1 files changed, 68 insertions, 0 deletions
diff --git a/plugin/auth_ed25519/client_ed25519.c b/plugin/auth_ed25519/client_ed25519.c
new file mode 100644
index 00000000..5222da8c
--- /dev/null
+++ b/plugin/auth_ed25519/client_ed25519.c
@@ -0,0 +1,68 @@
+/*
+   Copyright (c) 2017, MariaDB
+
+   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; version 2 of the License.
+
+   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.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/************************** CLIENT *************************************/
+
+#include <stdlib.h>
+#include "common.h"
+#include <mysql/client_plugin.h>
+#include <errmsg.h>
+
+#if !defined(__attribute__) && !defined(__GNUC__)
+#define __attribute__(A)
+#endif
+
+static int do_auth(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  unsigned char reply[CRYPTO_BYTES + NONCE_BYTES], *pkt;
+  int pkt_len;
+
+  /* read the nonce */
+  if ((pkt_len= vio->read_packet(vio, &pkt)) != NONCE_BYTES)
+    return CR_SERVER_HANDSHAKE_ERR;
+
+  /* sign the nonce */
+  crypto_sign(reply, pkt, NONCE_BYTES,
+              (unsigned char*)mysql->passwd, strlen(mysql->passwd));
+
+  /* send the signature */
+  if (vio->write_packet(vio, reply, CRYPTO_BYTES))
+    return CR_ERROR;
+
+  return CR_OK;
+}
+
+static int init_client(char *unused1   __attribute__((unused)),
+                       size_t unused2  __attribute__((unused)),
+                       int unused3     __attribute__((unused)),
+                       va_list unused4 __attribute__((unused)))
+{
+  return 0;
+}
+
+mysql_declare_client_plugin(AUTHENTICATION)
+  "client_ed25519",
+  "Sergei Golubchik",
+  "Elliptic curve ED25519 based authentication",
+  {0,1,0},
+  "GPL",
+  NULL,
+  init_client,
+  NULL,
+  NULL,
+  do_auth,
+mysql_end_client_plugin;
+