cryptodev: support ECDSA

Asymmetric crypto library is extended to add ECDSA. Elliptic curve
xform and ECDSA op params are introduced.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Ayuj Verma <ayverma@marvell.com>
Signed-off-by: Sunila Sahu <ssahu@marvell.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>

diff --git a/doc/guides/cryptodevs/features/default.ini b/doc/guides/cryptodevs/features/default.ini
index 2a3ff48..440233d 100644 (file)
--- a/doc/guides/cryptodevs/features/default.ini
+++ b/doc/guides/cryptodevs/features/default.ini
@@ -104,8 +104,9 @@ CHACHA20-POLY1305 =
 ; Supported Asymmetric algorithms of a default crypto driver.
 ;
 [Asymmetric]
-RSA =
-DSA =
-Modular Exponentiation =
-Modular Inversion =
-Diffie-hellman =
\ No newline at end of file
+RSA                     =
+DSA                     =
+Modular Exponentiation  =
+Modular Inversion       =
+Diffie-hellman          =
+ECDSA                   =

diff --git a/doc/guides/rel_notes/release_20_02.rst b/doc/guides/rel_notes/release_20_02.rst
index 96a0775..af83842 100644 (file)
--- a/doc/guides/rel_notes/release_20_02.rst
+++ b/doc/guides/rel_notes/release_20_02.rst
@@ -64,6 +64,8 @@ New Features
 * **Added algorithms to cryptodev API.**
 
   * Chacha20-Poly1305 AEAD algorithm can now be supported in cryptodev.
+  * ECDSA (Elliptic Curve Digital Signature Algorithm) is added 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 0d34ce8..e17614e 100644 (file)
--- a/lib/librte_cryptodev/rte_crypto_asym.h
+++ b/lib/librte_cryptodev/rte_crypto_asym.h
@@ -27,6 +27,13 @@ extern "C" {
 
 #include "rte_crypto_sym.h"
 
+/**
+ * Buffer to hold crypto params required for asym operations.
+ *
+ * These buffers can be used for both input to PMD and output from PMD. When
+ * used for output from PMD, application has to ensure the buffer is large
+ * enough to hold the target data.
+ */
 typedef struct rte_crypto_param_t {
        uint8_t *data;
        /**< pointer to buffer holding data */
@@ -81,6 +88,10 @@ enum rte_crypto_asym_xform_type {
        /**< Modular Exponentiation
         * Perform Modular Exponentiation b^e mod n
         */
+       RTE_CRYPTO_ASYM_XFORM_ECDSA,
+       /**< Elliptic Curve Digital Signature Algorithm
+        * Perform Signature Generation and Verification.
+        */
        RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
        /**< End of list */
 };
@@ -318,6 +329,40 @@ struct rte_crypto_dsa_xform {
         */
 };
 
+/**
+ * TLS named curves
+ * https://tools.ietf.org/html/rfc8422
+ */
+enum rte_crypto_ec_group {
+       RTE_CRYPTO_EC_GROUP_UNKNOWN  = 0,
+       RTE_CRYPTO_EC_GROUP_SECP192R1 = 19,
+       RTE_CRYPTO_EC_GROUP_SECP224R1 = 21,
+       RTE_CRYPTO_EC_GROUP_SECP256R1 = 23,
+       RTE_CRYPTO_EC_GROUP_SECP384R1 = 24,
+       RTE_CRYPTO_EC_GROUP_SECP521R1 = 25,
+};
+
+/**
+ * Structure for elliptic curve point
+ */
+struct rte_crypto_ec_point {
+       rte_crypto_param x;
+       /**< X coordinate */
+       rte_crypto_param y;
+       /**< Y coordinate */
+};
+
+/**
+ * Asymmetric elliptic curve transform data
+ *
+ * Structure describing all EC based xform params
+ *
+ */
+struct rte_crypto_ec_xform {
+       enum rte_crypto_ec_group curve_id;
+       /**< Pre-defined ec groups */
+};
+
 /**
  * Operations params for modular operations:
  * exponentiation and multiplicative inverse
@@ -372,6 +417,11 @@ struct rte_crypto_asym_xform {
 
                struct rte_crypto_dsa_xform dsa;
                /**< DSA xform parameters */
+
+               struct rte_crypto_ec_xform ec;
+               /**< EC xform parameters, used by elliptic curve based
+                * operations.
+                */
        };
 };
 
@@ -515,6 +565,39 @@ struct rte_crypto_dsa_op_param {
         */
 };
 
+/**
+ * ECDSA operation params
+ */
+struct rte_crypto_ecdsa_op_param {
+       enum rte_crypto_asym_op_type op_type;
+       /**< Signature generation or verification */
+
+       rte_crypto_param pkey;
+       /**< Private key of the signer for signature generation */
+
+       struct rte_crypto_ec_point q;
+       /**< Public key of the signer for verification */
+
+       rte_crypto_param message;
+       /**< Input message digest to be signed or verified */
+
+       rte_crypto_param k;
+       /**< The ECDSA per-message secret number, which is an integer
+        * in the interval (1, n-1)
+        */
+
+       rte_crypto_param r;
+       /**< r component of elliptic curve signature
+        *     output : for signature generation
+        *     input  : for signature verification
+        */
+       rte_crypto_param s;
+       /**< s component of elliptic curve signature
+        *     output : for signature generation
+        *     input  : for signature verification
+        */
+};
+
 /**
  * Asymmetric Cryptographic Operation.
  *
@@ -537,6 +620,7 @@ struct rte_crypto_asym_op {
                struct rte_crypto_mod_op_param modinv;
                struct rte_crypto_dh_op_param dh;
                struct rte_crypto_dsa_op_param dsa;
+               struct rte_crypto_ecdsa_op_param ecdsa;
        };
 };
 

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index 410520f..2ab2c3a 100644 (file)
--- 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_MODINV]  = "modinv",
        [RTE_CRYPTO_ASYM_XFORM_DH]      = "dh",
        [RTE_CRYPTO_ASYM_XFORM_DSA]     = "dsa",
+       [RTE_CRYPTO_ASYM_XFORM_ECDSA]   = "ecdsa",
 };
 
 /**