def run(self):
while self.is_running:
if self.num == 0: # emission
data = str(
raw_input("\n(chat) > ")) # sanitize function needed
# will enter in conflict with ANANSI raw_input ?
if data == "EXIT":
self.is_running = False
print "\n(chat) > BYE"
else:
data = shamirlib.send_message(data, SHAMIR_K, SHAMIR_N,
SHAMIR_MLR, SHAMIR_GFIELD)
for x in data:
for y in x:
self.craftbuffer.put(y)
if self.num == 1: # reception
if len(
self.shamirbuffer
) == self.shamirsize: # if enough bits for a shamir message
re = shamirlib.receive_element(
map(str, self.shamirbuffer), SHAMIR_MLR,
SHAMIR_N) # extract letter_ref, x and y from data
self.shamir_rtable[re[0]][re[1]] = re[
2] # assigning value y to point x for letter letter_ref
if re[0] == self.shamir_lastref: # still the same letter
if len(
self.shamir_rtable[re[0]]
) > SHAMIR_K: # do we have enough to try to reconstruct the original data ?
temp = shamirlib.reconstruction(rtable[re[0]])
tvalue = shamirlib.modulo_fractions(
temp[0], temp[1], SHAMIR_GFIELD)
if tvalue == self.shamir_endingchar: # this is the end, my only friend, the end
msg = [
x for x in self.shamirmessage
if x != self.shamir_endingchar
] # there should be no endingchar in shamirmessage, paranoid much ?
if len(msg) > 0:
print "\nMSG : " + shamirlib.post_receiving_routine(
msg, SHAMIR_GFIELD,
self.shamir_defaultval)
# re-init (optimisation ?)
self.shamirbuffer = []
self.shamir_rtable = {
k: {}
for k in range(SHAMIR_MLR)
}
self.shamir_lastref = 0
self.shamirmessage = []
self.shamir_tvalue = SHAMIR_GFIELD
else:
if tvalue != self.shamir_tvalue:
self.shamir_tvalue = tvalue # think of a better correction algorithm using previous values/K in N combinations
else: # oh my, we are looking at a new letter !
self.shamirmessage += [
self.shamir_tvalue
] # we add the reconstructed value to the message
self.shamir_rtable[self.shamir_lastref] = {}
self.shamir_tvalue = SHAMIR_GFIELD
self.shamir_lastref = re[0]
self.shamirbuffer = [
] # empty the buffer after using the shamirsize bits
else: # get bits from craftbuffer to shamirbuffer
if not self.craftbuffer.empty():
self.shamirbuffer.append(self.craftbuffer.get())
return
def run(self):
while self.is_running:
if self.num == 0: # emission
data = str(raw_input("\n(chat) > ")) # sanitize function needed
# will enter in conflict with ANANSI raw_input ?
if data == "EXIT":
self.is_running = False
print "\n(chat) > BYE"
else:
data = shamirlib.send_message(data,
SHAMIR_K,
SHAMIR_N,
SHAMIR_MLR,
SHAMIR_GFIELD)
for x in data:
for y in x:
self.craftbuffer.put(y)
if self.num == 1: # reception
if len(self.shamirbuffer) == self.shamirsize: # if enough bits for a shamir message
re = shamirlib.receive_element(map(str,self.shamirbuffer),SHAMIR_MLR,SHAMIR_N) # extract letter_ref, x and y from data
self.shamir_rtable[re[0]][re[1]] = re[2] # assigning value y to point x for letter letter_ref
if re[0] == self.shamir_lastref: # still the same letter
if len(self.shamir_rtable[re[0]])>SHAMIR_K: # do we have enough to try to reconstruct the original data ?
temp = shamirlib.reconstruction(rtable[re[0]])
tvalue = shamirlib.modulo_fractions(temp[0],temp[1],SHAMIR_GFIELD)
if tvalue == self.shamir_endingchar: # this is the end, my only friend, the end
msg = [x for x in self.shamirmessage if x != self.shamir_endingchar] # there should be no endingchar in shamirmessage, paranoid much ?
if len(msg)>0:
print "\nMSG : "+shamirlib.post_receiving_routine(msg,SHAMIR_GFIELD,self.shamir_defaultval)
# re-init (optimisation ?)
self.shamirbuffer = []
self.shamir_rtable = {k:{} for k in range(SHAMIR_MLR)}
self.shamir_lastref = 0
self.shamirmessage = []
self.shamir_tvalue = SHAMIR_GFIELD
else:
if tvalue != self.shamir_tvalue:
self.shamir_tvalue = tvalue # think of a better correction algorithm using previous values/K in N combinations
else: # oh my, we are looking at a new letter !
self.shamirmessage += [self.shamir_tvalue] # we add the reconstructed value to the message
self.shamir_rtable[self.shamir_lastref] = {}
self.shamir_tvalue = SHAMIR_GFIELD
self.shamir_lastref = re[0]
self.shamirbuffer = [] # empty the buffer after using the shamirsize bits
else: # get bits from craftbuffer to shamirbuffer
if not self.craftbuffer.empty():
self.shamirbuffer.append(self.craftbuffer.get())
return
def run(self):
while self.is_running:
if self.num == 0: # emission
filepath = os.path.join(
os.path.dirname(
os.path.abspath(inspect.getfile(
inspect.currentframe()))), "files", SRC_FILEPATH,
self.filename)
with open(filepath) as f:
data = f.read()
f.close()
bdata = list()
if SHAMIR_ON:
bdata = shamirlib.send_message(data, SHAMIR_K, SHAMIR_N,
SHAMIR_MAX_LETTER_REF,
SHAMIR_GFIELD)
else:
bdata = [list(bin(ord(t))[2:].zfill(8)) for t in data]
for x in data:
for y in x:
self.craftbuffer.put(y)
if self.num == 1: # reception
filepath = os.path.join(
os.path.dirname(
os.path.abspath(inspect.getfile(
inspect.currentframe()))), "files", DST_FILEPATH,
self.filename)
newdata = ""
if SHAMIR_ON:
if len(
self.shamirbuffer
) == self.shamirsize: # if enough bits for a shamir message
re = shamirlib.receive_element(
map(str, self.shamirbuffer), SHAMIR_MLR,
SHAMIR_N) # extract letter_ref, x and y from data
self.shamir_rtable[re[0]][re[1]] = re[
2] # assigning value y to point x for letter letter_ref
if re[0] == self.shamir_lastref: # still the same letter
if len(
self.shamir_rtable[re[0]]
) > SHAMIR_K: # do we have enough to try to reconstruct the original data ?
temp = shamirlib.reconstruction(rtable[re[0]])
tvalue = shamirlib.modulo_fractions(
temp[0], temp[1], SHAMIR_GFIELD)
if tvalue == self.shamir_endingchar: # this is the end, my only friend, the end
msg = [
x for x in self.shamirmessage
if x != self.shamir_endingchar
] # there should be no endingchar in shamirmessage, paranoid much ?
if len(msg) > 0:
newdata = shamirlib.post_receiving_routine(
msg, SHAMIR_GFIELD,
self.shamir_defaultval)
# re-init (optimisation ?)
self.shamirbuffer = []
self.shamir_rtable = {
k: {}
for k in range(SHAMIR_MLR)
}
self.shamir_lastref = 0
self.shamirmessage = []
self.shamir_tvalue = SHAMIR_GFIELD
else:
if tvalue != self.shamir_tvalue:
self.shamir_tvalue = tvalue # think of a better correction algorithm using previous values/K in N combinations
else: # oh my, we are looking at a new letter !
self.shamirmessage += [
self.shamir_tvalue
] # we add the reconstructed value to the message
self.shamir_rtable[self.shamir_lastref] = {}
self.shamir_tvalue = SHAMIR_GFIELD
self.shamir_lastref = re[0]
self.shamirbuffer = [
] # empty the buffer after using the shamirsize bits
else: # get bits from craftbuffer to shamirbuffer
if not self.craftbuffer.empty():
self.shamirbuffer.append(self.craftbuffer.get())
else:
while not self.craftbuffer.empty():
tdata = ""
tdata += str(self.craftbuffer.get())
tdata = tdata + '0' * (8 - (len(newdata) % 8))
for k in range(len(tdata) / 8):
newdata += chr(int(tdata[k * 8:(k + 1) * 8], 2))
with open(filepath, 'w') as f:
f.write(newdata)
f.close()
return
def run(self):
while self.is_running:
if self.num == 0: # emission
filepath = os.path.join(os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe()))),"files",SRC_FILEPATH,self.filename)
with open(filepath) as f:
data = f.read()
f.close()
bdata = list()
if SHAMIR_ON:
bdata = shamirlib.send_message(data,SHAMIR_K,SHAMIR_N,SHAMIR_MAX_LETTER_REF,SHAMIR_GFIELD)
else:
bdata = [list(bin(ord(t))[2:].zfill(8)) for t in data]
for x in data:
for y in x:
self.craftbuffer.put(y)
if self.num == 1: # reception
filepath = os.path.join(os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe()))),"files",DST_FILEPATH,self.filename)
newdata = ""
if SHAMIR_ON:
if len(self.shamirbuffer) == self.shamirsize: # if enough bits for a shamir message
re = shamirlib.receive_element(map(str,self.shamirbuffer),SHAMIR_MLR,SHAMIR_N) # extract letter_ref, x and y from data
self.shamir_rtable[re[0]][re[1]] = re[2] # assigning value y to point x for letter letter_ref
if re[0] == self.shamir_lastref: # still the same letter
if len(self.shamir_rtable[re[0]])>SHAMIR_K: # do we have enough to try to reconstruct the original data ?
temp = shamirlib.reconstruction(rtable[re[0]])
tvalue = shamirlib.modulo_fractions(temp[0],temp[1],SHAMIR_GFIELD)
if tvalue == self.shamir_endingchar: # this is the end, my only friend, the end
msg = [x for x in self.shamirmessage if x != self.shamir_endingchar] # there should be no endingchar in shamirmessage, paranoid much ?
if len(msg)>0:
newdata = shamirlib.post_receiving_routine(msg,SHAMIR_GFIELD,self.shamir_defaultval)
# re-init (optimisation ?)
self.shamirbuffer = []
self.shamir_rtable = {k:{} for k in range(SHAMIR_MLR)}
self.shamir_lastref = 0
self.shamirmessage = []
self.shamir_tvalue = SHAMIR_GFIELD
else:
if tvalue != self.shamir_tvalue:
self.shamir_tvalue = tvalue # think of a better correction algorithm using previous values/K in N combinations
else: # oh my, we are looking at a new letter !
self.shamirmessage += [self.shamir_tvalue] # we add the reconstructed value to the message
self.shamir_rtable[self.shamir_lastref] = {}
self.shamir_tvalue = SHAMIR_GFIELD
self.shamir_lastref = re[0]
self.shamirbuffer = [] # empty the buffer after using the shamirsize bits
else: # get bits from craftbuffer to shamirbuffer
if not self.craftbuffer.empty():
self.shamirbuffer.append(self.craftbuffer.get())
else:
while not self.craftbuffer.empty():
tdata = ""
tdata += str(self.craftbuffer.get())
tdata = tdata+'0'*(8-(len(newdata)%8))
for k in range(len(tdata)/8):
newdata += chr(int(tdata[k*8:(k+1)*8],2))
with open(filepath,'w') as f:
f.write(newdata)
f.close()
return
