I don’t see what your transformations are buying you. You don’t have to label an encrypted message with its key at all. The intended recipient knows their own key. So your proposal is equivalent to telling your “public” key only to people who are supposed to send you messages.
I don’t see what your transformations are buying you. You don’t have to label an encrypted message with its key at all. The intended recipient knows their own key. So your proposal is equivalent to telling your “public” key only to people who are supposed to send you messages.