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authorAntenore Gatta <antenore@simbiosi.org>2018-05-03 15:38:44 +0300
committerAntenore Gatta <antenore@simbiosi.org>2018-05-03 15:38:44 +0300
commitd77997ca5c06c1dd971cf85383e81bd6584be746 (patch)
tree78a08a34126a30a25655ca748b9e2197e918102b /src/remmina_crypt.c
parentbcf9990358f0ac9423734421be45c38fdccdf1f0 (diff)
Renamed remmina in src and moved source files
Diffstat (limited to 'src/remmina_crypt.c')
-rw-r--r--src/remmina_crypt.c181
1 files changed, 181 insertions, 0 deletions
diff --git a/src/remmina_crypt.c b/src/remmina_crypt.c
new file mode 100644
index 000000000..97f8874cb
--- /dev/null
+++ b/src/remmina_crypt.c
@@ -0,0 +1,181 @@
+/*
+ * Remmina - The GTK+ Remote Desktop Client
+ * Copyright (C) 2009 - Vic Lee
+ * Copyright (C) 2014-2015 Antenore Gatta, Fabio Castelli, Giovanni Panozzo
+ * Copyright (C) 2016-2018 Antenore Gatta, Giovanni Panozzo
+ *
+ * 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.
+ *
+ * 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 02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL. * If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so. * If you
+ * do not wish to do so, delete this exception statement from your
+ * version. * If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ *
+ */
+
+#include "config.h"
+#include <glib.h>
+#ifdef HAVE_LIBGCRYPT
+#include <gcrypt.h>
+#endif
+#include "remmina_pref.h"
+#include "remmina_crypt.h"
+#include "remmina/remmina_trace_calls.h"
+
+#ifdef HAVE_LIBGCRYPT
+
+static gboolean remmina_crypt_init(gcry_cipher_hd_t *phd)
+{
+ TRACE_CALL(__func__);
+ guchar* secret;
+ gcry_error_t err;
+ gsize secret_len;
+
+ secret = g_base64_decode(remmina_pref.secret, &secret_len);
+
+ if (secret_len < 32) {
+ g_print("secret corrupted\n");
+ g_free(secret);
+ return FALSE;
+ }
+
+ err = gcry_cipher_open(phd, GCRY_CIPHER_3DES, GCRY_CIPHER_MODE_CBC, 0);
+
+ if (err) {
+ g_print("gcry_cipher_open failure: %s\n", gcry_strerror(err));
+ g_free(secret);
+ return FALSE;
+ }
+
+ err = gcry_cipher_setkey((*phd), secret, 24);
+
+ if (err) {
+ g_print("gcry_cipher_setkey failure: %s\n", gcry_strerror(err));
+ g_free(secret);
+ gcry_cipher_close((*phd));
+ return FALSE;
+ }
+
+ err = gcry_cipher_setiv((*phd), secret + 24, 8);
+
+ if (err) {
+ g_print("gcry_cipher_setiv failure: %s\n", gcry_strerror(err));
+ g_free(secret);
+ gcry_cipher_close((*phd));
+ return FALSE;
+ }
+
+ g_free(secret);
+
+ return TRUE;
+}
+
+gchar* remmina_crypt_encrypt(const gchar *str)
+{
+ TRACE_CALL(__func__);
+ guchar* buf;
+ gint buf_len;
+ gchar* result;
+ gcry_error_t err;
+ gcry_cipher_hd_t hd;
+
+ if (!str || str[0] == '\0')
+ return NULL;
+
+ if (!remmina_crypt_init(&hd))
+ return NULL;
+
+ buf_len = strlen(str);
+ /* Pack to 64bit block size, and make sure it's always 0-terminated */
+ buf_len += 8 - buf_len % 8;
+ buf = (guchar*)g_malloc(buf_len);
+ memset(buf, 0, buf_len);
+ memcpy(buf, str, strlen(str));
+
+ err = gcry_cipher_encrypt(hd, buf, buf_len, NULL, 0);
+
+ if (err) {
+ g_print("gcry_cipher_encrypt failure: %s\n", gcry_strerror(err));
+ g_free(buf);
+ gcry_cipher_close(hd);
+ return NULL;
+ }
+
+ result = g_base64_encode(buf, buf_len);
+
+ g_free(buf);
+ gcry_cipher_close(hd);
+
+ return result;
+}
+
+gchar* remmina_crypt_decrypt(const gchar *str)
+{
+ TRACE_CALL(__func__);
+ guchar* buf;
+ gsize buf_len;
+ gcry_error_t err;
+ gcry_cipher_hd_t hd;
+
+ if (!str || str[0] == '\0')
+ return NULL;
+
+ if (!remmina_crypt_init(&hd))
+ return NULL;
+
+ buf = g_base64_decode(str, &buf_len);
+
+ err = gcry_cipher_decrypt(hd, buf, buf_len, NULL, 0);
+
+ if (err) {
+ g_print("gcry_cipher_decrypt failure: %s\n", gcry_strerror(err));
+ g_free(buf);
+ gcry_cipher_close(hd);
+ return NULL;
+ }
+
+ gcry_cipher_close(hd);
+
+ /* Just in case */
+ buf[buf_len - 1] = '\0';
+
+ return (gchar*)buf;
+}
+
+#else
+
+gchar* remmina_crypt_encrypt(const gchar *str)
+{
+ TRACE_CALL(__func__);
+ return NULL;
+}
+
+gchar* remmina_crypt_decrypt(const gchar *str)
+{
+ TRACE_CALL(__func__);
+ return NULL;
+}
+
+#endif
+