def key_packet(context, data):
if verbose:
print("[KeyPacket] Decrypting RC4 key packet!")
rsa_blob = data[0x8:0x88]
decrypted = rsaDecrypter.decrypt(rsa_blob)
if decrypted is None:
print(
"[KeyPacket] Could not decrypt RSA for client %s, Perhaps their client's key is unmodified? Hanging up."
% context.transport.getPeer().host)
brokenlist.append(context.transport.getPeer().host)
context.transport.loseConnection()
return None
if verbose:
print("[KeyPacket] Client %s RC4 key %s" % (
context.transport.getPeer().host,
''.join("%02x " % b for b in bytearray(decrypted[0x10:0x20])),
))
context.c4crypto = PSO2RC4(decrypted[0x10:0x20])
context.peer.c4crypto = PSO2RC4(decrypted[0x10:0x20])
# Re-RSA packet
blob = io.BytesIO()
blob.write(data[:0x8])
blob.write(rsaEncryptor.encrypt(decrypted))
blob.write(data[0x88:len(data)])
blob.flush()
return blob.getvalue()
def key_packet(context, data):
if verbose:
print("[KeyPacket] Decrypting RC4 key packet!")
rsa_blob = data[0x8:0x88]
decrypted = rsaDecrypter.decrypt(rsa_blob)
if decrypted is None:
print(
"[KeyPacket] Could not decrypt RSA for client {}, Perhaps their client's key is unmodified? Hanging up.".format(
context.transport.getPeer().host
)
)
brokenlist.append(context.transport.getPeer().host)
context.transport.loseConnection()
return None
if verbose:
print("[KeyPacket] Client %s RC4 key %s" % (
context.transport.getPeer().host, ''.join("%02x " % b for b in bytearray(decrypted[0x10:0x20])),))
context.c4crypto = PSO2RC4(decrypted[0x10:0x20])
context.peer.c4crypto = PSO2RC4(decrypted[0x10:0x20])
# Re-RSA packet
blob = io.BytesIO()
blob.write(data[:0x8])
blob.write(rsaEncryptor.encrypt(decrypted))
blob.write(data[0x88:len(data)])
blob.flush()
return blob.getvalue()