Generate a private (and a corresponding public) key

		:return: None

def generate_private_key(self, key_size=2048, public_exponent=65537):
		""" Generate a private (and a corresponding public) key

		:return: None
		"""
		self.__set_private_key(
			rsa.generate_private_key(
				public_exponent=public_exponent, key_size=key_size, backend=default_backend()
			)
		)