When using the one-time pad with the key k= 0', we have Enck(m) = kom = m and the message is sent in the clear! It has therefore been suggested to modify the one-time pad by only encrypting with k # Ol (i.e., to have Gen choose k uniformly from the set of nonzero keys of length l). Is this modified scheme still perfectly secret? Explain. When using the one-time pad with the key k= 0', we have Enck(m) = kom = m and the message is sent in the clear! It has therefore been suggested to modify the one-time pad by only encrypting with k # Ol (i.e., to have Gen choose k uniformly from the set of nonzero keys of length l). Is this modified scheme still perfectly secret? Explain