@gondor.apana.org.au>
Date: Thu, 16 May 2024 12:14:14 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Jarkko Sakkinen <jarkko@...nel.org>
Cc: linux-integrity@...r.kernel.org, James Prestwood <prestwoj@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	"open list:CRYPTO API" <linux-crypto@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] crypto: rsa-pkcs1pad: export rsa1_asn_lookup()

On Wed, May 15, 2024 at 06:02:10PM +0300, Jarkko Sakkinen wrote:
> ASN.1 template is required for TPM2 asymmetric keys, as it needs to be
> piggy-packed with the input data before applying TPM2_RSA_Decrypt. This
> patch prepares crypto subsystem for the addition of those keys.
> 
> Later rsa_lookup_asn1() can be enabled in crypto/asymmetric_keys/Kconfig
> by:
> 
> 	depends on CRYPTO_RSA >= <TPM2 asymmetric keys>
> 
> Cc: James Prestwood <prestwoj@...il.com>
> Signed-off-by: Jarkko Sakkinen <jarkko@...nel.org>
> ---
> v2:
> - Fix typo in the kdoc.
> - Export also the template struct.
> ---
>  crypto/rsa-pkcs1pad.c         | 16 ++++++++++------
>  include/crypto/rsa-pkcs1pad.h | 20 ++++++++++++++++++++
>  2 files changed, 30 insertions(+), 6 deletions(-)
>  create mode 100644 include/crypto/rsa-pkcs1pad.h

Please provide a link to the patch that will make use of this.

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