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The Military Communications

US Navy Tests WWII-ERA Messaging Tech: Dropping Bean Bags Onto Ships (popularmechanics.com) 95

Long-time Slashdot reader davidwr writes: In World War II, pilots would air-drop messages onto ships using bean-bags. Just as with sextants a few years ago, the Navy is bringing back old tech, because it works.

Just as during the Doolittle Raid of Tokyo, the purpose is to prevent eavesdropping. You can read more about the modern bean-bag-drop on Military.com or Popular Mechanics. There's a video about the Doolittle Raid hosted at archive.org with bean-bag-drops at 2:39 and 5:19 into the video. I wonder how many high-density SSD drives fit in a standard Navy bean-bag?

"In a future conflict with a tech-savvy opponent, the U.S. military could discover even its most advanced, secure communications penetrated by the enemy," notes Popular Mechanics. "Secure digital messaging, voice communications, video conferencing, and even chats could be intercepted and decrypted for its intelligence value.

"This could give enemy forces an unimaginable advantage, seemingly predicting the moves and actions of the fleets at sea with uncanny accuracy."
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US Navy Tests WWII-ERA Messaging Tech: Dropping Bean Bags Onto Ships

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  • Pneumatic Tube (Score:3, Interesting)

    by Cmdln Daco ( 1183119 ) on Saturday August 17, 2019 @04:37PM (#59097566)

    It's probably time for a revival of pneumatic tube communication [explainthatstuff.com]. The tech is actively in use at drive-through bank tellers. It should be revived for general use.

    • They still had one for US Mail 20 years ago in Portland in the building that Tripwire Software was (is?) in, but it had big warning signs on it not to use it for anything important.

      It was about that long ago that my bank replaced theirs with drive-up ATMs, with a teller only in the lane by the building.

    • by gtall ( 79522 )

      Nah, not high tech enough. It would be better to marry it with talking rodents. You tell the rodent what to say at one end, shove him in the tube and hit go. The guy at the other end receives the rodent and gets a voice mail message. Responding is optional but generally follows the same pattern.

    • I can't wait to see the chaos that ensues when, in the middle of an engagement, boat Y and boat X get their tubes crossed, break each other, and reconnect the tubes wrongly.

      Multi-kilometre reels of pneumatic pipe can reel-in and reel-out, but they're cumbersome. By the time your fleet is in the middle of a decent ocean, the fleet of auxiliary vessels carrying the spools will probably out-mass the fighting ships.

      Of course, no enemy would be so unsporting as to fire at the reel-freighters, sending shrapnel

  • Doesn't the concept of physically dropping a message come with inherant dangers? Such as not being entirely sure the message came frome home base, or that it hadn't been tampered with?

    Admittedly I just read the submission, and not TFA.

    I wonder if acceptance of that sort of compromise comes from experience. You know, it might be better to use instinct to trust accuracy as opposed to assuming validity because the tech would make any other possibility mathmatically "impossible".

    • Re:Yeah but.. (Score:5, Insightful)

      by Aighearach ( 97333 ) on Saturday August 17, 2019 @04:57PM (#59097614)

      If an airplane is able to fly over your ship and drop stuff on it, when you're not even sure if it was your aircraft, you've already been sunk and none of that other stuff matters.

    • Comment removed based on user account deletion
    • Doesn't the concept of physically dropping a message come with inherant dangers? Such as not being entirely sure the message came frome home base, or that it hadn't been tampered with?

      I'd think this sort of thing could be worked around with reasonable confidence of security. Such as an in-person agreement ahead of time that important operational messages to be dropped this way would include some random set of rotating phrases.

      • Modern spy satellites can reliably track every single ship in the ocean given sufficient coverage. You are not hiding your ship from discovery by droping messages. If you are worried about the enemy decoding your messages with quantum computers then use a one time pad for every message. The memory storage requirements are trivial for anything short of high-resolution vidio conferencing.
    • by PPH ( 736903 ) on Saturday August 17, 2019 @06:32PM (#59097792)

      Such as not being entirely sure the message came from home base, or that it hadn't been tampered with?

      I think you've got bigger security problems if you let a compromised aircraft drop something on your deck.

      • I dont disagree, i think you all make great points. I wont lie...

        I guess im fixated on the beanbag itself, and i might be looking at the problem from an angle innappropriate, since encryption helps deal with this problem. Maybe it will somehow be combined...

        My statement had less to do with explicitly how rhe payload got there, and more to do with the payload itself. I guess i see the plane being just part of the solution, and the protocol overall having more physical points of failure.

      • Yeah, so how do you set up that drop? With the previously intercepted communications. And now that the enemy knows this, as soon as that order goes live, we're flying our own plane over that ship and dropping the biggest fucking bomb we can carry.

        Because if you don't clear that drop ahead of time, the allied plane is going to get shot down. And if you clear that drop via intercepted communications, the bean bag might be a big boom.

        So yeah, now we need to send eyes out to check the incoming plane, and hope t

    • Doesn't the concept of physically dropping a message come with inherant dangers? Such as not being entirely sure the message came frome home base, or that it hadn't been tampered with?

      Not to mention the possibility of a drone-in-the-middle attack.

      • That is kind of exactly my point, should a drone, jar jar, or anything else alter the message prior to it being read, its left to humans to make that determination...

        but is that the point? has point to point encryption left us docile? the way I understand it, is with current tech a communication might be intercepted, but even if it could be read and modified, it would be signed differently, leaving the payload not legible (unless the attacker had access to the key)

        my question is if this change actually red

    • All these problems have been solved fairly well with public key encryption. The flaws with that largely come with insecure software doing the algorithms, things like compressing the data before you encrypt it, leaking information about the data through the size of the ciphertext. Reduce access to the cyphertext, by delivering it by sneakernet, and you solve those problems.

      So the data in your beanbag can be cryptographically signed, by a device that is kept, permanently air-gapped, in a multi-key safe in the

    • You need to go back and actually read your manuals on security, encryption and message verification. While most users of encryption are most concerned with the question of stopping unauthorised people from reading the message, exactly the same maths and infrastructure can be used to validate that the message was "signed" by the person/ entity who claims to have encrypted it, and that the message has not been altered since.

      You're far from the first person who didn't realise that strong verification of the o

  • by CaptainDork ( 3678879 ) on Saturday August 17, 2019 @04:56PM (#59097606)

    ... efforts in law firms.

    I'm retired IT from several. For particularly high-dollar cases, parties agreed to snail mail, fax machines, landlines, and personal visits. When an outcome is expected to favour someone with, say, 138 million dollars, the court allowed no digital transmissions until after the case settled.

    • by AHuxley ( 892839 )
      Its like a set of one time pads getting delivered.
      Decades of very trusted workers did that around the world.
      Now its news again?
  • Comment removed based on user account deletion
    • One time pad is a better solution in my mind.

      You are completely missing the point.

      The concern is not the enemy decrypting the messages, but RF transmissions giving away the position of the fleet.

      The navy regularly runs radio-silence drills for days at a time, relying on semaphore flags and signal lamps. But those have limited bandwidth and are ship-to-ship, not aircraft-to-ship.

      • Comment removed based on user account deletion
        • Re: I'm torn (Score:5, Informative)

          by ShanghaiBill ( 739463 ) on Saturday August 17, 2019 @05:57PM (#59097730)

          The summary specifically talks about decryption of communications.

          The summary is wrong.

          TFA at Popular Mechanics is also wrong, and is just an incompetent rewrite of the Military.com article which doesn't mention "decryption".

          Semaphores, signal lamps, and beanbags are NOT about avoiding decryption. They are about avoiding DETECTION.

          They can't be detected, they can't be jammed, and they can't be triangulated.

          • by davidwr ( 791652 )

            Semaphores, signal lamps, and beanbags ... can't be detected, they can't be jammed

            The plane carrying the beanbag can be detected and shot down, "jamming" the communication.

            If I suspect you are somewhere near point A and trying to use a semaphore or signal lap to communicate with someone near point B, and I have enough control of the land, sea, or air beween those areas, I can put up smoke or artificial fog to jam your communications. I may even be able to intercept them if I have enough information and control of the area in between.

      • The navy regularly runs radio-silence drills for days at a time, relying on semaphore flags and signal lamps. But those have limited bandwidth and are ship-to-ship, not aircraft-to-ship.

        And by "signal lamps", when you say "limited bandwidth", you mean some hand-operated devices? It's not like we couldn't squeeze much more bandwidth into the same light flux. Hell, even photophones are ancient stuff.

      • If your fleet is using radar they already know where it is.
    • by sjames ( 1099 )

      It sounds like a last ditch solution that increases the probability of successful communications when all else fails. It won't hurt to have the procedures worked out in advance.

      • Comment removed based on user account deletion
        • Why not? In cases where you know or highly suspect that they have the ability to intercept and decrypt your electronic communications why is this somehow not a better option? Why doesn't this help them send one set of instructions over traditional channels and a different set that are the real ones to check if a protocol or channel has or has not been compromised?
        • by dcw3 ( 649211 )

          Really? Tell us how you plan to intercept a beanbag drop over open water against a USN ship that you likely don't know where it is, and a USN plan that's likely being watched by AWACS and within navy fighter jet protection.

          It's not like it's something they'll use all the time either. It gives them another tool, and having a large toolbox = good.

      • It sounds like a last ditch solution that increases the probability of successful communications when all else fails

        Could I just ask a personal question - is your number of days stuck on a boat because the weather is too bad for helicopter flight more than 100 days, or less?

        To get close enough to be confident of getting a bean bag onto the deck, you're talking about helicopter landing weather quality. In some areas that I've worked, the helicopters can operate on average one day in two or three. So, your p

        • by sjames ( 1099 )

          It is still an increased probability. I never said anything about perfect reliability.

          Of course nothing says they can't make more than one attempt. Splashing a beanbag is nowhere near as bad as crashing a helo into the deck.

    • "So, it has pros and cons. But it feels like a solution chosen by an uninformed person."

      I feel like your analysis was made by a person ill suited to analysis. Your premise that this is a replacement method rather than an additional option in cases where the pros and cons are considered is where you went wrong.

    • by AHuxley ( 892839 )
      The crew having their IoT and media, video clips on the ship with the connected devices will change all that :)
      Their fancy media player is infected in port by a new "friend", a contractor.
      They use it every time on duty due to "boredom", missing the comforts of civilian life.
      The consumer junk is not removed and allowed to keep crew numbers happy on active duty.
      Crew members have habits like "talking" out loud the message that's decoded... as part of the buddy system to ensure quality and security.
      Compre
  • Drop bean bags with one time pads then you can send back via radio. There is the problem of assuring that the drop is from friendly aircraft, but that can be done by sending the ship a 1 MB message encrypted with some random part of the dropped one time pad.

    I assume that ''the enemy'' already knows where the ships are so sending radio does not give much information.

    • Comment removed based on user account deletion
      • by clovis ( 4684 )

        Even so, you have to be prepared for the eventuality that the petabyte of OTP had been comprised by some Greenglass, Rosenberg, Walker, Mak, Pollard, Snowden, Manning, and many others. Every country has a list just as long of people who sellout for whatever reason.

        • Comment removed based on user account deletion
        • There are technical solutions to reduce the number of people with access, like having the codes in a sealed module that only spits them out on the day that code is valid, or that does the decryption only without giving out the code itself. We could have all communications be 1 to 1 between encryption modules (each with its own codes, you have a code just for talking with that module). You send the message to that specific module. If it dissappears/stolen by Russian spy then nobody sends to that module (b
  • by stabiesoft ( 733417 ) on Saturday August 17, 2019 @05:09PM (#59097642) Homepage
    for throttle control back to mechanical. Maybe cars should make note. Real buttons/knobs have advantages for meat sacks.
    • for throttle control back to mechanical.

      Nope. The controls are still electrical, just the switch is mechanical ... and a big array of mechanical switches is actually less reliable than a touchscreen.

      There were several collisions in the Western Pacific, and the Navy was under political pressure to "do something". Rejiggering switches allowed them to do that, rather than addressing the real problem (poor training and procedures). Blaming the UI design was prefered over blaming captains and admirals.

      • by PPH ( 736903 )

        a big array of mechanical switches is actually less reliable than a touchscreen.

        That depends on which OS [wired.com] you use for your touch screen. A single app dividing by zero causing the whole OS to crash? We hadn't lost a carrier to a zero [ytimg.com] since WWII.

        • That depends on which OS [wired.com] you use for your touch screen. A single app dividing by zero causing the whole OS to crash?

          Nope. Didn't happen. The OS did not crash. Bad data was entered into a database. That bad data was sent to an application. That application crashed. That application was supposed to operate the engines.

          WinNT, Linux, neither operating system prevents applications from crashing.

          The article that started this urban legend was retracted for being inaccurate. The developers of the applications software admitted it was their problem not the operating system. Although they do point out everything was in a tes

      • by drolli ( 522659 )

        and a big array of mechanical switches is actually less reliable than a touchscreen.

        Is that so? Did you compare the MTBF numbers of high-end mechanical switches with high-end touch screens?

        • by dcw3 ( 649211 )

          What Drolli said. Take a look at a simple example these days...washing machines. They're less reliable than much older versions. My grandmother and mother had their machines for decades w/o issue. I've personally been thru three machines that are modern, and have been told by the repairmen that they all break frequently. Maybe it's planned obsolescence.

      • by gtall ( 79522 )

        Yes, training would help...as would not confusing touch screens with intuitive controls that won't get misused during an emergency. Guess what, during an emergency, not everyone is calm, cool, and collected and makes totally correct decisions on a touch screen overblown with extra "features".

      • It sounds to me like they "solved the problem" as ordered.
    • Comment removed based on user account deletion
    • by gtall ( 79522 )

      As someone below mentioned, the throttle control is merely human input, not directly implementing the control of the motors.

      Along the same delusional notions of mechanical superiority, la Presidenta Tweetie wants the Navy to replace the catapults on the new aircraft carriers with hydraulics because one has to be an Einstein to understand how to wire up catapults powered by energy from nuclear reactors...with their spare capacity and thus adding miles of hydraulics to those big fat ships. Sheesh, I guess the

      • There are good technical reasons for the new electro-magnetic catapults (lower wear and tear, easier to calibrate for aircraft weight), they just need to complete the troubleshooting and R&D before they deploy them. They should not build another Ford class ship until the first one is fully operational. PS, the min weight limit on the F35 ejection seat is stupid. Have they never heard of a divers weight belt?
  • Comment removed based on user account deletion
  • by goombah99 ( 560566 ) on Saturday August 17, 2019 @05:34PM (#59097688)

    Just don't buy any beanbags from huawei

  • Then one should use a typewritter in order to avoid the message being eavesdropped while been typed, The Russians resumed doing that a few years ago.
    • by davidwr ( 791652 )

      The ball-type typewriters are relatively easy to eavesdrop on.

      I think the every-letter-has-a-hammer type ones can now be eavesdropped on as well.

      However, if you do your typing in a soundproof room you should be okay. If it's an electrical typewriter, run it on a battery in an RFI-hardened room.

      If reading handwriting isn't an issue, just use a pen or pencil, it will be easier. Just make sure nobody and no camera can observe your hand moving as you write.

    • Then one should use a typewritter in order to avoid the message being eavesdropped while been typed

      Typewritters are vulnerable. By moving to old school tech you are just moving the exploits back to old school too.

      The eavesdropping still occurs, its just after the typing. The "ink ribbon" is essentially a copy of what has been typed. It may be easier to smuggle out than a stack of papers. Plus there are the human errors where they are thrown into the normal trash rather than "properly" disposed of, or other failures of proper procedures. The famous Enigma project of WW2 relied heavily on enemy operator

  • Sounds like one of those university engineering projects where they tell you you're designing a drone control system to help aircraft drop water on fires or drop messages to stranded boats or some other humanitarian goal, but you know the actual application will always be dropping bombs onto enemies.

  • We load the data on a USB flash chip, place it in a tube that is inserted into a +120mm mortar shell, and then just point the sight at your target ship and press FIRE!

    The captain will know a message has arrived by the loud thump and subsequent dent in his cabin wall. And that's interrupt based so its extremely efficient.

  • I heard the early spy satellites both avoided data interception and achieved phenomenal bandwidth by recording their info on film and occasionally deorbiting a canister.

    Story was that it would re-enter near Hawaii, and an airplane would catch it as it did the last few thousand feet of its drop (to keep Russian submarines from grabbing it, as they no doubt would if it were allowed to hit the ocean and await pickup.)

    • by robbak ( 775424 )

      They also could float, but only for a brief time. A salt plug would dissolve, a chamber would flood, and the canister would sink to the deep ocean floor. Do what you like with your submarines - you aren't going to find a paint-can sized canister in thousands of square miles of deep ocean floor.

      • by davidwr ( 791652 )

        It makes me wonder if the film wasn't designed to "self destruct" if exposed to seawater.
        It wouldn't be hard to put something in the canister that if dissoved in water would cause the film to turn to plastic mush or at the least, destroy the information recorded on the film.

        • The gelatine coating of the film wouldn't last long (days, but not weeks) just from being in contact with water. It has to be water-permeable to let the developing chemicals get to the photosensitive dyes, and you time those exposures fairly carefully. Then you wash superfluous reagents away with half an hour to an hour of slow-flowing wash water. Dry, print. But if you leave a film in the wash for a week, the gelatine swells up, starts to get eaten by bacteria, and loses it's hold on the film substrate.
  • I think the DoD has finally figured out that the next big war we fight with a real adversary ( China, Russia, etc ) will be an interesting fight indeed.

    The very first thing that is going to happen is the destruction or degradation of orbiting assets. This means SIGINT, GPS and optical observation capabilities are going to be rendered useless right out of the starting gate. If your war strategy and / or War Toys rely too heavily upon the use of this technology, it's going to be a very short war I think.

    Tea

    • Much though I loathe people's over-dependence on GPS systems, this is a non-issue. China is building it's BDS, Russia has it's functioning GLONASS, Europe is building out it's GALILEO system, and the USA has it's GPS. So, you build your location-determination system to automatically use all of the systems, with a tendency towards those of non-combatants.

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