Hello Rob,
yesterday writing my posting i have had a discomforting feeling that i
miss an important info and then you told it to me as the scientific
term: 'Steganography', it was for me a bit like taking risk for learning
something new.
Now i can rename 'Semantic Encryption' to 'Ontology based Steganography'.
The two most important things for me are a.) not attracting attention
with encrypted internet messages which can be detected and assigned to a
person very easily, b.) constructing an ontologies-concept for automated
process to produce from a text-message easily another logical text with
a complete different theme to hide the origin message.
I don't want to discuss or try to clarify the other details (but i would
recall 'trivial' in my first posting) now here in this early phase, but
with your hints i have definitly a better sight for building a
knowledge-base and a much better 'feeling' now and this was exactly the
aim of my posting, thank you very much, if you get any further ideas to
this theme, i am very interested, again thanks, Baran.
p.s.: How i come to this? I saw in a german site the term
"semantische Chiffrierung", can also be used in a political context,
"Semantic Encryption" was not my idea...
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On Tue, 29 Jul 2014 10:33:09 +0200, Rob Vesse <[email protected]> wrote:
Baran
Comments inline:
On 28/07/2014 17:39, "baran_H" <[email protected]> wrote:
Hello,
i have been always gready to find an interesting use for Semantic Web.
Now
i want to present you something where i don't know exactly how original
it
is:
You have an app to tip a very secret message in the dataset of a given
ontology, 'air force' for example. The app asks you after a 'controlled
input', to which ontology should i transform it? You choose football for
example. The app suggests a text about football, you read and accept it
or
you change the text how you like it without changing special colored
expressions. Then you send your 'football text' to your friend. No
observation of the world can check that it is an encrypted message, but
your friend can read the secret message when he/she has the same app.
You've basically just described a RDF based steganography technique
(http://en.wikipedia.org/wiki/Steganography) I.e. the art or practise of
concealing a message within another message.
One problem with steganography is that anyone with the app can read the
message because unlike cryptography there isn't a shared key involved.
So
if your malicious eavesdropper has the app then they too can read the
original message.
For the case that both computers are already infected: Both have a
second
computer inline with a selfcontrolled embedded connection.
I'm not a security expert but that above statement doesn't fill me with
confidence. If a machine is compromised then it is compromised, even if
the malicious eavesdropper can't read the original message they can
likely
get a copy of the app at which point they can decode the message anyway.
This is basically mapping ontologies to each other and the practical
programming of this staff is finally trivial, would i say, i thought a
lot
about it, also for the case of a second comp in line...
True, though I would say trivial typically means insecure. There is a
reason information security is hard and even the experts can get it
horribly wrong e.g. OpenSSL and Heartbleed
Rob
Now you can ask, what Jena have to do with this: Speaking from
experience:
This is the best place in the web to put such a posting, would i say.
And
i have a somewhat dubious hint, that such concepts are practiced
already.
Everything is already thought anyway, but i am very curious about
comments
of interested or better informed users...
thanks, baran.
