Public Shared Sub CopyChars( _
   ByVal input As SecureString, _
   ByVal inputOffset As Integer, _
   ByVal output() As Char, _
   ByVal outputOffset As Integer, _
   ByVal outputLength As Integer _
) 

public static void CopyChars( 
   SecureString input,
   int inputOffset,
   char[] output,
   int outputOffset,
   int outputLength
)

foreach (SecureString ss in MakeStrings())
{
    char[] temp = new char[TEST_PASSWORD.Length];
    SecureStringUtils.CopyChars(ss, 0, temp, 0, temp.Length);
    Assert.AreEqual(TEST_PASSWORD, new String(temp));

    temp = new char[TEST_PASSWORD.Length];
    SecureStringUtils.CopyChars(ss, 4, temp, 4, temp.Length - 4);
    Assert.AreNotEqual(TEST_PASSWORD, new String(temp));
    SecureStringUtils.CopyChars(ss, 0, temp, 0, 4);
    Assert.AreEqual(TEST_PASSWORD, new String(temp));
}

For Each ss As SecureString In MakeStrings()
    Dim temp As Char() = New Char(TEST_PASSWORD.Length) {}
    SecureStringUtils.CopyChars(ss, 0, temp, 0, temp.Length)
    Assert.AreEqual(TEST_PASSWORD, New [String](temp))

    temp = New Char(TEST_PASSWORD.Length) {}
    SecureStringUtils.CopyChars(ss, 4, temp, 4, temp.Length - 4)
    Assert.AreNotEqual(TEST_PASSWORD, New [String](temp))
    SecureStringUtils.CopyChars(ss, 0, temp, 0, 4)
    Assert.AreEqual(TEST_PASSWORD, New [String](temp))
Next