ProtectedData.Unprotect (DPAPI) stops working after password change

Question

Suppose I encrypt data and write it to a file like this:

byte[] encrypted =
    ProtectedData.Protect(plain, null, DataProtectionScope.CurrentUser);
File.Wri         


        

Answer 1

How do you change the password? Using the normal procedure and specifying the old password should work with ProtectedData, while setting a new password under computer management wouldn't.