1 files changed, 137 insertions, 0 deletions
diff --git a/libmariadb/plugins/auth/ed25519.c b/libmariadb/plugins/auth/ed25519.c
new file mode 100644
index 00000000..38b896f8
--- /dev/null
+++ b/libmariadb/plugins/auth/ed25519.c
@@ -0,0 +1,137 @@
+/************************************************************************************
+  Copyright (C) 2017-2019 MariaDB Corporation AB
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library 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
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not see <http://www.gnu.org/licenses>
+  or write to the Free Software Foundation, Inc.,
+  51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+ *************************************************************************************/
+#ifndef _WIN32
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_WINCRYPT
+#undef HAVE_OPENSSL
+#undef HAVE_GNUTLS
+#endif
+
+#if defined(HAVE_OPENSSL) || defined(HAVE_WINCRYPT) || defined(HAVE_GNUTLS)
+
+#include <ma_global.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+#include <errmsg.h>
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <ma_common.h>
+
+#ifndef WIN32
+#include <dlfcn.h>
+#endif
+
+#if defined(HAVE_WINCRYPT)
+#include <windows.h>
+#include <wincrypt.h>
+#include <bcrypt.h>
+#elif defined(HAVE_OPENSSL)
+#include <openssl/rsa.h>
+#include <openssl/pem.h>
+#include <openssl/err.h>
+#elif defined(HAVE_GNUTLS)
+#include <gnutls/gnutls.h>
+#endif
+
+#include <ref10/api.h>
+#include <ed25519_common.h>
+#include <ma_crypt.h>
+
+/* function prototypes */
+static int auth_ed25519_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql);
+static int auth_ed25519_deinit(void);
+static int auth_ed25519_init(char *unused1,
+    size_t unused2,
+    int unused3,
+    va_list);
+
+
+#ifndef PLUGIN_DYNAMIC
+struct st_mysql_client_plugin_AUTHENTICATION client_ed25519_client_plugin=
+#else
+struct st_mysql_client_plugin_AUTHENTICATION _mysql_client_plugin_declaration_ =
+#endif
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "client_ed25519",
+  "Sergei Golubchik, Georg Richter",
+  "Ed25519 Authentication Plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  auth_ed25519_init,
+  auth_ed25519_deinit,
+  NULL,
+  auth_ed25519_client
+};
+
+
+static int auth_ed25519_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  unsigned char *packet,
+                signature[CRYPTO_BYTES + NONCE_BYTES];
+  int pkt_len;
+
+  /*
+     Step 1: Server sends nonce
+     Step 2: check that packet length is equal to NONCE_BYTES (=32)
+     Step 3: Sign the nonce with password
+     Steo 4: Send the signature back to server
+  */
+
+  /* read and check nonce */
+  pkt_len= vio->read_packet(vio, &packet);
+  if (pkt_len != NONCE_BYTES)
+    return CR_SERVER_HANDSHAKE_ERR;
+
+  /* Sign nonce: the crypto_sign function is part of ref10 */
+  ma_crypto_sign(signature, packet, NONCE_BYTES, (unsigned char*)mysql->passwd, strlen(mysql->passwd));
+
+  /* send signature to server */
+  if (vio->write_packet(vio, signature, CRYPTO_BYTES))
+    return CR_ERROR;
+
+  return CR_OK;
+}
+/* }}} */
+
+/* {{{ static int auth_ed25519_init */
+static int auth_ed25519_init(char *unused1 __attribute__((unused)),
+    size_t unused2  __attribute__((unused)),
+    int unused3     __attribute__((unused)),
+    va_list unused4 __attribute__((unused)))
+{
+  return 0;
+}
+/* }}} */
+
+/* {{{ auth_ed25519_deinit */
+static int auth_ed25519_deinit(void)
+{
+  return 0;
+}
+/* }}} */
+
+#endif  /* defined(HAVE_OPENSSL) || defined(HAVE_WINCRYPT) || defined(HAVE_GNUTLS)*/
+