System.Runtime.InteropServices.MarshalTests.SecureStringToBSTR C# (CSharp) Method

        public static void SecureStringToBSTR(string data)
        {
            using (SecureString str = ToSecureString(data))
            {
                IntPtr bstr = Marshal.SecureStringToBSTR(str);
                try
                {
                    string actual = Marshal.PtrToStringBSTR(bstr);
                    Assert.Equal(data, actual);
                }
                finally
                {
                    Marshal.ZeroFreeBSTR(bstr);
                }
            }
        }