def decrypt(cipher, key_text): keys = generate_keys(key_text) text_bits = [] ciphertext = '' for i in cipher: # conversion of hex-decimal form to binary form ciphertext += hex_to_bin(i) for i in ciphertext: text_bits.append(int(i)) text_bits = add_pads_if_necessary(text_bits) keys.reverse() bin_mess = '' for i in range(0, len(text_bits), 64): bin_mess += DES(text_bits, i, (i + 64), keys) i = 0 text_mess = '' while i < len(bin_mess): text_mess += bin_to_text(bin_mess[i:i + 8]) i = i + 8 return text_mess.rstrip('\x00')
def decrypt(cipher, key_text): keys = generate_keys(key_text) text_bits = [] ciphertext = '' for i in cipher: # conversion of hex-decimal form to binary form ciphertext += hex_to_bin(i) for i in ciphertext: text_bits.append(int(i)) text_bits = add_pads_if_necessary(text_bits) keys.reverse() bin_mess = '' for i in range(0, len(text_bits), 64): bin_mess += DES(text_bits, i, (i+64), keys) i = 0 text_mess = '' while i < len(bin_mess): text_mess += bin_to_text(bin_mess[i:i+8]) i = i+8 return text_mess.rstrip('\x00')
def decrypt(cipher): #cipher hexadecimal dan key 8 character key_text = "kij12345" keys = generate_keys(key_text) # key dirubah ke biner text_bits = [] ciphertext = '' ciphertemp = [] for i in cipher: # conversion of hex-decimal form to binary form ciphertext += hex_to_bin(i) ciphertemp = str(ciphertext) for i in ciphertemp: text_bits.append(i) xx = 0 text_temp = [] for xx in range(0,len(text_bits)/64): ho = len(text_bits)/64 temp = [] aa = 0 while aa < 64: temp += text_bits.pop(0) aa = aa + 1 temp_new = [] for i in temp: temp_new.append(int(i)) #print "keys sebelum reverse->",keys if xx == 0: keys.reverse() bin_mess = '' for i in range(0, len(temp_new), 64): bin_mess += DES(temp_new, i, (i+64), keys) i = 0 text_mess = '' while i < len(bin_mess): text_mess += bin_to_text(bin_mess[i:i+8]) i = i+8 # print "ini text mess bawah->", text_mess final_gan = [] final_gan.append(text_mess.rstrip('\x1c')) #print "ini hasil iterasi ke ", xx+1, final_gan text_temp.append(text_mess) final_temp = ''.join(text_temp) return final_temp.rstrip('\x00') for i in temp: # conversion of hex-decimal form to binary form ciphertext += hex_to_bin(i) for i in ciphertext: text_bits.append(int(i)) text_bits = add_pads_if_necessary(text_bits) keys.reverse() bin_mess = '' for i in range(0, len(text_bits), 64): bin_mess += DES(text_bits, i, (i+64), keys) i = 0 text_mess = '' while i < len(bin_mess): text_mess += bin_to_text(bin_mess[i:i+8]) i = i+8 return text_mess.rstrip('\x00')
<<<<<<< HEAD ======= def decrypt(temp, key_text): keys = generate_keys(key_text) >>>>>>> f457486e1e291560a357694f11c3fcc8df033188 def decrypt(cipher, key_text): #cipher hexadecimal dan key 8 character keys = generate_keys(key_text) # key dirubah ke biner text_bits = [] ciphertext = '' <<<<<<< HEAD ciphertemp = [] for i in cipher: # conversion of hex-decimal form to binary form ciphertext += hex_to_bin(i) ciphertemp = str(ciphertext) for i in ciphertemp: text_bits.append(i) xx = 0 text_temp = [] for xx in range(0,len(text_bits)/64): ho = len(text_bits)/64 temp = [] aa = 0 while aa < 64: temp += text_bits.pop(0) aa = aa + 1 temp_new = [] for i in temp: temp_new.append(int(i))