def __init__(self, ports, key=None, debug=False):
"""Initializes the sender object with a list of sockets containing
one socket for each port in the ports list.
Args:
ports: A list of integer port number values for the sender.
key: A base64 format string key to be used for MAC tag generation.
Default value = None.
debug: A boolean value indicating debug mode.
Raises:
TypeError: Error when key is not a string value, or when ports is not
a list of integers.
"""
try:
if type(ports) != list:
raise TypeError("invalid ports: list expected")
elif key != None and type(key) != str:
raise TypeError("invalid key: str expected")
self.host, self.ports = mysocket.gethostname(), ports
self.sock = []
self.key = key
self.debug = debug
for port in ports:
self.sock.append(mysocket())
self.sock[-1].bind((self.host, port))
print "Sender socket (%s, %d) initiated" % (self.host, port)
except:
if debug == True:
raise
else:
secureFail()
sys.exit()
def __init__(self, ports, key=None, debug=False):
"""Initializes the receiver object with a list of sockets containing
one socket for each port in the ports list.
Args:
ports: A list of integer port number values for the receiver.
key: A base64 format string key to be used for MAC tag generation.
Default value = None.
debug: A boolean value indicating debug mode.
Raises:
TypeError: Error when key is not a string value, or when ports is not
a list of integers.
"""
try:
if type(ports) != list:
raise TypeError("invalid ports: list expected")
elif key != None and type(key) != str:
raise TypeError("invalid key: str expected")
self.host, self.ports = mysocket.gethostname(), ports
self.sock = []
self.key = key
self.debug = debug
for port in ports:
self.sock.append(mysocket())
self.sock[-1].bind((self.host, port))
print "Receiver socket (%s, %d) initiated" % (self.host, port)
except:
if debug == True:
raise
else:
secureFail()
sys.exit()
def __init__(self, port, debug=False):
"""Initializes the node object with a socket object using the port
number specified by the argument port.
Args:
port: An integer port number for the node.
debug: A boolean value indicating debug mode.
Raises:
TypeError: Error when port is not an integer.
"""
try:
if type(port) not in [int, long]:
raise TypeError("invalid port: int or long expected")
self.host, self.port = mysocket.gethostname(), port
self.sock = mysocket()
self.sock.bind((self.host, self.port))
self.share = None
self.debug = debug
print "Node (%s, %d) initiated" % (self.host, self.port)
except:
if debug == True:
raise
else:
secureFail()
sys.exit()
try:
fp = open("sender.txt", "r")
dictStr = fp.read()
fp.close()
senderDict = message.strToList(dictStr)
ports = senderDict["ports"]
msg = senderDict["msg"]
n = senderDict["n"]
k = senderDict["k"]
prime = senderDict["prime"]
key = senderDict["key"]
mode = senderDict["mode"]
nodePorts = senderDict["nodes"]
addr = mysocket.gethostname()
nodes = [(addr, portNum) for portNum in nodePorts]
s = sender(ports, key, args.debug)
shares, genTime = s.sendShares(msg, n, k, prime, nodes, mode)
print "Time taken to generate shares:", genTime
print "-" * 50
except SystemExit:
pass
except:
if args.debug == True:
raise
else:
secureFail()
try:
fp = open("receiver.txt", "r")
dictStr = fp.read()
fp.close()
recvrDict = message.strToList(dictStr)
ports = recvrDict['ports']
t = recvrDict['t']
k = recvrDict['k']
prime = recvrDict['prime']
key = recvrDict['key']
mode = recvrDict['mode']
buf = recvrDict['buffer']
nodePorts = recvrDict['nodes']
addr = mysocket.gethostname()
nodes = [(addr, portNum) for portNum in nodePorts]
r = receiver(ports, key, args.debug)
secret, faultyNodes, reconTime = r.reconstructSecret(
nodes, buf, k, t, prime, mode)
if len(faultyNodes) == 0:
faultyNodes = None
endTime = time()
print "-" * 50
print "Reconstructed message:", secret
print "Faulty nodes:", faultyNodes
print "-" * 50
print "Time taken to reconstruct secret :", reconTime
print "-" * 50