diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 6ddd5b9b..7e5c119a 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -12,6 +12,7 @@ set(core_sources
         net_crypto.c
         friend_requests.c
         LAN_discovery.c
-        Messenger.c)
+        Messenger.c
+        misc_tools.c)
 
 add_library(core ${core_sources})
diff --git a/core/misc_tools.c b/core/misc_tools.c
new file mode 100644
index 00000000..34d64bf4
--- /dev/null
+++ b/core/misc_tools.c
@@ -0,0 +1,43 @@
+/* misc_tools.c
+ * 
+ * Miscellaneous functions and data structures for doing random things.
+ *
+ *  Copyright (C) 2013 Tox project All Rights Reserved.
+ *
+ *  This file is part of Tox.
+ *
+ *  Tox 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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Tox 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 Tox.  If not, see <http://www.gnu.org/licenses/>.
+ *  
+ */
+ 
+#include "misc_tools.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h> //for sscanf
+
+//TODO: rewrite
+unsigned char * hex_string_to_bin(char hex_string[])
+{
+    size_t len = strlen(hex_string);
+    unsigned char *val = malloc(len);
+    char *pos = hex_string;
+    int i=0;
+    while(i < len) {
+        sscanf(pos,"%2hhx",&val[i]);
+        pos+=2;
+        i++;
+    }
+    return val;
+}
\ No newline at end of file
diff --git a/core/misc_tools.h b/core/misc_tools.h
new file mode 100644
index 00000000..29b37ce5
--- /dev/null
+++ b/core/misc_tools.h
@@ -0,0 +1,29 @@
+/* misc_tools.h
+ * 
+ * Miscellaneous functions and data structures for doing random things.
+ *
+ *  Copyright (C) 2013 Tox project All Rights Reserved.
+ *
+ *  This file is part of Tox.
+ *
+ *  Tox 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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Tox 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 Tox.  If not, see <http://www.gnu.org/licenses/>.
+ *  
+ */
+ 
+#ifndef MISC_TOOLS_H
+#define MISC_TOOLS_H
+
+unsigned char * hex_string_to_bin(char hex_string[]);
+ 
+#endif // MISC_TOOLS_H
\ No newline at end of file
diff --git a/other/DHT_bootstrap.c b/other/DHT_bootstrap.c
index 8942c237..61901a15 100644
--- a/other/DHT_bootstrap.c
+++ b/other/DHT_bootstrap.c
@@ -29,6 +29,7 @@
 
 #include "../core/DHT.h"
 #include "../core/friend_requests.h"
+#include "../core/misc_tools.h"
 
 //Sleep function (x = milliseconds)
 #ifdef WIN32
@@ -41,21 +42,7 @@
 
 #define PORT 33445
 
-//TODO: rewrite
-unsigned char * hex_string_to_bin(char hex_string[])
-{
-    size_t len = strlen(hex_string);
-    unsigned char * val = malloc(len);
-    char * pos = hex_string;
-    int i=0;
-    while(i < len)
-    {
-        sscanf(pos,"%2hhx",&val[i]);
-        pos+=2;
-        i++;
-    }
-    return val;
-}
+
 
 void manage_keys()
 {
diff --git a/testing/DHT_cryptosendfiletest.c b/testing/DHT_cryptosendfiletest.c
index 5c3a0256..23423497 100644
--- a/testing/DHT_cryptosendfiletest.c
+++ b/testing/DHT_cryptosendfiletest.c
@@ -38,6 +38,7 @@
 #include "../core/network.h"
 #include "../core/DHT.h"
 #include "../core/net_crypto.h"
+#include "../core/misc_tools.h"
 
 #include <string.h>
 
@@ -60,22 +61,6 @@ void printip(IP_Port ip_port)
     printf("\nIP: %u.%u.%u.%u Port: %u\n",ip_port.ip.c[0],ip_port.ip.c[1],ip_port.ip.c[2],ip_port.ip.c[3],ntohs(ip_port.port));
 }
 
-//TODO: rewrite
-unsigned char * hex_string_to_bin(char hex_string[])
-{
-    size_t len = strlen(hex_string);
-    unsigned char * val = malloc(len);
-    char * pos = hex_string;
-    int i=0;
-    while(i < len)
-    {
-        sscanf(pos,"%2hhx",&val[i]);
-        pos+=2;
-        i++;
-    }
-    return val;
-}
-
 uint8_t self_public_key[crypto_box_PUBLICKEYBYTES];
 
 int main(int argc, char *argv[])
diff --git a/testing/DHT_test.c b/testing/DHT_test.c
index d14e1577..92845b7e 100644
--- a/testing/DHT_test.c
+++ b/testing/DHT_test.c
@@ -30,6 +30,7 @@
 //#include "../core/network.h"
 #include "../core/DHT.c"
 #include "../core/friend_requests.c"
+#include "../core/misc_tools.h"
 
 #include <string.h>
 
@@ -114,22 +115,6 @@ void printpacket(uint8_t * data, uint32_t length, IP_Port ip_port)
     printf("\n--------------------END-----------------------------\n\n\n");
 }
 
-//TODO: rewrite
-unsigned char * hex_string_to_bin(char hex_string[])
-{
-    size_t len = strlen(hex_string);
-    unsigned char * val = malloc(len);
-    char * pos = hex_string;
-    int i=0;
-    while(i < len)
-    {
-        sscanf(pos,"%2hhx",&val[i]);
-        pos+=2;
-        i++;
-    }
-    return val;
-}
-
 int main(int argc, char *argv[])
 {
     //memcpy(self_client_id, "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", 32);
diff --git a/testing/Messenger_test.c b/testing/Messenger_test.c
index f38eb962..6ad5c7dd 100644
--- a/testing/Messenger_test.c
+++ b/testing/Messenger_test.c
@@ -38,6 +38,7 @@
  */
 
 #include "../core/Messenger.h"
+#include "../core/misc_tools.h"
 
 #ifdef WIN32
 
@@ -50,22 +51,6 @@
 
 #endif
 
-//TODO: rewrite
-unsigned char * hex_string_to_bin(char hex_string[])
-{
-    size_t len = strlen(hex_string);
-    unsigned char * val = malloc(len);
-    char * pos = hex_string;
-    int i=0;
-    while(i < len)
-    {
-        sscanf(pos,"%2hhx",&val[i]);
-        pos+=2;
-        i++;
-    }
-    return val;
-}
-
 void print_request(uint8_t * public_key, uint8_t * data, uint16_t length)
 {
     printf("Friend request recieved from: \n");
diff --git a/testing/nTox.c b/testing/nTox.c
index 27654191..e202a697 100644
--- a/testing/nTox.c
+++ b/testing/nTox.c
@@ -22,6 +22,7 @@
  */
 
 #include "nTox.h"
+#include "../core/misc_tools.h"
 #include <stdio.h>
 #include <time.h>
 #ifdef WIN32
@@ -46,21 +47,6 @@ void new_lines(char *line)
     do_refresh();
 }
 
-//TODO: rewrite
-unsigned char * hex_string_to_bin(char hex_string[])
-{
-    size_t len = strlen(hex_string);
-    unsigned char * val = malloc(len);
-    char * pos = hex_string;
-    int i=0;
-    while(i < len) {
-        sscanf(pos,"%2hhx",&val[i]);
-        pos+=2;
-        i++;
-    }
-    return val;
-}
-
 void line_eval(char lines[HISTORY][STRING_LENGTH], char *line)
 {
     if (line[0] == '/') {