[dpdk-dev] [PATCH v2 1/4] cryptodev: support ECPM

[Anoob Joseph <anoobj@marvell.com>]

From: Balakrishna Bhamidipati <bbhamidipati@marvell.com>

Asymmetric crypto library is extended to add ECPM (Elliptic Curve Point
Multiplication). The required xform type and op parameters are
introduced.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Balakrishna Bhamidipati <bbhamidipati@marvell.com>
Signed-off-by: Sunila Sahu <ssahu@marvell.com>
---
 doc/guides/cryptodevs/features/default.ini |  1 +
 doc/guides/rel_notes/release_20_02.rst     |  5 +++++
 lib/librte_cryptodev/rte_crypto_asym.h     | 17 +++++++++++++++++
 lib/librte_cryptodev/rte_cryptodev.c       |  1 +
 4 files changed, 24 insertions(+)

diff --git a/doc/guides/cryptodevs/features/default.ini b/doc/guides/cryptodevs/features/default.ini
index 2f6c785..f639a88 100644
--- a/doc/guides/cryptodevs/features/default.ini
+++ b/doc/guides/cryptodevs/features/default.ini
@@ -109,3 +109,4 @@ Modular Exponentiation  =
 Modular Inversion       =
 Diffie-hellman          =
 ECDSA                   =
+ECPM                    =
diff --git a/doc/guides/rel_notes/release_20_02.rst b/doc/guides/rel_notes/release_20_02.rst
index 2e97c60..4baec2b 100644
--- a/doc/guides/rel_notes/release_20_02.rst
+++ b/doc/guides/rel_notes/release_20_02.rst
@@ -61,6 +61,11 @@ New Features
   Added ECDSA(Elliptic Curve Digital Signature Algorithm) support to asymmetric
   crypto library specifications.
 
+* **Added support for ECPM.**
+
+  Added ECPM(Elliptic Curve Point Multiplication) support to asymmetric
+  crypto library specifications.
+
 Removed Items
 -------------
 
diff --git a/lib/librte_cryptodev/rte_crypto_asym.h b/lib/librte_cryptodev/rte_crypto_asym.h
index e17614e..9c866f5 100644
--- a/lib/librte_cryptodev/rte_crypto_asym.h
+++ b/lib/librte_cryptodev/rte_crypto_asym.h
@@ -92,6 +92,8 @@ enum rte_crypto_asym_xform_type {
 	/**< Elliptic Curve Digital Signature Algorithm
 	 * Perform Signature Generation and Verification.
 	 */
+	RTE_CRYPTO_ASYM_XFORM_ECPM,
+	/**< Elliptic Curve Point Multiplication */
 	RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
 	/**< End of list */
 };
@@ -599,6 +601,20 @@ struct rte_crypto_ecdsa_op_param {
 };
 
 /**
+ * Structure for EC point multiplication operation param
+ */
+struct rte_crypto_ecpm_op_param {
+	struct rte_crypto_ec_point p;
+	/**< x and y coordinates of input point */
+
+	struct rte_crypto_ec_point r;
+	/**< x and y coordinates of resultant point */
+
+	rte_crypto_param scalar;
+	/**< Scalar to multiply the input point */
+};
+
+/**
  * Asymmetric Cryptographic Operation.
  *
  * Structure describing asymmetric crypto operation params.
@@ -621,6 +637,7 @@ struct rte_crypto_asym_op {
 		struct rte_crypto_dh_op_param dh;
 		struct rte_crypto_dsa_op_param dsa;
 		struct rte_crypto_ecdsa_op_param ecdsa;
+		struct rte_crypto_ecpm_op_param ecpm;
 	};
 };
 
diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 0d6babb..ab4b231 100644
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -174,6 +174,7 @@ const char *rte_crypto_asym_xform_strings[] = {
 	[RTE_CRYPTO_ASYM_XFORM_DH]	= "dh",
 	[RTE_CRYPTO_ASYM_XFORM_DSA]	= "dsa",
 	[RTE_CRYPTO_ASYM_XFORM_ECDSA]	= "ecdsa",
+	[RTE_CRYPTO_ASYM_XFORM_ECPM]	= "ecpm",
 };
 
 /**
-- 
2.7.4