public static void Consume(this SecureString ss, Action <byte[]> method)
{
IntPtr bstr = IntPtr.Zero;
byte[] workArray = null;
try
{
bstr = Marshal.SecureStringToBSTR(ss);
unsafe
{
byte *bstrBytes = (byte *)bstr;
workArray = new byte[ss.Length];
for (int i = 0; i < workArray.Length; i++)
{
workArray[i] = *bstrBytes++; bstrBytes++;
}
}
method(workArray);
}
finally
{
ss.Dispose();
var rng = new RNGCryptoServiceProvider();
if (workArray != null)
{
rng.ClearBytes(workArray, 0, workArray.Length);
}
if (bstr != IntPtr.Zero)
{
Marshal.ZeroFreeBSTR(bstr);
}
}
}