[PATCH v1 1/1] cryptodev: support EDDSA

[Sachin Yaligar]

Asymmetric crypto library is extended to add EDDSA. Edwards curve
operation params are introduced.

Signed-off-by: Sachin Yaligar <syaligar at marvell.com>
Change-Id: I939d7646f95723113fa9f3bdbc01c0aeb4620e74
---
 .mailmap                                   |  1 +
 doc/guides/cryptodevs/features/default.ini |  1 +
 doc/guides/prog_guide/cryptodev_lib.rst    |  2 +-
 lib/cryptodev/rte_crypto_asym.h            | 39 +++++++++++++++++++++-
 4 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/.mailmap b/.mailmap
index cac02a6f48..6d92b56560 100644
--- a/.mailmap
+++ b/.mailmap
@@ -1169,6 +1169,7 @@ Rushil Gupta <rushilg at google.com>
 Ryan E Hall <ryan.e.hall at intel.com>
 Sabyasachi Sengupta <sabyasg at hpe.com>
 Sachin Saxena <sachin.saxena at nxp.com> <sachin.saxena at oss.nxp.com>
+Sachin Yaligar <syaligar at marvell.com>
 Sagar Abhang <sabhang at brocade.com>
 Sagi Grimberg <sagi at grimberg.me>
 Saikrishna Edupuganti <saikrishna.edupuganti at intel.com>
diff --git a/doc/guides/cryptodevs/features/default.ini b/doc/guides/cryptodevs/features/default.ini
index 523da0cfa8..247a56be6e 100644
--- a/doc/guides/cryptodevs/features/default.ini
+++ b/doc/guides/cryptodevs/features/default.ini
@@ -125,6 +125,7 @@ Diffie-hellman          =
 ECDSA                   =
 ECPM                    =
 ECDH                    =
+EDDSA			=
 
 ;
 ; Supported Operating systems of a default crypto driver.
diff --git a/doc/guides/prog_guide/cryptodev_lib.rst b/doc/guides/prog_guide/cryptodev_lib.rst
index 2b513bbf82..358dbbc768 100644
--- a/doc/guides/prog_guide/cryptodev_lib.rst
+++ b/doc/guides/prog_guide/cryptodev_lib.rst
@@ -927,7 +927,7 @@ Asymmetric Cryptography
 The cryptodev library currently provides support for the following asymmetric
 Crypto operations; RSA, Modular exponentiation and inversion, Diffie-Hellman and
 Elliptic Curve Diffie-Hellman public and/or private key generation and shared
-secret compute, DSA Signature generation and verification.
+secret compute, DSA and Edward's curve DSA Signature generation and verification.
 
 Session and Session Management
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/lib/cryptodev/rte_crypto_asym.h b/lib/cryptodev/rte_crypto_asym.h
index 989f38323f..fc7172b070 100644
--- a/lib/cryptodev/rte_crypto_asym.h
+++ b/lib/cryptodev/rte_crypto_asym.h
@@ -69,7 +69,9 @@ enum rte_crypto_curve_id {
 	RTE_CRYPTO_EC_GROUP_SECP224R1 = 21,
 	RTE_CRYPTO_EC_GROUP_SECP256R1 = 23,
 	RTE_CRYPTO_EC_GROUP_SECP384R1 = 24,
-	RTE_CRYPTO_EC_GROUP_SECP521R1 = 25
+	RTE_CRYPTO_EC_GROUP_SECP521R1 = 25,
+	RTE_CRYPTO_EC_GROUP_ED25519 = 29,
+	RTE_CRYPTO_EC_GROUP_ED448 = 30
 };
 
 /**
@@ -113,6 +115,10 @@ enum rte_crypto_asym_xform_type {
 	/**< Elliptic Curve Digital Signature Algorithm
 	 * Perform Signature Generation and Verification.
 	 */
+	RTE_CRYPTO_ASYM_XFORM_EDDSA,
+	/**< Edwards Curve Digital Signature Algorithm
+	 * Perform Signature Generation and Verification.
+	 */
 	RTE_CRYPTO_ASYM_XFORM_ECDH,
 	/**< Elliptic Curve Diffie Hellman */
 	RTE_CRYPTO_ASYM_XFORM_ECPM,
@@ -591,6 +597,36 @@ struct rte_crypto_ecdsa_op_param {
 	 */
 };
 
+/**
+ * EDDSA operation params
+ */
+struct rte_crypto_eddsa_op_param {
+	enum rte_crypto_asym_op_type op_type;
+	/**< Signature generation or verification */
+
+	rte_crypto_uint pkey;
+	/**< Private key of the signer for signature generation */
+
+	struct rte_crypto_ec_point q;
+	/**< Public key of the signer derived from private key
+	 *	h = hash(pkey), q = (h[0-31] * B)
+	 */
+
+	rte_crypto_param message;
+	/**< Input message digest to be signed or verified */
+
+	rte_crypto_uint r;
+	/**< r component of edward curve signature
+	 *     output : for signature generation
+	 *     input  : for signature verification
+	 */
+	rte_crypto_uint s;
+	/**< s component of edward curve signature
+	 *     output : for signature generation
+	 *     input  : for signature verification
+	 */
+};
+
 /**
  * Structure for EC point multiplication operation param
  */
@@ -664,6 +700,7 @@ struct rte_crypto_asym_op {
 		struct rte_crypto_ecdh_op_param ecdh;
 		struct rte_crypto_dsa_op_param dsa;
 		struct rte_crypto_ecdsa_op_param ecdsa;
+		struct rte_crypto_eddsa_op_param eddsa;
 		struct rte_crypto_ecpm_op_param ecpm;
 	};
 	uint16_t flags;
-- 
2.40.0