from crypto_func import def main generate_prime_numbe 128 Miller-Rabin

  • Anonymous
  • Python
  • 24 Oct 2019 
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from crypto_func import *



e = 2



def main():

	p = generate_prime_number(128) # Miller-Rabin

	q = generate_prime_number(128) # Miller-Rabin

	

	# encrypt

	n = p * q

	print("Module[n]:\n\t{}".format(n))



	m = id_generator()

	print("Message:\n\t{}".format(m))



	c = pow(int_from_bytes(m.encode()), e, n)

	print("Encrypt[message]:\n\t{}".format(hex(c)))



	# decrypt

	y_p, y_q, _ = euclidean(p, q)

	m_p = isqrt(c)[0] % q

	m_q = isqrt(c)[0] % p



	r = int(round((y_p * p * m_q + y_q * q * m_p) % n))

	r_ = n - r

	s = int(round((y_p * p * m_q - y_q * q * m_p) % n))

	s_ = n - s



	printable_chars = bytes(string.printable, 'ascii')

	if all(char in printable_chars for char in int_to_bytes(r)):

		m_dec = int_to_bytes(r)

	if all(char in printable_chars for char in int_to_bytes(r_)):

		m_dec = int_to_bytes(r_)

	if all(char in printable_chars for char in int_to_bytes(s)):

		m_dec = int_to_bytes(s)

	if all(char in printable_chars for char in int_to_bytes(s_)):

		m_dec = int_to_bytes(s_)

	print("Decrypt[message]:\n\t{}".format(m_dec.decode()))



if __name__ in '__main__':

	main()
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