Create the 16 subkeys K[1] to K[16] from the given key

def __create_sub_keys(self):
		"""Create the 16 subkeys K[1] to K[16] from the given key"""
		key = self.__permutate(des.__pc1, self.__String_to_BitList(self.getKey()))
		i = 0
		# Split into Left and Right sections
		self.L = key[:28]
		self.R = key[28:]
		while i < 16:
			j = 0
			# Perform circular left shifts
			while j < des.__left_rotations[i]:
				self.L.append(self.L[0])
				del self.L[0]

				self.R.append(self.R[0])
				del self.R[0]

				j += 1

			# Create one of the 16 subkeys through pc2 permutation
			self.Kn[i] = self.__permutate(des.__pc2, self.L + self.R)

			i += 1