(15) It turns out that the different algorithms use different length encryption keys. Suppose we pick the algorithm based on the key length: If the key is 128 bits, use DES-128. If it is 96 bits, use Diffie-Hellman. If it is 192 bits, use RSA. Assume that the EncKex class has a length0 method that returns the number of bits in the key. 5. Name the (creation) pattern, and implement this capability, include UML diagram (15) It turns out that the different algorithms use different length encryption keys. Suppose we pick the algorithm based on the key length: If the key is 128 bits, use DES-128. If it is 96 bits, use Diffie-Hellman. If it is 192 bits, use RSA. Assume that the EncKex class has a length0 method that returns the number of bits in the key. 5. Name the (creation) pattern, and implement this capability, include UML diagram