1 files changed, 122 insertions, 0 deletions
diff --git a/src/lib/prov/pkcs11/p11_ecdh.h b/src/lib/prov/pkcs11/p11_ecdh.h
new file mode 100644
index 000000000..749a00d52
--- /dev/null
+++ b/src/lib/prov/pkcs11/p11_ecdh.h
@@ -0,0 +1,122 @@
+/*
+* PKCS#11 ECDH
+* (C) 2016 Daniel Neus, Sirrix AG
+* (C) 2016 Philipp Weber, Sirrix AG
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_P11_ECDH_H__
+#define BOTAN_P11_ECDH_H__
+
+#include <botan/build.h>
+#if defined(BOTAN_HAS_ECDH)
+
+#include <botan/p11.h>
+#include <botan/p11_ecc_key.h>
+#include <botan/ecdh.h>
+
+#include <string>
+#include <vector>
+
+namespace Botan {
+namespace PKCS11 {
+class Session;
+
+/// Represents a PKCS#11 ECDH public key
+class BOTAN_DLL PKCS11_ECDH_PublicKey final : public PKCS11_EC_PublicKey
+   {
+   public:
+      /**
+      * Create a PKCS11_ECDH_PublicKey object from an existing PKCS#11 ECDH public key
+      * @param session the session to use
+      * @param handle the handle of the ECDH public key
+      */
+      PKCS11_ECDH_PublicKey(Session& session, ObjectHandle handle)
+         : EC_PublicKey(), PKCS11_EC_PublicKey(session, handle)
+         {}
+
+      /**
+      * Imports a ECDH public key
+      * @param session the session to use
+      * @param props the attributes of the public key
+      */
+      PKCS11_ECDH_PublicKey(Session& session, const EC_PublicKeyImportProperties& props)
+         : EC_PublicKey(), PKCS11_EC_PublicKey(session, props)
+         {}
+
+      inline std::string algo_name() const override
+         {
+         return "ECDH";
+         }
+
+      /// @return the exported ECDH public key
+      ECDH_PublicKey export_key() const;
+   };
+
+/// Represents a PKCS#11 ECDH private key
+class BOTAN_DLL PKCS11_ECDH_PrivateKey final : public virtual PKCS11_EC_PrivateKey, public virtual PK_Key_Agreement_Key
+   {
+   public:
+      /**
+      * Creates a PKCS11_ECDH_PrivateKey object from an existing PKCS#11 ECDH private key
+      * @param session the session to use
+      * @param handle the handle of the ECDH private key
+      */
+      PKCS11_ECDH_PrivateKey(Session& session, ObjectHandle handle)
+         : PKCS11_EC_PrivateKey(session, handle)
+         {}
+
+      /**
+      * Imports an ECDH private key
+      * @param session the session to use
+      * @param props the attributes of the private key
+      */
+      PKCS11_ECDH_PrivateKey(Session& session, const EC_PrivateKeyImportProperties& props)
+         : PKCS11_EC_PrivateKey(session, props)
+         {}
+
+      /**
+      * Generates a PKCS#11 ECDH private key
+      * @param session the session to use
+      * @param ec_params DER-encoding of an ANSI X9.62 Parameters value
+      * @param props the attributes of the private key
+      * @note no persistent public key object will be created
+      */
+      PKCS11_ECDH_PrivateKey(Session& session, const std::vector<byte>& ec_params,
+                             const EC_PrivateKeyGenerationProperties& props)
+         : PKCS11_EC_PrivateKey(session, ec_params, props)
+         {}
+
+      inline std::string algo_name() const override
+         {
+         return "ECDH";
+         }
+
+      inline std::vector<byte> public_value() const override
+         {
+         return unlock(EC2OSP(public_point(), PointGFp::UNCOMPRESSED));
+         }
+
+      /// @return the exported ECDH private key
+      ECDH_PrivateKey export_key() const;
+
+      secure_vector<byte> pkcs8_private_key() const override;
+   };
+
+using PKCS11_ECDH_KeyPair = std::pair<PKCS11_ECDH_PublicKey, PKCS11_ECDH_PrivateKey>;
+
+/**
+* PKCS#11 ECDH key pair generation
+* @param session the session that should be used for the key generation
+* @param pub_props the properties of the public key
+* @param priv_props the properties of the private key
+*/
+BOTAN_DLL PKCS11_ECDH_KeyPair generate_ecdh_keypair(Session& session, const EC_PublicKeyGenerationProperties& pub_props,
+      const EC_PrivateKeyGenerationProperties& priv_props);
+}
+
+}
+
+#endif
+#endif