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 Chaining Comlinks |
 Jun 15 2006, 03:21 PM
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#26
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Dragon  Group: Members Posts: 4,664 Joined: 21-September 04 From: Arvada, CO Member No.: 6,686  |
Another benefit is it makes it much easier to stock IC and other nastys inside a rebroadcast commlink like that, while still allowing your drone to run the autosofts it needs.
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Jun 16 2006, 08:42 AM
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#27
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Runner Group: Members Posts: 2,925 Joined: 26-February 02 Member No.: 948 |
There's another way of taking control over drones as well. Lets assume that you do not have the programs needed for spoofing the signal or that you do not have the ability to hack it.
Intercept Wireless Signal (Page 225) With this you can intercept a signal from/to a drone by locating it first and then make an EDIT test to rewrite its orders. This would work best with prewritten orders that you just send over to the drone. "shutdown" "New Subscriber list" etc.. The best way to defend against this kind of attack would be to have a specifik order on your drones: "Confirmation of last order from Master Commlink" The order would be for the drone to doublecheckl the order with the original commlink by a specifik passcode from it. This way the attacker editing the signal would have to know the codes as well or the drone would ignore the fake command. |
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Jun 16 2006, 12:38 PM
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#28
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Moving Target Group: Members Posts: 984 Joined: 15-June 06 Member No.: 8,717 |
But then the Hacker would just have to listen in on confirmation call backs and he can accurately edit an order but has commlink access codes. |
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Jun 16 2006, 05:31 PM
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#29
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Shooting Target Group: Members Posts: 1,754 Joined: 9-July 04 From: Modesto, CA Member No.: 6,465 |
The convienence of wireless requires you to trust that your message will be received with perfect integrity. The only way to guarantee its integrity (since that information can be altered and duplicated) is to not use a wireless interface. The same argument applies to wired connections, however, there now exists a physical element to overcome by tapping the signal.
Interestingly in the field of Quantum Mechanics there is talk of being able to create a Quantum message that if observed destroys the message thus providing complete message integrity if it's intercepted. |
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Jun 16 2006, 07:20 PM
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#30
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Moving Target Group: Members Posts: 133 Joined: 8-September 05 Member No.: 7,718 |
There are many ways to ensure that the message is recieved correctly. If you are worried only about random coruption then a checksum is sufficent. If you are worried that someone is going to mess with your signal you can use digital signature technology to ensure the data gets passed correctly. Useing public-key crypto you don't even need a secure channel for key exchange. (But if you have your own drone you presumeably don't need this.) Quantum Mechanichal comunication is interesting in theory, but I have not heard that it has been made cannon in SR-land. Doing so woudl make deckers fairly useless. |
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Jun 22 2006, 01:44 PM
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#31
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Running Target Group: Members Posts: 1,002 Joined: 22-April 06 From: Canada Member No.: 8,494 |
Why not just run a hight level encrypt/decrypt program for the authentication of orders. It may slow your response down a bit but you will have a more secure network.
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