[dpdk-dev] [PATCH v3] cryptodev: add chacha20-poly1305 aead algorithm

[Anoob Joseph]

> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Arek Kusztal
> Sent: Monday, January 13, 2020 4:14 PM
> To: dev at dpdk.org
> Cc: akhil.goyal at nxp.com; fiona.trahe at intel.com; Arek Kusztal
> <arkadiuszx.kusztal at intel.com>
> Subject: [dpdk-dev] [PATCH v3] cryptodev: add chacha20-poly1305 aead
> algorithm
> 
> This patch adds Chacha20-Poly1305 AEAD algorithm to Cryptodev.
> 
> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal at intel.com>
> Acked-by: Fiona Trahe <fiona.trahe at intel.com>

Acked-by: Anoob Joseph <anoobj at marvell.com>

> ---
> v2:
> - moved release notes to 20.02
> v3:
> - added algorithm strings
> 
>  doc/guides/cryptodevs/features/default.ini | 13 +++++++------
>  doc/guides/rel_notes/release_20_02.rst     |  4 ++++
>  lib/librte_cryptodev/rte_crypto_sym.h      |  9 +++++++++
>  lib/librte_cryptodev/rte_cryptodev.c       |  1 +
>  4 files changed, 21 insertions(+), 6 deletions(-)
> 
> diff --git a/doc/guides/cryptodevs/features/default.ini
> b/doc/guides/cryptodevs/features/default.ini
> index b7f9a0a..2a3ff48 100644
> --- a/doc/guides/cryptodevs/features/default.ini
> +++ b/doc/guides/cryptodevs/features/default.ini
> @@ -93,12 +93,13 @@ SHA3_512 HMAC   =
>  ; Supported AEAD algorithms of a default crypto driver.
>  ;
>  [AEAD]
> -AES GCM (128) =
> -AES GCM (192) =
> -AES GCM (256) =
> -AES CCM (128) =
> -AES CCM (192) =
> -AES CCM (256) =
> +AES GCM (128)     =
> +AES GCM (192)     =
> +AES GCM (256)     =
> +AES CCM (128)     =
> +AES CCM (192)     =
> +AES CCM (256)     =
> +CHACHA20-POLY1305 =
>  ;
>  ; Supported Asymmetric algorithms of a default crypto driver.
>  ;
> diff --git a/doc/guides/rel_notes/release_20_02.rst
> b/doc/guides/rel_notes/release_20_02.rst
> index 0eaa45a..6b60f47 100644
> --- a/doc/guides/rel_notes/release_20_02.rst
> +++ b/doc/guides/rel_notes/release_20_02.rst
> @@ -56,6 +56,10 @@ New Features
>       Also, make sure to start the actual text at the margin.
>       =========================================================
> 
> +* **Added Chacha20-Poly1305 algorithm to Cryptodev API.**
> +
> +  Chacha20-Poly1305 AEAD algorithm can now be supported in Cryptodev.
> +
> 
>  Removed Items
>  -------------
> diff --git a/lib/librte_cryptodev/rte_crypto_sym.h
> b/lib/librte_cryptodev/rte_crypto_sym.h
> index ffa038d..bc356f6 100644
> --- a/lib/librte_cryptodev/rte_crypto_sym.h
> +++ b/lib/librte_cryptodev/rte_crypto_sym.h
> @@ -348,6 +348,8 @@ enum rte_crypto_aead_algorithm {
>  	/**< AES algorithm in CCM mode. */
>  	RTE_CRYPTO_AEAD_AES_GCM,
>  	/**< AES algorithm in GCM mode. */
> +	RTE_CRYPTO_AEAD_CHACHA20_POLY1305,
> +	/**< Chacha20 cipher with poly1305 authenticator */
>  	RTE_CRYPTO_AEAD_LIST_END
>  };
> 
> @@ -391,6 +393,11 @@ struct rte_crypto_aead_xform {
>  		 * be allocated, even though the length field will
>  		 * have a value less than this.
>  		 *
> +		 * - For Chacha20-Poly1305 it is 96-bit nonce.
> +		 * PMD sets initial counter for Poly1305 key generation
> +		 * part to 0 and for Chacha20 encryption to 1 as per
> +		 * rfc8439 2.8. AEAD construction.
> +		 *
>  		 * For optimum performance, the data pointed to SHOULD
>  		 * be 8-byte aligned.
>  		 */
> @@ -407,6 +414,8 @@ struct rte_crypto_aead_xform {
>  		 *
>  		 * - For CCM mode, this is the length of the nonce,
>  		 * which can be in the range 7 to 13 inclusive.
> +		 *
> +		 * - For Chacha20-Poly1305 this field is always 12.
>  		 */
>  	} iv;	/**< Initialisation vector parameters */
> 
> diff --git a/lib/librte_cryptodev/rte_cryptodev.c
> b/lib/librte_cryptodev/rte_cryptodev.c
> index 89aa2ed..410520f 100644
> --- a/lib/librte_cryptodev/rte_cryptodev.c
> +++ b/lib/librte_cryptodev/rte_cryptodev.c
> @@ -151,6 +151,7 @@ const char *
>  rte_crypto_aead_algorithm_strings[] = {
>  	[RTE_CRYPTO_AEAD_AES_CCM]	= "aes-ccm",
>  	[RTE_CRYPTO_AEAD_AES_GCM]	= "aes-gcm",
> +	[RTE_CRYPTO_AEAD_CHACHA20_POLY1305] = "chacha20-poly1305"
>  };
> 
>  /**
> --
> 2.1.0