internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbApReq, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
if (!explicitReader.TryReadInt32(out decoded.ProtocolVersionNumber))
{
explicitReader.ThrowIfNotEmpty();
}
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
if (!explicitReader.TryReadInt32(out decoded.MessageType))
{
explicitReader.ThrowIfNotEmpty();
}
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 2));
if (explicitReader.TryReadPrimitiveBitStringValue(out _, out ReadOnlyMemory <byte> tmpApOptions))
{
decoded.ApOptions = (ApOptions)tmpApOptions.AsLong();
}
else
{
decoded.ApOptions = (ApOptions)explicitReader.ReadBitString(out _).AsLong();
}
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 3));
KrbTicket.Decode <KrbTicket>(explicitReader, out decoded.Ticket);
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 4));
KrbEncryptedData.Decode <KrbEncryptedData>(explicitReader, out decoded.Authenticator);
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbTicket, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
if (!explicitReader.TryReadInt32(out int tmpTicketNumber))
{
explicitReader.ThrowIfNotEmpty();
}
decoded.TicketNumber = tmpTicketNumber;
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
decoded.Realm = explicitReader.ReadCharacterString(UniversalTagNumber.GeneralString);
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 2));
KrbPrincipalName.Decode <KrbPrincipalName>(explicitReader, out KrbPrincipalName tmpSName);
decoded.SName = tmpSName;
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 3));
KrbEncryptedData.Decode <KrbEncryptedData>(explicitReader, out KrbEncryptedData tmpEncryptedPart);
decoded.EncryptedPart = tmpEncryptedPart;
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbApRep, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
if (!explicitReader.TryReadInt32(out int tmpProtocolVersionNumber))
{
explicitReader.ThrowIfNotEmpty();
}
decoded.ProtocolVersionNumber = tmpProtocolVersionNumber;
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
if (!explicitReader.TryReadInt32(out MessageType tmpMessageType))
{
explicitReader.ThrowIfNotEmpty();
}
decoded.MessageType = tmpMessageType;
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 2));
KrbEncryptedData.Decode <KrbEncryptedData>(explicitReader, out KrbEncryptedData tmpEncryptedPart);
decoded.EncryptedPart = tmpEncryptedPart;
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbFastArmoredRep, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
KrbEncryptedData.Decode <KrbEncryptedData>(explicitReader, out KrbEncryptedData tmpEncFastRep);
decoded.EncFastRep = tmpEncFastRep;
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
public DateTimeOffset DecryptTimestamp(KerberosKey key)
{
var timestampPaData = this.PaData.FirstOrDefault(p => p.Type == PaDataType.PA_ENC_TIMESTAMP);
if (timestampPaData == null)
{
return(DateTimeOffset.MinValue);
}
var encryptedTimestamp = KrbEncryptedData.Decode(timestampPaData.Value);
var tsEnc = encryptedTimestamp.Decrypt(key, KeyUsage.PaEncTs, d => KrbPaEncTsEnc.Decode(d));
var timestamp = tsEnc.PaTimestamp;
if (tsEnc.PaUSec > 0)
{
timestamp = timestamp.AddTicks(tsEnc.PaUSec.Value / 10);
}
return(timestamp);
}
internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbFastArmoredReq, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
KrbFastArmor.Decode <KrbFastArmor>(explicitReader, out KrbFastArmor tmpArmor);
decoded.Armor = tmpArmor;
explicitReader.ThrowIfNotEmpty();
}
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
KrbChecksum.Decode <KrbChecksum>(explicitReader, out KrbChecksum tmpRequestChecksum);
decoded.RequestChecksum = tmpRequestChecksum;
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 2));
KrbEncryptedData.Decode <KrbEncryptedData>(explicitReader, out KrbEncryptedData tmpEncryptedFastRequest);
decoded.EncryptedFastRequest = tmpEncryptedFastRequest;
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbKdcRep, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
AsnReader collectionReader;
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
if (!explicitReader.TryReadInt32(out decoded.ProtocolVersionNumber))
{
explicitReader.ThrowIfNotEmpty();
}
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
if (!explicitReader.TryReadInt32(out decoded.MessageType))
{
explicitReader.ThrowIfNotEmpty();
}
explicitReader.ThrowIfNotEmpty();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 2)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 2));
// Decode SEQUENCE OF for PaData
{
collectionReader = explicitReader.ReadSequence();
var tmpList = new List <KrbPaData>();
KrbPaData tmpItem;
while (collectionReader.HasData)
{
KrbPaData.Decode <KrbPaData>(collectionReader, out tmpItem);
tmpList.Add(tmpItem);
}
decoded.PaData = tmpList.ToArray();
}
explicitReader.ThrowIfNotEmpty();
}
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 3));
decoded.CRealm = explicitReader.ReadCharacterString(UniversalTagNumber.GeneralString);
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 4));
KrbPrincipalName.Decode <KrbPrincipalName>(explicitReader, out decoded.CName);
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 5));
KrbTicket.Decode <KrbTicket>(explicitReader, out decoded.Ticket);
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 6));
KrbEncryptedData.Decode <KrbEncryptedData>(explicitReader, out decoded.EncPart);
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbCred, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
AsnReader collectionReader;
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
if (!explicitReader.TryReadInt32(out int tmpProtocolVersionNumber))
{
explicitReader.ThrowIfNotEmpty();
}
decoded.ProtocolVersionNumber = tmpProtocolVersionNumber;
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
if (!explicitReader.TryReadInt32(out MessageType tmpMessageType))
{
explicitReader.ThrowIfNotEmpty();
}
decoded.MessageType = tmpMessageType;
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 2));
// Decode SEQUENCE OF for Tickets
{
collectionReader = explicitReader.ReadSequence();
var tmpList = new List <KrbTicket>();
KrbTicket tmpItem;
while (collectionReader.HasData)
{
KrbTicket.Decode <KrbTicket>(collectionReader, out KrbTicket tmp);
tmpItem = tmp;
tmpList.Add(tmpItem);
}
decoded.Tickets = tmpList.ToArray();
}
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 3));
KrbEncryptedData.Decode <KrbEncryptedData>(explicitReader, out KrbEncryptedData tmpEncryptedPart);
decoded.EncryptedPart = tmpEncryptedPart;
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbKdcReqBody, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
AsnReader collectionReader;
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
if (explicitReader.TryReadPrimitiveBitStringValue(out _, out ReadOnlyMemory <byte> tmpKdcOptions))
{
decoded.KdcOptions = (KdcOptions)tmpKdcOptions.AsLong();
}
else
{
decoded.KdcOptions = (KdcOptions)explicitReader.ReadBitString(out _).AsLong();
}
explicitReader.ThrowIfNotEmpty();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
KrbPrincipalName.Decode <KrbPrincipalName>(explicitReader, out KrbPrincipalName tmpCName);
decoded.CName = tmpCName;
explicitReader.ThrowIfNotEmpty();
}
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 2));
decoded.Realm = explicitReader.ReadCharacterString(UniversalTagNumber.GeneralString);
explicitReader.ThrowIfNotEmpty();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 3)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 3));
KrbPrincipalName.Decode <KrbPrincipalName>(explicitReader, out KrbPrincipalName tmpSName);
decoded.SName = tmpSName;
explicitReader.ThrowIfNotEmpty();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 4)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 4));
decoded.From = explicitReader.ReadGeneralizedTime();
explicitReader.ThrowIfNotEmpty();
}
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 5));
decoded.Till = explicitReader.ReadGeneralizedTime();
explicitReader.ThrowIfNotEmpty();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 6)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 6));
decoded.RTime = explicitReader.ReadGeneralizedTime();
explicitReader.ThrowIfNotEmpty();
}
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 7));
if (!explicitReader.TryReadInt32(out int tmpNonce))
{
explicitReader.ThrowIfNotEmpty();
}
decoded.Nonce = tmpNonce;
explicitReader.ThrowIfNotEmpty();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 8));
// Decode SEQUENCE OF for EType
{
collectionReader = explicitReader.ReadSequence();
var tmpList = new List <EncryptionType>();
EncryptionType tmpItem;
while (collectionReader.HasData)
{
if (!collectionReader.TryReadInt32(out EncryptionType tmp))
{
collectionReader.ThrowIfNotEmpty();
}
tmpItem = tmp;
tmpList.Add(tmpItem);
}
decoded.EType = tmpList.ToArray();
}
explicitReader.ThrowIfNotEmpty();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 9)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 9));
// Decode SEQUENCE OF for Addresses
{
collectionReader = explicitReader.ReadSequence();
var tmpList = new List <KrbHostAddress>();
KrbHostAddress tmpItem;
while (collectionReader.HasData)
{
KrbHostAddress.Decode <KrbHostAddress>(collectionReader, out KrbHostAddress tmp);
tmpItem = tmp;
tmpList.Add(tmpItem);
}
decoded.Addresses = tmpList.ToArray();
}
explicitReader.ThrowIfNotEmpty();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 10)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 10));
KrbEncryptedData.Decode <KrbEncryptedData>(explicitReader, out KrbEncryptedData tmpEncAuthorizationData);
decoded.EncAuthorizationData = tmpEncAuthorizationData;
explicitReader.ThrowIfNotEmpty();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 11)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 11));
// Decode SEQUENCE OF for AdditionalTickets
{
collectionReader = explicitReader.ReadSequence();
var tmpList = new List <KrbTicket>();
KrbTicket tmpItem;
while (collectionReader.HasData)
{
KrbTicket.Decode <KrbTicket>(collectionReader, out KrbTicket tmp);
tmpItem = tmp;
tmpList.Add(tmpItem);
}
decoded.AdditionalTickets = tmpList.ToArray();
}
explicitReader.ThrowIfNotEmpty();
}
sequenceReader.ThrowIfNotEmpty();
}
