Yes, this does sound like a very interesting, and useful idea. One problem
with using "the Internet" for truly anonymous communications is that everybody
has an IP address. We may try to hide it, by means of VPN's, or TOR, or both,
but such communication is still a bit risky. Have a big-enough opponent, say
the NSA or GCHQ, and somebody may trace it.
Imagine a person with a computer on a canonical hill, with an hyper-wideband
SDR radio, spreading out over perhaps 100 MHz in bandwidth. (unused UHF
station bands? Military frequency allocations?) I'm thinking of a transmitter
of 10-100 watts, which when spread over 100 MHz, is not particularly loud.
Conceivably, depending on his transmit footprint, 1 million potential
listener-computers can hear his signal, also by SDR. He receives data,
presumably through VPN or TOR, etc, by means of a packet which is
doubly-encrypted: The operator decrypts by using his private key, revealing a
still-encrypted packet that he then transmits by ultra-broadband, using a
secret provided by the decrypted packet.. Anyone who can 'hear' his signal,
and who knows the encoding secret, can decrypt the data, but it can only be
further decrypted by some further key. So, nobody knows who actually was the
intended recipient.
This amounts to anonymizing "the last 10 miles", making it essentially
impossible to learn who is actually receiving this information.
This process could be reversed, with possibly a different person's setup
'listening' to a similar ultra-wideband signal, with a code provided by an
encrypted packet. If the receiver hears something, it could be sent by
prearrangement to a VPN or TOR, or perhaps re-transmitted to a different
ultra-wideband facility.
It should be possible to 'listen' for a large number of simultaneous
transmissions, at one site, since each will be encrypted by a different
'secret' transmission encoding.
It may not be obvious, but it will probably be necessary to charge for these
services, even if the providers would want to do so for free. Remember "denial
of service attacks"? If this were provided as a fairly well-known service,
chances are good that somebody would want to gum up the system with overloaded,
useless requests for transmissions or receptions. Charging for this system, at
least when the service is heavily occupied, would ensure that users would
continue to have access to it, or at least the operator is getting rich, or
both.
Jim Bell
On Thursday, January 10, 2019, 7:45:39 PM PST, grarpamp
<[email protected]> wrote:
On 12/23/18, grarpamp <[email protected]> wrote:
>> Probably also coming soon, very high PGs wherein the codes, bandwidth and
>> frequencies quickly hop according to a shared secret between the drone
>> and
>> its controller. This combination is being explored for possible Next
>> Generation military comms.
>
> It is said that this is already in public knowledge and operation
> within SDR community.
>
> Though instead of the conventional "bandwidth and frequencies",
> all the observer sees on their spectrum is random noise, let's say
> across entire spectral ranges... from start freq to end freq of entire
> frequency range of ATSC / WiFi / Cellular / FM / Etc allocation
> space... more generally, across entire start to end of whatever
> capability range of the tx / rx hardware in use. And where a
> pre shared or negotiated key is used to impart or mask
> data into, and out of, the noise. It's not even that these may
> have, or be, waveform carriers, as the noise may be spark
> gaps driven, impulse / transform function generators, etc.
>
> And the difficulty in triangulating such noise,
> ie: how exactly does one lock onto random energy,
> the galactic radiation problem, from everywhere
> and nowhere.
>
> Post links to your favorite papers on these topics.
https://en.wikipedia.org/wiki/Tracking_and_Data_Relay_Satellite_System
https://en.wikipedia.org/wiki/Lacrosse_(satellite)
https://en.wikipedia.org/wiki/Future_Imagery_Architecture
https://en.wikipedia.org/wiki/USA-224
https://en.wikipedia.org/wiki/2012_National_Reconnaissance_Office_space_telescope_donation_to_NASA
https://en.wikipedia.org/wiki/Space-based_radar
https://www.youtube.com/watch?v=_Ndr2EYkhA8
https://www.youtube.com/watch?v=MViVyocQhVw
https://www.youtube.com/watch?v=Zf53Pg2AkdY
Radar Love... ;)
