also fix RPC password

home.admin/20initDialog.sh

@@ -58,8 +58,6 @@ Write them down & store them in a safe place.
       passwordValid=0
     fi
 
-  done
-
     # change user passwords and then change hostname
     echo "pi:$result" | sudo chpasswd
     echo "root:$result" | sudo chpasswd
@@ -72,13 +70,19 @@ dialog --backtitle "RaspiBlitz" --msgbox "OK - password changed to '$result'\nfo
 
     # repeat until user input is nit length 0
     result=""
-while [ ${#result} -lt 8 ]
-  do
     dialog --backtitle "RaspiBlitz - Setup"\
-       --inputbox "Enter your RPC Password B (min 8 chars):" 9 52 2>$_temp
+    --inputbox "Enter your RPC Password B:" 9 52 2>$_temp
     result=$( cat $_temp )
     shred $_temp
-  done
+
+    clearedResult=$(echo "${result}" | tr -dc '[:alnum:]-.' | tr -d ' ')
+    if [ ${#clearedResult} != ${#result} ] || [ ${#clearedResult} -eq 0]; then
+      clear
+      echo "FAIL - Password contained not allowed chars (see next screen)"
+      echo "Press ENTER to continue to start again"
+      read key
+      passwordValid=0
+    else
     
       # set Blockchain RPC Password (for admin cli & template for user bitcoin)
       sed -i "s/^rpcpassword=.*/rpcpassword=${result}/g" /home/admin/assets/${network}.conf
@@ -87,3 +91,10 @@ sed -i "s/^${network}d.rpcpass=.*/${network}d.rpcpass=${result}/g" /home/admin/a
       # success info dialog
       dialog --backtitle "RaspiBlitz - SetUP" --msgbox "OK - RPC password changed to '$result'\n\nNow starting the Setup of your RaspiBlitz." 7 52
       clear
+  
+    fi
+
+  done
+
+
+