[dpdk-dev] [PATCH v3 1/6] lib/cryptodev: add asymmetric algos in cryptodev

[Shally Verma <shally.verma@caviumnetworks.com>]

Add rte_crypto_asym.h with supported xfrms
and associated op structures and APIs

API currently supports:
- RSA Encrypt, Decrypt, Sign and Verify
- Modular Exponentiation and Inversion
- DSA Sign and Verify
- Deffie-hellman private key exchange
- Deffie-hellman public key exchange
- Deffie-hellman shared secret compute
- Deffie-hellman public/private key pair generation
using xform chain

Signed-off-by: Shally Verma <shally.verma@caviumnetworks.com>
Signed-off-by: Sunila Sahu <sunila.sahu@caviumnetworks.com>
Signed-off-by: Ashish Gupta <ashish.gupta@caviumnetworks.com>
---
 lib/librte_cryptodev/Makefile          |   2 +-
 lib/librte_cryptodev/meson.build       |   3 +-
 lib/librte_cryptodev/rte_crypto_asym.h | 519 +++++++++++++++++++++++++++++++++
 3 files changed, 522 insertions(+), 2 deletions(-)

diff --git a/lib/librte_cryptodev/Makefile b/lib/librte_cryptodev/Makefile
index bba8dee9f..138e627dc 100644
--- a/lib/librte_cryptodev/Makefile
+++ b/lib/librte_cryptodev/Makefile
@@ -23,7 +23,7 @@ SYMLINK-y-include += rte_crypto.h
 SYMLINK-y-include += rte_crypto_sym.h
 SYMLINK-y-include += rte_cryptodev.h
 SYMLINK-y-include += rte_cryptodev_pmd.h
-
+SYMLINK-y-include += rte_crypto_asym.h
 # versioning export map
 EXPORT_MAP := rte_cryptodev_version.map
 
diff --git a/lib/librte_cryptodev/meson.build b/lib/librte_cryptodev/meson.build
index bd5fed895..295f509ec 100644
--- a/lib/librte_cryptodev/meson.build
+++ b/lib/librte_cryptodev/meson.build
@@ -6,5 +6,6 @@ sources = files('rte_cryptodev.c', 'rte_cryptodev_pmd.c')
 headers = files('rte_cryptodev.h',
 	'rte_cryptodev_pmd.h',
 	'rte_crypto.h',
-	'rte_crypto_sym.h')
+	'rte_crypto_sym.h',
+	'rte_crypto_asym.h')
 deps += ['kvargs', 'mbuf']
diff --git a/lib/librte_cryptodev/rte_crypto_asym.h b/lib/librte_cryptodev/rte_crypto_asym.h
new file mode 100644
index 000000000..d0e2f1d40
--- /dev/null
+++ b/lib/librte_cryptodev/rte_crypto_asym.h
@@ -0,0 +1,519 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Cavium Networks
+ */
+
+#ifndef _RTE_CRYPTO_ASYM_H_
+#define _RTE_CRYPTO_ASYM_H_
+
+/**
+ * @file rte_crypto_asym.h
+ *
+ * RTE Definitions for Asymmetric Cryptography
+ *
+ * Defines asymmetric algorithms and modes, as well as supported
+ * asymmetric crypto operations.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <string.h>
+#include <stdint.h>
+#include <rte_memory.h>
+#include <rte_mempool.h>
+#include <rte_common.h>
+
+typedef struct rte_crypto_param_t {
+	uint8_t *data;
+	/**< pointer to buffer holding data */
+	rte_iova_t iova;
+	/**< IO address of data buffer */
+	size_t length;
+	/**< length of data in bytes */
+} rte_crypto_param;
+
+/** asym xform type name strings */
+extern const char *
+rte_crypto_asym_xform_strings[];
+
+/** asym operations type name strings */
+extern const char *
+rte_crypto_asym_op_strings[];
+
+/**
+ * Asymmetric crypto transformation types.
+ * Each xform type maps to one asymmetric algorithm
+ * performing specific operation
+ *
+ */
+enum rte_crypto_asym_xform_type {
+	RTE_CRYPTO_ASYM_XFORM_UNSPECIFIED = 0,
+	/**< Invalid xform. */
+	RTE_CRYPTO_ASYM_XFORM_NONE,
+	/**< Xform type None.
+	 * May be supported by PMD to support
+	 * passthrough op for debugging purpose.
+	 * if xform_type none , op_type is disregarded.
+	 */
+	RTE_CRYPTO_ASYM_XFORM_RSA,
+	/**< RSA. Performs Encrypt, Decrypt, Sign and Verify.
+	 * Refer to rte_crypto_asym_op_type
+	 */
+	RTE_CRYPTO_ASYM_XFORM_DH,
+	/**< Deffie-Hellman.
+	 * Performs Key Generate and Shared Secret Compute.
+	 * Refer to rte_crypto_asym_op_type
+	 */
+	RTE_CRYPTO_ASYM_XFORM_DSA,
+	/**< Digital Signature Algorithm
+	 * Performs Signature Generation and Verification.
+	 * Refer to rte_crypto_asym_op_type
+	 */
+	RTE_CRYPTO_ASYM_XFORM_MODINV,
+	/**< Modular Inverse
+	 * Perform Modulus inverse b^(-1) mod n
+	 */
+	RTE_CRYPTO_ASYM_XFORM_MODEX,
+	/**< Modular Exponentiation
+	 * Perform Modular Exponentiation b^e mod n
+	 */
+	RTE_CRYPTO_ASYM_XFORM_TYPE_LIST_END
+	/**< End of list */
+};
+
+/**
+ * Asymmetric crypto operation type variants
+ */
+enum rte_crypto_asym_op_type {
+	RTE_CRYPTO_ASYM_OP_ENCRYPT,
+	/**< Asymmetric Encrypt operation */
+	RTE_CRYPTO_ASYM_OP_DECRYPT,
+	/**< Asymmetric Decrypt operation */
+	RTE_CRYPTO_ASYM_OP_SIGN,
+	/**< Signature Generation operation */
+	RTE_CRYPTO_ASYM_OP_VERIFY,
+	/**< Signature Verification operation */
+	RTE_CRYPTO_ASYM_OP_PRIVATE_KEY_GENERATE,
+	/**< DH Private Key generation operation */
+	RTE_CRYPTO_ASYM_OP_PUBLIC_KEY_GENERATE,
+	/**< DH Public Key generation operation */
+	RTE_CRYPTO_ASYM_OP_SHARED_SECRET_COMPUTE,
+	/**< DH Shared Secret compute operation */
+	RTE_CRYPTO_ASYM_OP_LIST_END
+};
+
+/**
+ * Padding types for RSA signature.
+ */
+enum rte_crypto_rsa_padding_type {
+	RTE_CRYPTO_RSA_PADDING_NONE = 0,
+	/**< RSA no padding scheme */
+	RTE_CRYPTO_RSA_PKCS1_V1_5_BT0,
+	/**< RSA PKCS#1 V1.5 Block Type 0 padding scheme
+	 * as descibed in rfc2313
+	 */
+	RTE_CRYPTO_RSA_PKCS1_V1_5_BT1,
+	/**< RSA PKCS#1 V1.5 Block Type 01 padding scheme
+	 * as descibed in rfc2313
+	 */
+	RTE_CRYPTO_RSA_PKCS1_V1_5_BT2,
+	/**< RSA PKCS#1 V1.5 Block Type 02 padding scheme
+	 * as descibed in rfc2313
+	 */
+	RTE_CRYPTO_RSA_PADDING_OAEP,
+	/**< RSA PKCS#1 OAEP padding scheme */
+	RTE_CRYPTO_RSA_PADDING_PSS,
+	/**< RSA PKCS#1 PSS padding scheme */
+	RTE_CRYPTO_RSA_PADDING_TYPE_LIST_END
+};
+
+/**
+ * RSA private key type enumeration
+ *
+ * enumerates private key format required to perform RSA crypto
+ * transform.
+ *
+ */
+enum rte_crypto_rsa_priv_key_type {
+	RTE_RSA_KEY_TYPE_EXP,
+	/**< RSA private key is an exponent */
+	RTE_RSA_KET_TYPE_QT,
+	/**< RSA private key is in quintuple format
+	 * See rte_crypto_rsa_priv_key_qt
+	 */
+};
+
+/**
+ * Structure describing RSA private key in quintuple format.
+ * See PKCS V1.5 RSA Cryptography Standard.
+ */
+struct rte_crypto_rsa_priv_key_qt {
+	rte_crypto_param p;
+	/**< p - Private key component P
+	 * Private key component of RSA parameter  required for CRT method
+	 * of private key operations in Octet-string network byte order
+	 * format.
+	 */
+
+	rte_crypto_param q;
+	/**< q - Private key component Q
+	 * Private key component of RSA parameter  required for CRT method
+	 * of private key operations in Octet-string network byte order
+	 * format.
+	 */
+
+	rte_crypto_param dP;
+	/**< dP - Private CRT component
+	 * Private CRT component of RSA parameter  required for CRT method
+	 * RSA private key operations in Octet-string network byte order
+	 * format.
+	 * dP = d mod ( p - 1 )
+	 */
+
+	rte_crypto_param dQ;
+	/**< dQ - Private CRT component
+	 * Private CRT component of RSA parameter  required for CRT method
+	 * RSA private key operations in Octet-string network byte order
+	 * format.
+	 * dQ = d mod ( q - 1 )
+	 */
+
+	rte_crypto_param qInv;
+	/**< qInv - Private CRT component
+	 * Private CRT component of RSA parameter  required for CRT method
+	 * RSA private key operations in Octet-string network byte order
+	 * format.
+	 * qInv = inv q mod p
+	 */
+};
+
+/**
+ * Asymmetric RSA transform data
+ *
+ * Structure describing RSA xform params
+ *
+ */
+struct rte_crypto_rsa_xform {
+	rte_crypto_param n;
+	/**< n - Prime modulus
+	 * Prime modulus data of RSA operation in Octet-string network
+	 * byte order format.
+	 */
+
+	rte_crypto_param e;
+	/**< e - Public key exponent
+	 * Public key exponent used for RSA public key operations in Octet-
+	 * string network byte order format.
+	 */
+
+	enum rte_crypto_rsa_priv_key_type key_type;
+
+	union {
+			rte_crypto_param d;
+			/**< d - Private key exponent
+			 * Private key exponent used for RSA
+			 * private key operations in
+			 * Octet-string  network byte order format.
+			 */
+
+			struct rte_crypto_rsa_priv_key_qt qt;
+			/**< qt - Private key in quintuple format */
+	};
+};
+
+/**
+ * Asymmetric Modular exponentiation transform data
+ *
+ * Structure describing modular exponentation xform param
+ *
+ */
+struct rte_crypto_modex_xform {
+	rte_crypto_param modulus;
+	/**< modulus
+	 * Prime modulus of the modexp transform operation in octet-string
+	 * network byte order format.
+	 */
+
+	rte_crypto_param exponent;
+	/**< exponent
+	 * Private exponent of the modexp transform operation in
+	 * octet-string network byte order format.
+	 */
+};
+
+/**
+ * Asymmetric modular inverse transform operation
+ *
+ * Structure describing modulus inverse xform params
+ *
+ */
+struct rte_crypto_modinv_xform {
+	rte_crypto_param modulus;
+	/**<
+	 * Pointer to the prime modulus data for modular
+	 * inverse operation in octet-string network byte
+	 * order format.
+	 */
+};
+
+/**
+ * Asymmetric DH transform data
+ *
+ * Structure describing deffie-hellman xform params
+ *
+ */
+struct rte_crypto_dh_xform {
+	enum rte_crypto_asym_op_type type;
+	/**< Setup xform for key generate or shared secret compute */
+
+	rte_crypto_param p;
+	/**< p : Prime modulus data
+	 * DH prime modulous data in octet-string network byte order format.
+	 *
+	 */
+
+	rte_crypto_param g;
+	/**< g : Generator
+	 * DH group generator data in octet-string network byte order
+	 * format.
+	 *
+	 */
+};
+
+/**
+ * Asymmetric Digital Signature transform operation
+ *
+ * Structure describing DSA xform params
+ *
+ */
+struct rte_crypto_dsa_xform {
+	rte_crypto_param p;
+	/**< p - Prime modulus
+	 * Prime modulus data for DSA operation in Octet-string network byte
+	 * order format.
+	 */
+	rte_crypto_param q;
+	/**< q : Order of the subgroup.
+	 * Order of the subgroup data in Octet-string network byte order
+	 * format.
+	 * (p-1) % q = 0
+	 */
+	rte_crypto_param g;
+	/**< g: Generator of the subgroup
+	 * Generator  data in Octet-string network byte order format.
+	 */
+	rte_crypto_param x;
+	/**< x: Private key of the signer in octet-string network
+	 * byte order format.
+	 * Used when app has pre-defined private key.
+	 * Valid only when xform chain is DSA ONLY.
+	 * if xform chain is DH private key generate + DSA, then DSA sign
+	 * compute will use internally generated key.
+	 */
+};
+
+/**
+ * Operations params for modular operations:
+ * exponentiation and invert
+ *
+ */
+struct rte_crypto_mod_op_param {
+	rte_crypto_param base;
+	/**<
+	 * Pointer to base of modular exponentiation/inversion data in
+	 * Octet-string network byte order format.
+	 */
+};
+
+/**
+ * Asymmetric crypto transform data
+ *
+ * Structure describing asym xforms.
+ */
+struct rte_crypto_asym_xform {
+	struct rte_crypto_asym_xform *next;
+	/**< Pointer to next xform to set up xform chain.*/
+	enum rte_crypto_asym_xform_type xform_type;
+	/**< Asymmetric crypto transform */
+
+	__extension__
+	union {
+		struct rte_crypto_rsa_xform rsa;
+		/**< RSA xform parameters */
+
+		struct rte_crypto_modex_xform modex;
+		/**< Modular Exponentiation xform parameters */
+
+		struct rte_crypto_modinv_xform modinv;
+		/**< Modulus Inverse xform parameters */
+
+		struct rte_crypto_dh_xform dh;
+		/**< DH xform parameters */
+
+		struct rte_crypto_dsa_xform dsa;
+		/**< DSA xform parameters */
+	};
+};
+
+struct rte_cryptodev_asym_session;
+
+/**
+ * RSA operation params
+ *
+ */
+struct rte_crypto_rsa_op_param {
+	enum rte_crypto_asym_op_type op_type;
+	/**< Type of RSA operation for transform */;
+
+	rte_crypto_param message;
+	/**<
+	 * Pointer to data
+	 * - to be encrypted for RSA public encrypt.
+	 * - to be decrypted for RSA private decrypt.
+	 * - to be signed for RSA sign generation.
+	 * - to be authenticated for RSA sign verification.
+	 */
+
+	rte_crypto_param sign;
+	/**<
+	 * Pointer to RSA signature data. If operation is RSA
+	 * sign @ref RTE_CRYPTO_RSA_OP_SIGN, buffer will be
+	 * over-written with generated signature.
+	 *
+	 * Length of the signature data will be equal to the
+	 * RSA prime modulus length.
+	 */
+
+	enum rte_crypto_rsa_padding_type pad;
+	/**< RSA padding scheme to be used for transform */
+
+	enum rte_crypto_auth_algorithm md;
+	/**< Hash algorithm to be used for data hash if padding
+	 * scheme is either OAEP or PSS. Valid hash algorithms
+	 * are:
+	 * MD5, SHA1, SHA224, SHA256, SHA384, SHA512
+	 */
+
+	enum rte_crypto_auth_algorithm mgf1md;
+	/**<
+	 * Hash algorithm to be used for mask generation if
+	 * padding scheme is either OAEP or PSS. If padding
+	 * scheme is unspecified data hash algorithm is used
+	 * for mask generation. Valid hash algorithms are:
+	 * MD5, SHA1, SHA224, SHA256, SHA384, SHA512
+	 */
+};
+
+/**
+ * Deffie-Hellman Operations params.
+ * @note:
+ */
+struct rte_crypto_dh_op_param {
+	rte_crypto_param pub_key;
+	/**<
+	 * Output generated public key when xform type is
+	 * DH PUB_KEY_GENERATION.
+	 * Input peer public key when xform type is DH
+	 * SHARED_SECRET_COMPUTATION
+	 * pub_key is in octet-string network byte order format.
+	 *
+	 */
+
+	rte_crypto_param priv_key;
+	/**<
+	 * Output generated private key if xform type is
+	 * DH PRIVATE_KEY_GENERATION
+	 * Input when xform type is DH SHARED_SECRET_COMPUTATION.
+	 * priv_key is in octet-string network byte order format.
+	 *
+	 */
+
+	rte_crypto_param shared_secret;
+	/**<
+	 * Output with calculated shared secret
+	 * when dh xform set up with op type = SHARED_SECRET_COMPUTATION.
+	 * shared_secret is an octet-string network byte order format.
+	 *
+	 */
+};
+
+/**
+ * DSA Operations params
+ *
+ */
+struct rte_crypto_dsa_op_param {
+	enum rte_crypto_asym_op_type op_type;
+	/**< Signature Generation or Verification */
+	rte_crypto_param message;
+	/**< input message to be signed or verified */
+	rte_crypto_param r;
+	/**< dsa sign component 'r' value
+	 *
+	 * output if op_type = sign generate,
+	 * input if op_type = sign verify
+	 */
+	rte_crypto_param s;
+	/**< dsa sign component 's' value
+	 *
+	 * output if op_type = sign generate,
+	 * input if op_type = sign verify
+	 */
+	rte_crypto_param y;
+	/**< y : Public key of the signer.
+	 * Public key data of the signer in Octet-string network byte order
+	 * format.
+	 * y = g^x mod p
+	 */
+};
+
+/**
+ * Asymmetric Cryptographic Operation.
+ *
+ * Structure describing asymmetric crypto operation params.
+ *
+ */
+struct rte_crypto_asym_op {
+	struct rte_cryptodev_asym_session *session;
+	/**< Handle for the initialised session context */
+
+	__extension__
+	union {
+		struct rte_crypto_rsa_op_param rsa;
+		struct rte_crypto_mod_op_param modex;
+		struct rte_crypto_mod_op_param modinv;
+		struct rte_crypto_dh_op_param dh;
+		struct rte_crypto_dsa_op_param dsa;
+	};
+} __rte_cache_aligned;
+
+/**
+ * Reset the fields of an asymmetric operation to their default values.
+ *
+ * @param	op	The crypto operation to be reset.
+ */
+static inline void
+__rte_crypto_asym_op_reset(struct rte_crypto_asym_op *op)
+{
+	memset(op, 0, sizeof(*op));
+}
+
+/**
+ * Attach a session to an asymmetric crypto operation
+ *
+ * @param	asym_op	crypto operation
+ * @param	sess	cryptodev session
+ */
+static inline int
+__rte_crypto_op_attach_asym_session(struct rte_crypto_asym_op *asym_op,
+		struct rte_cryptodev_asym_session *sess)
+{
+	asym_op->session = sess;
+	return 0;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_CRYPTO_ASYM_H_ */
-- 
2.14.3