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From: Shally Verma <shallyv@marvell.com>
To: Arek Kusztal <arkadiuszx.kusztal@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Cc: "akhil.goyal@nxp.com" <akhil.goyal@nxp.com>,
	"fiona.trahe@intel.com" <fiona.trahe@intel.com>
Subject: Re: [dpdk-dev] [EXT] [PATCH v3 09/11] cryptodev: add RSA padding none description
Date: Wed, 17 Jul 2019 10:17:52 +0000
Message-ID: <BN6PR1801MB2052B5926EE3442122432136ADC90@BN6PR1801MB2052.namprd18.prod.outlook.com> (raw)
In-Reply-To: <20190716185304.12592-10-arkadiuszx.kusztal@intel.com>



> -----Original Message-----
> From: Arek Kusztal <arkadiuszx.kusztal@intel.com>
> Sent: Wednesday, July 17, 2019 12:23 AM
> To: dev@dpdk.org
> Cc: akhil.goyal@nxp.com; fiona.trahe@intel.com; Shally Verma
> <shallyv@marvell.com>; Arek Kusztal <arkadiuszx.kusztal@intel.com>
> Subject: [EXT] [PATCH v3 09/11] cryptodev: add RSA padding none
> description
> 
> External Email
> 
> ----------------------------------------------------------------------
> This patch adds RSA padding none description.
> 
> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
> ---
>  lib/librte_cryptodev/rte_crypto_asym.h | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/librte_cryptodev/rte_crypto_asym.h
> b/lib/librte_cryptodev/rte_crypto_asym.h
> index 5026042..7f630f0 100644
> --- a/lib/librte_cryptodev/rte_crypto_asym.h
> +++ b/lib/librte_cryptodev/rte_crypto_asym.h
> @@ -90,7 +90,10 @@ enum rte_crypto_asym_xform_type {
>   */
>  enum rte_crypto_asym_op_type {
>  	RTE_CRYPTO_ASYM_OP_ENCRYPT,
> -	/**< Asymmetric Encrypt operation */
> +	/**< RSA no padding scheme.
> +	 * In this case user is responsible for provision and verification
> +	 * of padding.
> +	 */
>  	RTE_CRYPTO_ASYM_OP_DECRYPT,
>  	/**< Asymmetric Decrypt operation */
>  	RTE_CRYPTO_ASYM_OP_SIGN,
> @@ -409,6 +412,11 @@ struct rte_crypto_rsa_op_param {
>  	 * - padding PSS
>  	 * data provided should contain message digest of the message
>  	 * to be signed
> +	 *
> +	 * When padding field is set to RTE_CRYPTO_RSA_PADDING_NONE
> +	 * and RTE_CRYPTO_ASYM_OP_DECRYPT op_type used returned
> data size
> +	 * will be equal to the size of RSA key in bytes. All leading
> +	 * zeroes will be preserved.
[Shally] its bit unclear here. So, app is supposed to pass buffer with padding removed or padding intact? Are leading 0's padding bytes?
If so, I believe app can use any kind of padding, BT2 or OAEP so it does not have to be necessarily 0. Or
May be I am missing some info here. Could you point me to source which says, for padding none, data will always be padded with leading 0s?

>  	 */
> 
> 
> --
> 2.1.0


  reply index

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-16 18:52 [dpdk-dev] [PATCH v3 00/11] Rework API for RSA algorithm in asymmetric crypto Arek Kusztal
2019-07-16 18:52 ` [dpdk-dev] [PATCH v3 01/11] cryptodev: change RSA API comments about primes Arek Kusztal
2019-07-17  7:32   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-17  8:39     ` Kusztal, ArkadiuszX
2019-07-16 18:52 ` [dpdk-dev] [PATCH v3 02/11] cryptodev: add cipher field to RSA op Arek Kusztal
2019-07-17  7:39   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-17 16:01     ` Kusztal, ArkadiuszX
2019-07-16 18:52 ` [dpdk-dev] [PATCH v3 03/11] crypto/openssl: add cipher field to openssl RSA implementation Arek Kusztal
2019-07-17  7:50   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-16 18:52 ` [dpdk-dev] [PATCH v3 04/11] test: add cipher field to RSA test Arek Kusztal
2019-07-17  7:41   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-17  8:27     ` Kusztal, ArkadiuszX
2019-07-17  9:42     ` Kusztal, ArkadiuszX
2019-07-17 12:54       ` Shally Verma
2019-07-18 12:44         ` Trahe, Fiona
2019-07-19  4:10           ` Shally Verma
2019-07-16 18:52 ` [dpdk-dev] [PATCH v3 05/11] cryptodev: add information about message format when signing with RSA Arek Kusztal
2019-07-17 10:07   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-17 10:26     ` Kusztal, ArkadiuszX
2019-07-16 18:52 ` [dpdk-dev] [PATCH v3 06/11] cryptodev: remove RSA PKCS1 BT0 padding Arek Kusztal
2019-07-17 10:09   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-16 18:53 ` [dpdk-dev] [PATCH v3 07/11] openssl: remove RSA PKCS1_5 " Arek Kusztal
2019-07-17 10:18   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-16 18:53 ` [dpdk-dev] [PATCH v3 08/11] test: remove RSA PKCS1_5 BT0 padding from test cases Arek Kusztal
2019-07-17 10:10   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-16 18:53 ` [dpdk-dev] [PATCH v3 09/11] cryptodev: add RSA padding none description Arek Kusztal
2019-07-17 10:17   ` Shally Verma [this message]
2019-07-17 10:40     ` [dpdk-dev] [EXT] " Kusztal, ArkadiuszX
2019-07-16 18:53 ` [dpdk-dev] [PATCH v3 10/11] test: add pkcs1_5 padding simulation Arek Kusztal
2019-07-17 10:22   ` [dpdk-dev] [EXT] " Shally Verma
2019-07-17 10:28     ` Kusztal, ArkadiuszX
2019-07-16 18:53 ` [dpdk-dev] [PATCH v3 11/11] test: add RSA PKCS1_5 padding case when no padding selected Arek Kusztal

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