[dpdk-dev] [PATCH 1/4] lib/crypto: add support for EC Point Multiplication

[Anoob Joseph]

From: Balakrishna Bhamidipati <bbhamidipati at marvell.com>

Elliptic Curve Point Multiplication xform type and op
parameters are added.

Signed-off-by: Anoob Joseph <anoobj at marvell.com>
Signed-off-by: Balakrishna Bhamidipati <bbhamidipati at marvell.com>
Signed-off-by: Sunila Sahu <ssahu at marvell.com>
---
 doc/guides/cryptodevs/features/default.ini |  1 +
 lib/librte_cryptodev/rte_crypto_asym.h     | 17 +++++++++++++++++
 lib/librte_cryptodev/rte_cryptodev.c       |  1 +
 3 files changed, 19 insertions(+)

diff --git a/doc/guides/cryptodevs/features/default.ini b/doc/guides/cryptodevs/features/default.ini
index 2f6c785..3a54b07 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                   =
+EC Point Multiplication =
diff --git a/lib/librte_cryptodev/rte_crypto_asym.h b/lib/librte_cryptodev/rte_crypto_asym.h
index dd5e6e3..b98ce6c 100644
--- a/lib/librte_cryptodev/rte_crypto_asym.h
+++ b/lib/librte_cryptodev/rte_crypto_asym.h
@@ -85,6 +85,8 @@ enum rte_crypto_asym_xform_type {
 	/**< Elliptic Curve Digital Signature Algorithm
 	 * Perform Signature Generation and Verification.
 	 */
+	RTE_CRYPTO_ASYM_XFORM_EC_POINT_MUL,
+	/**< Elliptic Curve Point Multiplication */
 	RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
 	/**< End of list */
 };
@@ -598,6 +600,20 @@ struct rte_crypto_ecdsa_op_param {
 };
 
 /**
+ * Structure for EC point operation param
+ */
+struct rte_crypto_ec_point_mul_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.
@@ -620,6 +636,7 @@ 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_ec_point_mul_param ecpm;
 	};
 };
 
diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 0d6babb..eea57c6 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_EC_POINT_MUL]	= "ecpm",
 };
 
 /**
-- 
2.7.4