public void CopyFrom ()
{
/* byte[] data = ASN1Convert.FromOid ("1.2.840.113549.1.7.1").GetBytes (); */
byte[] data = { 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x07, 0x01 };
AsnEncodedData aed = new AsnEncodedData (data);
Pkcs9ContentType ct = new Pkcs9ContentType ();
ct.CopyFrom (aed);
}