--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ed25519.h	Thu Oct 15 19:55:15 2020 +0800
@@ -0,0 +1,54 @@
+/*
+ * Dropbear - a SSH2 server
+ * 
+ * Copyright (c) 2002,2003 Matt Johnston
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE. */
+
+#ifndef DROPBEAR_ED25519_H_
+#define DROPBEAR_ED25519_H_
+
+#include "includes.h"
+#include "buffer.h"
+
+#if DROPBEAR_ED25519 
+
+#define CURVE25519_LEN 32
+
+typedef struct dropbear_ED25519_Key {
+
+	unsigned char priv[CURVE25519_LEN];
+	unsigned char pub[CURVE25519_LEN];
+
+} dropbear_ed25519_key;
+
+void buf_put_ed25519_sign(buffer* buf, const dropbear_ed25519_key *key, const buffer *data_buf);
+#if DROPBEAR_SIGNKEY_VERIFY
+int buf_ed25519_verify(buffer * buf, const dropbear_ed25519_key *key, const buffer *data_buf);
+#endif
+int buf_get_ed25519_pub_key(buffer* buf, dropbear_ed25519_key *key);
+int buf_get_ed25519_priv_key(buffer* buf, dropbear_ed25519_key *key);
+void buf_put_ed25519_pub_key(buffer* buf, const dropbear_ed25519_key *key);
+void buf_put_ed25519_priv_key(buffer* buf, const dropbear_ed25519_key *key);
+void ed25519_key_free(dropbear_ed25519_key *key);
+
+#endif /* DROPBEAR_ED25519 */
+
+#endif /* DROPBEAR_ED25519_H_ */