internal static void process_authreq(RdpPacket data) { byte[] destinationArray = new byte[10]; byte[] outData = new byte[10]; byte[] buffer3 = new byte[20]; byte[] buffer4 = new byte[30]; byte[] signature = new byte[0x10]; RC4 rc = new RC4(); byte[] buffer6 = null; if (!parse_authreq(data)) { throw new RDFatalException("Authentication request is incorrect!"); } Array.Copy(m_In_Token, 0, destinationArray, 0, 10); buffer6 = new byte[m_LicenceKey.Length]; Array.Copy(m_LicenceKey, 0, buffer6, 0, m_LicenceKey.Length); rc.engineInitDecrypt(buffer6); rc.crypt(m_In_Token, 0, 10, outData, 0); byte[] sourceArray = generate_hwid(); Array.Copy(outData, 0, buffer4, 0, 10); Array.Copy(sourceArray, 0, buffer4, 10, 20); signature = Secure.sign(m_Licence_Sign_Key, 0x10, 0x10, buffer4, buffer4.Length); Array.Copy(m_LicenceKey, 0, buffer6, 0, m_LicenceKey.Length); rc.engineInitEncrypt(buffer6); rc.crypt(sourceArray, 0, 20, buffer3, 0); send_authresp(destinationArray, buffer3, signature); }
internal static void SendToCannel(RdpPacket secData, int flags, int channel) { secData.Position = 0L; byte[] buffer = new byte[secData.Length]; secData.Read(buffer, 0, buffer.Length); if ((Secure.enc_count == 0x1000) && Secure.RDPEncrypted()) { Secure.m_Encrypt_Key = Secure.update(Secure.m_Encrypt_Key, Secure._r); byte[] destinationArray = new byte[Secure.m_KeyLength]; Array.Copy(Secure.m_Encrypt_Key, 0, destinationArray, 0, Secure.m_KeyLength); Secure.m_RC4_Enc.engineInitEncrypt(destinationArray); Secure.enc_count = 0; } if (Secure.RDPEncrypted()) { byte[] buffer1 = Secure.sign(Secure.m_Sec_Sign_Key, 8, Secure.m_KeyLength, buffer, buffer.Length); byte[] buffer2 = Secure.m_RC4_Enc.crypt(buffer); secData = new RdpPacket(); secData.WriteLittleEndian32(flags); secData.Write(buffer1, 0, buffer1.Length); secData.Write(buffer2, 0, buffer2.Length); } else { flags &= -9; secData = new RdpPacket(); if (flags != 0) { secData.WriteLittleEndian32(flags); } secData.Write(buffer, 0, buffer.Length); } SendMCS(secData, channel); Secure.enc_count++; }