Non-human readable file handling
Posted on 2004-08-15
I want to store a password (which the user has chosen to login to my program) in an external file.
However i don't want the external file to be readable in anyway, e.g. when opening the file in windows notepad it should not display the password text. I have tried binary files (FileOutputStream and DataOutputStream classes), although the text editor can't read the file properly it still displays the password text i have written to it.
Is there any way in java i can save a password in an external file and be 100% sure that the password cannot be retrieved unless read by my program. I was thinking along the lines of just saving it using some sort of java class rather than having to write some sort of complex algorithm which i write the password with then read it back by reversing the algorithm (not sure if that would make sense to experts!) but i hope you get the idea of what im trying to do.