public virtual byte[] DecryptByteArray(byte[] b)
{
try {
MemoryStream ba = new MemoryStream();
IDecryptor dec = securityHandler.GetDecryptor();
byte[] b2 = dec.Update(b, 0, b.Length);
if (b2 != null)
{
ba.Write(b2);
}
b2 = dec.Finish();
if (b2 != null)
{
ba.Write(b2);
}
return(ba.ToArray());
}
catch (System.IO.IOException e) {
throw new PdfException(PdfException.PdfEncryption, e);
}
}