public void Decode(AsnElt body)
{
Tickets = new List <Ticket>();
foreach (AsnElt s in body.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
pvno = Convert.ToInt32(firstElement.GetInteger());
break;
case 1:
MessageType = Convert.ToInt32(firstElement.GetInteger());
break;
case 2:
foreach (AsnElt ae in firstElement.FirstElement.EnumerateElements())
{
Tickets.Add(new Ticket(ae));
}
break;
case 3:
EncryptedPart = new EncKrbCredPart(firstElement);
break;
default:
break;
}
}
}
public KRB_ERROR(AsnElt body)
{
foreach (AsnElt s in body.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
pvno = Convert.ToUInt32(firstElement.GetInteger());
break;
case 1:
msg_type = Convert.ToUInt32(firstElement.GetInteger());
break;
case 2:
ctime = firstElement.GetTime();
break;
case 3:
cusec = Convert.ToUInt32(firstElement.GetInteger());
break;
case 4:
stime = firstElement.GetTime();
break;
case 5:
susec = Convert.ToUInt32(firstElement.GetInteger());
break;
case 6:
ErrorCode = Convert.ToUInt32(firstElement.GetInteger());
break;
case 7:
crealm = Encoding.ASCII.GetString(firstElement.GetOctetString());
break;
case 8:
cname = new PrincipalName(firstElement);
break;
case 9:
realm = Encoding.ASCII.GetString(firstElement.GetOctetString());
break;
case 10:
sname = new PrincipalName(firstElement);
break;
default:
break;
}
}
}
public AS_REQ(byte[] data)
{
// decode the supplied bytes to an AsnElt object
data = AsnIO.FindBER(data);
AsnElt asn_AS_REQ = AsnElt.Decode(data);
padata = new List <PA_DATA>();
// AS-REQ::= [APPLICATION 10] KDC-REQ
// tag class == 1
// tag class == 10
// SEQUENCE
if (asn_AS_REQ.TagValue != 10)
{
throw new System.Exception("AS-REQ tag value should be 10");
}
if ((asn_AS_REQ.Count != 1) || (asn_AS_REQ.FirstElement.TagValue != 16))
{
throw new System.Exception("First AS-REQ sub should be a sequence");
}
// extract the KDC-REP out
foreach (AsnElt s in asn_AS_REQ.FirstElement.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 1:
pvno = firstElement.GetInteger();
break;
case 2:
msg_type = firstElement.GetInteger();
break;
case 3:
// sequence of pa-data
foreach (AsnElt pa in firstElement.EnumerateElements())
{
padata.Add(new PA_DATA(pa));
}
break;
case 4:
// KDC-REQ-BODY
req_body = new KDCReqBody(firstElement);
break;
default:
throw new System.Exception(String.Format("Invalid tag AS-REQ value : {0}", s.TagValue));
}
}
}
private void Decode(AsnElt asn_TGS_REP)
{
// TGS - REP::= [APPLICATION 13] KDC - REP
if (asn_TGS_REP.TagValue != 13)
{
throw new System.Exception("TGS-REP tag value should be 11");
}
if ((asn_TGS_REP.Count != 1) || (asn_TGS_REP.FirstElement.TagValue != 16))
{
throw new System.Exception("First TGS-REP sub should be a sequence");
}
// extract the KDC-REP out
foreach (AsnElt s in asn_TGS_REP.FirstElement.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
pvno = firstElement.GetInteger();
break;
case 1:
msg_type = firstElement.GetInteger();
break;
case 2:
// sequence of pa-data
padata = new PA_DATA(firstElement);
break;
case 3:
crealm = Encoding.ASCII.GetString(firstElement.GetOctetString());
break;
case 4:
cname = new PrincipalName(firstElement);
break;
case 5:
ticket = new Ticket(firstElement.FirstElement);
break;
case 6:
enc_part = new EncryptedData(firstElement);
break;
default:
break;
}
}
}
//Ticket::= [APPLICATION 1] SEQUENCE {
// tkt-vno[0] INTEGER(5),
// realm[1] Realm,
// sname[2] PrincipalName,
// enc-part[3] EncryptedData -- EncTicketPart
//}
public Ticket(AsnElt body)
{
foreach (AsnElt s in body.EnumerateElements())
{
AsnElt firstItem = s.FirstElement;
switch (s.TagValue)
{
case 0:
tkt_vno = Convert.ToInt32(firstItem.GetInteger());
break;
case 1:
realm = Encoding.ASCII.GetString(firstItem.GetOctetString());
break;
case 2:
sname = new PrincipalName(firstItem);
break;
case 3:
enc_part = new EncryptedData(firstItem);
break;
default:
break;
}
}
}
public KrbCredInfo(AsnElt body)
{
foreach (AsnElt s in body.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
key = new EncryptionKey(s);
break;
case 1:
prealm = Encoding.ASCII.GetString(firstElement.GetOctetString());
break;
case 2:
pname = new PrincipalName(firstElement);
break;
case 3:
UInt32 temp = Convert.ToUInt32(firstElement.GetInteger());
byte[] tempBytes = BitConverter.GetBytes(temp);
flags = (Interop.TicketFlags)BitConverter.ToInt32(tempBytes, 0);
break;
case 4:
authtime = firstElement.GetTime();
break;
case 5:
starttime = firstElement.GetTime();
break;
case 6:
endtime = firstElement.GetTime();
break;
case 7:
renew_till = firstElement.GetTime();
break;
case 8:
srealm = Encoding.ASCII.GetString(firstElement.GetOctetString());
break;
case 9:
sname = new PrincipalName(firstElement);
break;
default:
break;
}
}
}
public EncryptedData(AsnElt body)
{
foreach (AsnElt s in body.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
etype = Convert.ToInt32(firstElement.GetInteger());
break;
case 1:
kvno = Convert.ToUInt32(firstElement.GetInteger());
break;
case 2:
cipher = firstElement.GetOctetString();
break;
default:
break;
}
}
}
public Checksum(AsnElt body)
{
foreach (AsnElt s in body.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
cksumtype = Convert.ToInt32(firstElement.GetInteger());
break;
case 2:
checksum = firstElement.GetOctetString();
break;
default:
break;
}
}
}
//LastReq::= SEQUENCE OF SEQUENCE {
// lr-type[0] Int32,
// lr-value[1] KerberosTime
//}
public LastReq(AsnElt body)
{
foreach (AsnElt s in body.FirstElement.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
lr_type = Convert.ToInt32(firstElement.GetInteger());
break;
case 1:
lr_value = firstElement.GetTime();
break;
default:
break;
}
}
}
public EncryptionKey(AsnElt body)
{
foreach (AsnElt s in body.FirstElement.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
keytype = (Rubeus.Interop.KERB_ETYPE)Convert.ToInt32(firstElement.GetInteger());
break;
case 1:
keyvalue = firstElement.GetOctetString();
break;
case 2:
keyvalue = firstElement.GetOctetString();
break;
default:
break;
}
}
}
//EncKDCRepPart::= SEQUENCE {
// key[0] EncryptionKey,
// last-req[1] LastReq,
// nonce[2] UInt32,
// key-expiration[3] KerberosTime OPTIONAL,
// flags[4] TicketFlags,
// authtime[5] KerberosTime,
// starttime[6] KerberosTime OPTIONAL,
// endtime[7] KerberosTime,
// renew-till[8] KerberosTime OPTIONAL,
// srealm[9] Realm,
// sname[10] PrincipalName,
// caddr[11] HostAddresses OPTIONAL,
// encrypted-pa-data[12] SEQUENCE OF PA-DATA OPTIONAL
//}
public EncKDCRepPart(AsnElt body)
{
foreach (AsnElt s in body.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
key = new EncryptionKey(s);
break;
case 1:
lastReq = new LastReq(firstElement);
break;
case 2:
nonce = Convert.ToUInt32(firstElement.GetInteger());
break;
case 3:
key_expiration = firstElement.GetTime();
break;
case 4:
UInt32 temp = Convert.ToUInt32(firstElement.GetInteger());
byte[] tempBytes = BitConverter.GetBytes(temp);
flags = (Interop.TicketFlags)BitConverter.ToInt32(tempBytes, 0);
break;
case 5:
authtime = firstElement.GetTime();
break;
case 6:
starttime = firstElement.GetTime();
break;
case 7:
endtime = firstElement.GetTime();
break;
case 8:
renew_till = firstElement.GetTime();
break;
case 9:
realm = Encoding.ASCII.GetString(firstElement.GetOctetString());
break;
case 10:
// sname (optional)
sname = new PrincipalName(firstElement);
break;
case 11:
// HostAddresses, skipped for now
break;
case 12:
// encrypted-pa-data, skipped for now
break;
default:
break;
}
}
}
public KDCReqBody(AsnElt body)
{
foreach (AsnElt s in body.EnumerateElements())
{
AsnElt firstElement = s.FirstElement;
switch (s.TagValue)
{
case 0:
UInt32 temp = Convert.ToUInt32(firstElement.GetInteger());
byte[] tempBytes = BitConverter.GetBytes(temp);
kdcOptions = (Interop.KdcOptions)BitConverter.ToInt32(tempBytes, 0);
break;
case 1:
// optional
cname = new PrincipalName(firstElement);
break;
case 2:
realm = Encoding.ASCII.GetString(firstElement.GetOctetString());
break;
case 3:
// optional
sname = new PrincipalName(firstElement);
break;
case 4:
// optional
from = firstElement.GetTime();
break;
case 5:
till = firstElement.GetTime();
break;
case 6:
// optional
rtime = firstElement.GetTime();
break;
case 7:
nonce = Convert.ToUInt32(firstElement.GetInteger());
break;
case 8:
//etypes = new Enums.KERB_ETYPE[s.Sub[0].Sub.Length];
etypes = new List <Interop.KERB_ETYPE>();
foreach (AsnElt item in firstElement.EnumerateElements())
{
//etypes[i] = (Enums.KERB_ETYPE)Convert.ToUInt32(item.GetInteger());
etypes.Add((Interop.KERB_ETYPE)Convert.ToUInt32(item.GetInteger()));
}
break;
case 9:
// addresses (optional)
break;
case 10:
// enc authorization-data (optional)
break;
case 11:
// additional-tickets (optional)
break;
default:
break;
}
}
}
