17. A non-transitory storage device storing instructions which when executed by a processor improves security of an electronic messaging system, the instructions comprising: First instructions for receiving a message input; Second instructions for encoding said message input to provide ciphertext; Third instructions for further transforming said ciphertext to disguise the ciphertext and make it appear to be similar to or indistinguishable from, at least by certain automated processes, from a natural language short message; and Fourth instructions for transmitting said further-transformed ciphertext as a short message over an electronic network using a short-messaging protocol.
19. The device of claim 17 wherein the third instructions use a dictionary that includes alternate spellings of the same natural language words.