private SPNEGONegTokenResp Decode(byte[] data)
{
SPNEGONegTokenResp spnegoNegTokenResp = new SPNEGONegTokenResp
{
NegState = ASN1.GetTagBytes(1, data)[0],
SupportedMech = ASN1.GetTagBytes(6, data),
ResponseToken = ASN1.GetTagBytes(4, data)
};
return(spnegoNegTokenResp);
}
public NTLMChallenge(byte[] data, bool decode)
{
if (decode)
{
SPNEGONegTokenResp token = this.Decode(data);
ReadBytes(token.ResponseToken, 0);
}
else
{
ReadBytes(data, 0);
}
}
public NTLMChallenge(byte[] data)
{
string signature = Encoding.UTF8.GetString(data);
if (signature.StartsWith("NTLMSSP"))
{
ReadBytes(data, 0);
}
else
{
SPNEGONegTokenResp token = this.Decode(data);
this.ReadBytes(token.ResponseToken, 0);
}
}
public NTLMResponse(byte[] data, bool decode)
{
if (decode)
{
SPNEGONegTokenResp token = this.Decode(data);
this.ReadBytes(token.ResponseToken);
}
else
{
ReadBytes(data);
}
ParseValues();
}
public byte[] Encode(byte[] data)
{
SPNEGONegTokenResp spnegoNegTokenResp = new SPNEGONegTokenResp();
spnegoNegTokenResp.NegState = 1;
spnegoNegTokenResp.SupportedMech = new byte[10] {
0x2b, 0x06, 0x01, 0x04, 0x01, 0x82, 0x37, 0x02, 0x02, 0x0a
};
byte[] segment1 = ASN1.Encode(0x04, data);
segment1 = ASN1.Encode(0xa2, segment1);
byte[] segment2 = ASN1.Encode(0x06, spnegoNegTokenResp.SupportedMech);
segment2 = ASN1.Encode(0xa1, segment2);
byte[] segment3 = ASN1.Encode(0x0a, new byte[1] {
spnegoNegTokenResp.NegState
});
segment3 = ASN1.Encode(0xa0, segment3);
byte[] asn1Data = Utilities.BlockCopy(segment3, segment2, segment1);
asn1Data = ASN1.Encode(0x30, asn1Data);
asn1Data = ASN1.Encode(0xa1, asn1Data);
return(asn1Data);
}
