def authenticate(request, client_info):
try:
request_dis = util.disassemble(request)
client_info_dis = util.disassemble(client_info)
except Exception, e:
print '[!!!]ERROR: ', e
error_log('authenticate', e)
return (0, 'Invalid')
def authenticate(self, KDC_key_encrypt, KDC_encrypt_client_info, client_encrypt_client_info):
session_key = self.KDC_decrypt(KDC_key_encrypt)
session_k = des(session_key, CBC, '\0\0\0\0\0\0\0\0', pad=None, padmode=PAD_PKCS5)
KDC_client_info = self.KDC_decrypt(KDC_encrypt_client_info)
client_client_info = session_k.decrypt(client_encrypt_client_info)
try:
KDC_client = util.disassemble(KDC_client_info)
client_client = util.disassemble(client_client_info)
except Exception, e:
print '[!!!]FATAL: ', e
self.error_log('AS authenticate disassemble', e)
return
def addTo(self, client):
try:
assemble_key = util.assemble(str(public_key.n), str(public_key.e))
client.send(assemble_key)
client_public_key = client.recv(self.BUFSIZ)
client_info_encrypt = client.recv(self.BUFSIZ)
client_info_signature = client.recv(self.BUFSIZ)
n, e = util.disassemble(client_public_key)
client_key = rsa.PublicKey(int(n), int(e))
rsa.verify(client_info_encrypt, client_info_signature, client_key)
client_info = rsa.decrypt(client_info_encrypt, private_key)
client_ID, KDCID, timestamp, reverse, client_decrypt = util.disassemble(client_info)
except Exception, e:
print '[!!!]ERROR :', e
self.error_log('KC addTo decrypt', e)
client.close()
return
def generate_session_ticket(self, encrypt_client_info):
client_info = self.KDC_decrypt(encrypt_client_info)
client_id, server_id, KDCID, timestamp = util.disassemble(client_info)
try:
session_key = self.get_session_key()
client_key = self.get_master_key(int(client_id))
client_k = des(client_key, CBC, '\0\0\0\0\0\0\0\0', pad=None, padmode=PAD_PKCS5)
server_key = self.get_master_key(int(server_id))
server_k = des(server_key, CBC, '\0\0\0\0\0\0\0\0', pad=None, padmode=PAD_PKCS5)
except Exception, e:
print '[!!!]FATAL: ', e
self.error_log('AS generate_session_ticket', e)
return
import time
from pyDes import *
_KDCAddr = "172.18.187.103"
_KCPORT = 3210
BUFSIZ = 1024
(pub, pri) = rsa.newkeys(1024)
ADDR = (_KDCAddr, _KCPORT)
sock = socket(AF_INET, SOCK_STREAM)
sock.connect(ADDR)
sock.send("000")
assemble_key = sock.recv(BUFSIZ)
n, e = util.disassemble(str(assemble_key))
public_key = rsa.PublicKey(int(n), int(e))
assemble_key = util.assemble(str(pub.n), str(pub.e))
sock.send(assemble_key)
message = "abcdefgh"
timestamp = str(int(time.time()))
info = util.assemble("2222", "10385011", timestamp, 1, message)
crypto = rsa.encrypt(info, public_key)
sock.send(crypto)
time.sleep(0.1)
si = rsa.sign(crypto, pri, "SHA-1")
sock.send(si)
des_key = des(message, CBC, "\0\0\0\0\0\0\0\0", pad=None, padmode=PAD_PKCS5)
