Given that the few recent examples have been simple ciphers solvable with today's technology easily would these not be closer the Empyrean age's plaintext than a coded message? If our ability to traverse the stars and our encryption technology continued increasing at the same pace, by the time we had jump gates encryption would be ridiculous and baffling, even ineffable, to a present day person. Is even using something like AES not somewhat analogous to claiming to use steam power to fly your spaceships?
Obviously we need to decide what real world standard of encryption represents the average in EVE. If we call a simple substitution cipher "uncrackable" as recently happened on the IGS does that make DES Jovian advanced technology beyond the average capsuleers reach? If we decide that AES is the most basic does this mean that anyone with a sub-processor can read it as plaintext?
Sorry if this is stupidly pedantic, just been wondering about it.