public KerberosArmoredRequest(IFastArmor fastArmor, Checksum checkSum, long etype, byte[] armorKey, KerberosFastRequest fastReq)
{
FastArmor = fastArmor;
CheckSum = checkSum;
ArmorKey = armorKey;
EType = etype;
FastReq = fastReq;
}
public KerberosArmoredRequest(IFastArmor fastArmor, Checksum checkSum, long etype, byte[] armorKey, KerberosFastRequest fastReq)
{
FastArmor = fastArmor;
CheckSum = checkSum;
ArmorKey = armorKey;
EType = etype;
FastReq = fastReq;
}
public void Decrypt(byte[] armorKey)
{
ArmorKey = armorKey;
var decrypted = KerberosUtility.Decrypt(
(Cryptographic.EncryptionType)EncFastReq.etype.Value,
armorKey,
EncFastReq.cipher.ByteArrayValue,
(int)KeyUsageNumber.FAST_ENC);
KrbFastReq krbFastReq = new KrbFastReq();
krbFastReq.BerDecode(new Asn1DecodingBuffer(decrypted));
FastReq = new KerberosFastRequest(krbFastReq);
}
public PaFxFastReq CreateTgsPaFxFast(
EncryptionKey armorKey,
KerberosTicket armorTicket,
FastOptions fastOptions,
ApOptions apOptions,
Asn1SequenceOf<PA_DATA> seqPaData,
string sName,
byte[] apReq,
IFastArmor armor = null
)
{
string domain = this.Context.Realm.Value;
PrincipalName sname = new PrincipalName(new KerbInt32((int)PrincipalType.NT_SRV_INST),
KerberosUtility.String2SeqKerbString(sName.Split('/')));
KDC_REQ_BODY innerKdcReqBody = CreateKdcRequestBody(KdcOptions.CANONICALIZE | KdcOptions.FORWARDABLE | KdcOptions.RENEWABLE, sname);
//Generate checksum
var checksumType = KerberosUtility.GetChecksumType(Context.SelectedEType);
var chksum = KerberosUtility.GetChecksum(
armorKey.keyvalue.ByteArrayValue,
apReq,
(int)KeyUsageNumber.FAST_REQ_CHECKSUM,
checksumType);
Checksum checkSum = new Checksum(new KerbInt32((int)checksumType), new Asn1OctetString(chksum));
KerberosFastRequest fastReq = new KerberosFastRequest(fastOptions, seqPaData, innerKdcReqBody);
KerberosArmoredRequest armoredReq
= new KerberosArmoredRequest(armor, checkSum, (long)Context.SelectedEType, armorKey.keyvalue.ByteArrayValue, fastReq);
PA_FX_FAST_REQUEST paFxFastReq = new PA_FX_FAST_REQUEST();
paFxFastReq.SetData(PA_FX_FAST_REQUEST.armored_data, armoredReq.FastArmoredReq);
PaFxFastReq paFxfast = new PaFxFastReq(paFxFastReq);
return paFxfast;
}
public PaFxFastReq CreateAsPaFxFast(
EncryptionKey subKey,
FastOptions fastOptions,
ApOptions apOptions,
Asn1SequenceOf<PA_DATA> seqPaData,
string sName,
KDC_REQ_BODY kdcReqBody,
KrbFastArmorType armorType
)
{
string domain = this.Context.Realm.Value;
PrincipalName sname =
new PrincipalName(new KerbInt32((int)PrincipalType.NT_SRV_INST), KerberosUtility.String2SeqKerbString(sName, domain));
var armorKey = KerberosUtility.MakeArmorKey(
Context.SelectedEType,
subKey.keyvalue.ByteArrayValue,
Context.ArmorSessionKey.keyvalue.ByteArrayValue);
Context.FastArmorkey = new EncryptionKey(new KerbInt32((long)Context.SelectedEType), new Asn1OctetString(armorKey));
Asn1BerEncodingBuffer encodebuf = new Asn1BerEncodingBuffer();
kdcReqBody.BerEncode(encodebuf);
var checksumType = KerberosUtility.GetChecksumType(Context.SelectedEType);
var chksum = KerberosUtility.GetChecksum(
armorKey,
encodebuf.Data,
(int)KeyUsageNumber.FAST_REQ_CHECKSUM,
checksumType);
Checksum checkSum = new Checksum(new KerbInt32((int)checksumType), new Asn1OctetString(chksum));
Authenticator plaintextAuthenticator = CreateAuthenticator(Context.ArmorTicket, null, subKey);
KerberosApRequest apReq = new KerberosApRequest(Context.Pvno,
new APOptions(KerberosUtility.ConvertInt2Flags((int)apOptions)),
Context.ArmorTicket,
plaintextAuthenticator,
KeyUsageNumber.AP_REQ_Authenticator);
KDC_REQ_BODY innerKdcReqBody = CreateKdcRequestBody(KdcOptions.CANONICALIZE | KdcOptions.FORWARDABLE | KdcOptions.RENEWABLE, sname);
KerberosFastRequest fastReq = new KerberosFastRequest(fastOptions, seqPaData, innerKdcReqBody);
FastArmorApRequest fastArmor = new FastArmorApRequest(apReq.Request);
fastArmor.armorType = armorType;
KerberosArmoredRequest armoredReq
= new KerberosArmoredRequest(fastArmor, checkSum, (long)Context.SelectedEType, armorKey, fastReq);
PA_FX_FAST_REQUEST paFxFastReq = new PA_FX_FAST_REQUEST();
paFxFastReq.SetData(PA_FX_FAST_REQUEST.armored_data, armoredReq.FastArmoredReq);
PaFxFastReq paFxfast = new PaFxFastReq(paFxFastReq);
return paFxfast;
}
public void Decrypt(byte[] armorKey)
{
ArmorKey = armorKey;
var decrypted = KerberosUtility.Decrypt(
(Cryptographic.EncryptionType)EncFastReq.etype.Value,
armorKey,
EncFastReq.cipher.ByteArrayValue,
(int)KeyUsageNumber.FAST_ENC);
KrbFastReq krbFastReq = new KrbFastReq();
krbFastReq.BerDecode(new Asn1DecodingBuffer(decrypted));
FastReq = new KerberosFastRequest(krbFastReq);
}
