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Update 'Zadanie3'

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Klaudia Kandulska 2018-06-25 17:53:53 +00:00
parent 5ddd10b5e2
commit 65909526af
1 changed files with 25 additions and 14 deletions
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Zadanie3
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@ -1,9 +1,12 @@
def toBinary(string): from sys import argv
return "".join([format(ord(char),'#010b')[2:] for char in string])
def toString(binaryString): def toString(binaryString):
return "".join([chr(int(binaryString[i:i+8],2)) for i in range(0,len(binaryString),8)]) return "".join([chr(int(binaryString[i:i+8],2)) for i in range(0,len(binaryString),8)])
def toBinary(string):
return "".join([format(ord(char),'#010b')[2:] for char in string])
#XOR #XOR
def xor(a, b): def xor(a, b):
@ -52,16 +55,19 @@ def divide(message, poly16):
def decode(message_final,poly16): def decode(message_final,poly16):
l_poly16 = len(poly16) l_poly16 = len(poly16)
appended_message2 = message_final appended_message2 = message_final
remainder = divide(appended_message2, poly16) remainder = divide(appended_message2, poly16)
#sprawdzenie kazdego bitu #Poprawione sprawdzanie
suma = 0
for i in range(0, len(remainder)): for i in range(0, len(remainder)):
if '1' not in remainder: if '1' in remainder:
suma = suma+1
if suma == 0:
print("true ") print("true ")
elif '1' in remainder: elif suma > 0:
print("false ") print("false")
def encode(message, poly16): def encode(message, poly16):
@ -70,13 +76,13 @@ def encode(message, poly16):
l_poly16 = len(poly16) l_poly16 = len(poly16)
# Dodaj n-1 "0" do wiadomosci # Dodajemy n-1 "0" do wiadomosci
appended_message = aa + '0'*(l_poly16-1) appended_message = aa + '0'*(l_poly16-1)
remainder = divide(appended_message, poly16) remainder = divide(appended_message, poly16)
message_final = aa + remainder message_final = aa + remainder
print("binarnie calosc : ", message_final) print("binarnie calosc : ", message_final)
#konwersja z ascii do binarnego #konwersja z binarnego do ascii
ab=toString(message_final) ab=toString(message_final)
print("w ascii : ", ab) print("w ascii : ", ab)
print("sprawdzenie : ") print("sprawdzenie : ")
@ -85,8 +91,13 @@ def encode(message, poly16):
poly16 = "10001000000100001" poly16 = "10001000000100001"
print("podaj wiadomosc do zakodowania : ")
message = str(raw_input())
encode(message, poly16)
def main():
global message
message = list(argv[1])
flag = argv[2]
if flag == 'encode':
encode(message, poly16)
if __name__ == '__main__':
main()