def question_b():
key_1 = (b'11100010'
b'11110110'
b'11011110'
b'00110000'
b'00111010'
b'00001000'
b'01100010'
b'11011100')
key_2 = (b'01100010'
b'11110110'
b'11011110'
b'00110000'
b'00111010'
b'00001000'
b'01100010'
b'11011100')
plain_text = (b'01101000'
b'10000101'
b'00101111'
b'01111010'
b'00010011'
b'01110110'
b'11101011'
b'10100100')
crypto_1 = MyDES.encrypt(plain_text, key_1)
crypto_2 = MyDES.encrypt(plain_text, key_2)
print_encrypt(plain_text, key_1, crypto_1)
print_encrypt(plain_text, key_2, crypto_2)
print_diff(crypto_1, crypto_2)
def question_a():
plain_text_1 = b"0" * 64
plain_text_2 = b"1" + b"0" * 63
key = b"00000010" b"10010110" b"01001000" b"11000100" b"00111000" b"00110000" b"00111000" b"01100100"
crypto_1 = MyDES.encrypt(plain_text_1, key)
crypto_2 = MyDES.encrypt(plain_text_2, key)
print_encrypt(plain_text_1, key, crypto_1)
print_encrypt(plain_text_2, key, crypto_2)
print_diff(crypto_1, crypto_2)
def question_b():
key_1 = b"11100010" b"11110110" b"11011110" b"00110000" b"00111010" b"00001000" b"01100010" b"11011100"
key_2 = b"01100010" b"11110110" b"11011110" b"00110000" b"00111010" b"00001000" b"01100010" b"11011100"
plain_text = b"01101000" b"10000101" b"00101111" b"01111010" b"00010011" b"01110110" b"11101011" b"10100100"
crypto_1 = MyDES.encrypt(plain_text, key_1)
crypto_2 = MyDES.encrypt(plain_text, key_2)
print_encrypt(plain_text, key_1, crypto_1)
print_encrypt(plain_text, key_2, crypto_2)
print_diff(crypto_1, crypto_2)
def test_usage(self):
plain_text_1 = b"0" * 64
plain_text_2 = b"1" + b"0" * 63
key = b"00000010" b"10010110" b"01001000" b"11000100" b"00111000" b"00110000" b"00111000" b"01100100"
# plain_text_1
crypto_1 = MyDES.encrypt(plain_text_1, key)
self.assertEqual(MyDES.decrypt(crypto_1, key), plain_text_1)
# plain_text_2
crypto_2 = MyDES.encrypt(plain_text_2, key)
self.assertEqual(MyDES.decrypt(crypto_2, key), plain_text_2)
self.assertNotEqual(crypto_1, crypto_2)
def question_a():
plain_text_1 = b'0' * 64
plain_text_2 = b'1' + b'0' * 63
key = (b'00000010'
b'10010110'
b'01001000'
b'11000100'
b'00111000'
b'00110000'
b'00111000'
b'01100100')
crypto_1 = MyDES.encrypt(plain_text_1, key)
crypto_2 = MyDES.encrypt(plain_text_2, key)
print_encrypt(plain_text_1, key, crypto_1)
print_encrypt(plain_text_2, key, crypto_2)
print_diff(crypto_1, crypto_2)
def test_usage(self):
plain_text_1 = b'0' * 64
plain_text_2 = b'1' + b'0' * 63
key = (b'00000010'
b'10010110'
b'01001000'
b'11000100'
b'00111000'
b'00110000'
b'00111000'
b'01100100')
# plain_text_1
crypto_1 = MyDES.encrypt(plain_text_1, key)
self.assertEqual(MyDES.decrypt(crypto_1, key), plain_text_1)
# plain_text_2
crypto_2 = MyDES.encrypt(plain_text_2, key)
self.assertEqual(MyDES.decrypt(crypto_2, key), plain_text_2)
self.assertNotEqual(crypto_1, crypto_2)