1 files changed, 66 insertions, 0 deletions
diff --git a/src/libstrongswan/plugins/curve25519/curve25519_drv.h b/src/libstrongswan/plugins/curve25519/curve25519_drv.h
new file mode 100644
index 000000000..bdf0c4c29
--- /dev/null
+++ b/src/libstrongswan/plugins/curve25519/curve25519_drv.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2015 Martin Willi
+ * Copyright (C) 2015 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+/**
+ * @defgroup curve25519_drv curve25519_drv
+ * @{ @ingroup curve25519_p
+ */
+
+#ifndef CURVE25519_DRV_H_
+#define CURVE25519_DRV_H_
+
+typedef struct curve25519_drv_t curve25519_drv_t;
+
+#include <library.h>
+
+/**
+ * Private key size of Curve25519
+ */
+#define CURVE25519_KEY_SIZE 32
+
+/**
+ * Backend driver abstraction for Curve25519.
+ */
+struct curve25519_drv_t {
+
+	/**
+	 * Set the private key.
+	 *
+	 * @param key		32 byte private key, clamped
+	 * @return			TRUE if key set
+	 */
+	bool (*set_key)(curve25519_drv_t *this, u_char *key);
+
+	/**
+	 * Calculate Curve25519 for the set key.
+	 *
+	 * @param in		input data, 32 bytes
+	 * @param out		output data, 32 bytes
+	 * @return			TRUE if calculated
+	 */
+	bool (*curve25519)(curve25519_drv_t *this, u_char *in, u_char *out);
+
+	/**
+	 * Destroy a curve25519_drv_t.
+	 */
+	void (*destroy)(curve25519_drv_t *this);
+};
+
+/**
+ * Create a curve25519_drv instance.
+ */
+curve25519_drv_t *curve25519_drv_probe();
+
+#endif /** CURVE25519_DRV_H_ @}*/