Unity Script Reference:

static function PasswordField(position: Rect, password: string, style: GUIStyle = EditorStyles.textField): string;

static string PasswordField(Rect position, string password, GUIStyle style = EditorStyles.textField);

static def PasswordField(position as Rect, password as string, style as GUIStyle = EditorStyles.textField) as string

static function PasswordField(position: Rect, label: string, password: string, style: GUIStyle = EditorStyles.textField): string;

static string PasswordField(Rect position, string label, string password, GUIStyle style = EditorStyles.textField);

static def PasswordField(position as Rect, label as string, password as string, style as GUIStyle = EditorStyles.textField) as string

static function PasswordField(position: Rect, label: GUIContent, password: string, style: GUIStyle = EditorStyles.textField): string;

static string PasswordField(Rect position, GUIContent label, string password, GUIStyle style = EditorStyles.textField);

static def PasswordField(position as Rect, label as GUIContent, password as string, style as GUIStyle = EditorStyles.textField) as string

Parameters

position	Rectangle on the screen to use for the password field.
label	Optional label to display in front of the password field.
password	The password to edit.
style	Optional GUIStyle.

Returns
string The password entered by the user.

Description

Make a text field where the user can enter a password.

This works just like GUI.PasswordField, but correctly responds to select all, etc. in the editor, and it can have an optional label in front.

Password Field in an Editor Window.

	// Editor Script that creates a password field and lets you visualize what have you
	// typed in a label.
	
	class EditorGUIPasswordField extends EditorWindow {
		
		var text : String = "Some text here";
		
		@MenuItem("Examples/Editor Password field usage")
		static function Init() {
			var window = GetWindow(EditorGUIPasswordField);
			window.Show();
		}
		
		function OnGUI() {
			text = EditorGUI.PasswordField(
				Rect(3,3,position.width - 6, 20),
				"Type Something:",
				text);
			EditorGUI.LabelField(
				Rect(3,25,position.width - 5, 20),
			   "Written Text:", 
			   text);		}
	}