I guess a handwavy worked version of the one-time-pad analogy would be 1) a shared random pad that you can't read without destroying it, 2) some data to send th

I guess a handwavy worked version of the one-time-pad analogy would be 1) a shared random pad that you can't read without destroying it, 2) some data to send that you can't read either and 3) a destructive XOR operation that destroys both inputs Alice runs the XOR operation (destroying the data and her copy of the pad), send the result to Bob, who runs it against his copy of the pad, producing the original data.