VaKo Posted April 16, 2006 Share Posted April 16, 2006 Doing it with a manual switch (ie the power goes out, unplug and connect the batterys) would be pretty simple. Hell i got it to work with nothing more than sticky tape and a kitchen knife. But making it automatically switch would need an additional PCB, which you must be able to get off the shelf or make fairly quickly. An easy way of making it last longer is getting some airsoft batterys and connecting them up. Quote Link to comment Share on other sites More sharing options...
Shaun Posted April 16, 2006 Share Posted April 16, 2006 Well, you would have one of thoughs trigger switches, where when power isn't flowing though one cercuirt it chooses cercit one (The battary) but when it is it chooses circet two (the mains source), it's that simple... ok, it's not exacly simple, but thats the idea. A relay. http://www.kpsec.freeuk.com/components/relay.htm Quote Link to comment Share on other sites More sharing options...
moonlit Posted April 17, 2006 Share Posted April 17, 2006 That'll be the one... Quote Link to comment Share on other sites More sharing options...
VaKo Posted April 17, 2006 Share Posted April 17, 2006 Is there a solid state version of a relay? Something without moving parts? Quote Link to comment Share on other sites More sharing options...
moonlit Posted April 17, 2006 Share Posted April 17, 2006 Well there's transistors which do a similar thing, though I'm not sure what the voltages/currents you're using are gonna mean when using transistors... Quote Link to comment Share on other sites More sharing options...
VaKo Posted April 17, 2006 Share Posted April 17, 2006 Well there's transistors which do a similar thing, though I'm not sure what the voltages/currents you're using are gonna mean when using transistors... For this particular bit of kit, i belive the max it uses is 9v DC... which in transistor terms means.... what? Champagne all round or a nasty burning smell? Quote Link to comment Share on other sites More sharing options...
moonlit Posted April 17, 2006 Share Posted April 17, 2006 erm... not sure actually VaKo, I flunked Electronics lol I'm sure there is a way to do it with transistors, and maybe a few diodes and resistors but I'm hoping someone has more info, 'cos I can't remember much about it... Quote Link to comment Share on other sites More sharing options...
Shaun Posted April 17, 2006 Share Posted April 17, 2006 Well a DPDT relay would work well, if you have the NO circuit as the battery power and the NC circuit as the power brick and the coil connected to the power brick as well (in parallel with the NC pins) it would work (hopefully). It would be more complicated with transistors I think as you would need multiple transistors to have the same effect at a DPDT relay. Quote Link to comment Share on other sites More sharing options...
VaKo Posted April 19, 2006 Share Posted April 19, 2006 Well, i have managed to solder it, and included a twist switch, so its coming along. Quote Link to comment Share on other sites More sharing options...
Sparda Posted April 19, 2006 Author Share Posted April 19, 2006 Cool Cool, keep us up to date. Perhaps we should market these (after the prototype and testing is compleated) as "Hak.5 portable switches" ^^, actualy a HUB would be better, that way you don;t have to mess about with the ARP tables for man in the middle attacks. Quote Link to comment Share on other sites More sharing options...
TheZ Posted April 19, 2006 Share Posted April 19, 2006 i would buy a hak5 battery powered hub spray painted black with the hak.5 logo on it 8) Quote Link to comment Share on other sites More sharing options...
VaKo Posted April 19, 2006 Share Posted April 19, 2006 /me opens an ebay account and orders a crate of black spray paint (atm there's no way I could ship one out, it looks like a bomb) Quote Link to comment Share on other sites More sharing options...
TheZ Posted April 19, 2006 Share Posted April 19, 2006 just mod the case a little bit. make it look better and i would pay for it( by I i mean ask my parents or just eventually buy one). Quote Link to comment Share on other sites More sharing options...
Sparda Posted April 19, 2006 Author Share Posted April 19, 2006 That would be fun ^^ "We are giving these 10 people Hak.5 battery powered HUBs, lets see who can get it though customs fastest!" :D Quote Link to comment Share on other sites More sharing options...
moonlit Posted April 19, 2006 Share Posted April 19, 2006 I would do that but I have no hubs... ...though I have a USB hub I can work on... lol - it's active rather than passive but requires a wall-wart - could battery-ise that... dunno how useful it'd be in the field though lol@sparda :D Quote Link to comment Share on other sites More sharing options...
TheZ Posted April 19, 2006 Share Posted April 19, 2006 I have no humbs at all i would bring it to my school with my laptop and have my friends bring there laptops and we'll have cs 1.6 matches at lunch :D Quote Link to comment Share on other sites More sharing options...
VaKo Posted April 19, 2006 Share Posted April 19, 2006 Its really simple to make. Once I get some cash together i'll do a full write up and have you spending all your pocket money on AA batterys in no time at all! Quote Link to comment Share on other sites More sharing options...
moonlit Posted April 19, 2006 Share Posted April 19, 2006 heheh - go rechagables! Quote Link to comment Share on other sites More sharing options...
Sparda Posted April 19, 2006 Author Share Posted April 19, 2006 Just having a good thing about it, a HUB is good becasue you can just open Etheral and start listening to peoples trafic, but it's bad because it makes SSL attacks imposible (am I right?) becasue you can't intercept the request for the SSL certificate like you can with a switch (some one please conferm or proov this wrong). Quote Link to comment Share on other sites More sharing options...
cooper Posted April 19, 2006 Share Posted April 19, 2006 I think you've got it somewhat backwards. Hub: all data received on any of its ports is retransmitted on all other ports. Switch: all data received on any of its ports is only retransmitted on the port where the destination machine is known to be. I don't see how having a hub allows you to received *ALL* data sent by the other machines, but somehow not the SSL certificate... :? Quote Link to comment Share on other sites More sharing options...
VaKo Posted April 19, 2006 Share Posted April 19, 2006 quick question: how would I make a simple SSL cert. to try cracking? Quote Link to comment Share on other sites More sharing options...
stingwray Posted April 19, 2006 Share Posted April 19, 2006 OpenSSL on a Linux machine. Quote Link to comment Share on other sites More sharing options...
Sparda Posted April 19, 2006 Author Share Posted April 19, 2006 Well, the idea is that with a switch ARP spoof atack all data is sent to the attacksers computer and that attacks computer sends it on, but with a HUB this is not posible as the data is sent reguradless of wather it was intercepted or not. Quote Link to comment Share on other sites More sharing options...
TheZ Posted April 20, 2006 Share Posted April 20, 2006 oh yeah since hubs just rebroadcast what ever it recieves. while i switch directs traffic to that mac address :P Quote Link to comment Share on other sites More sharing options...
zivilyn Posted April 20, 2006 Share Posted April 20, 2006 Not to be a huge killjoy... but imho this isn't quite a "hack." Not counting solder, you can modularly's change a hub's/switch's power source for just over $1 US. Battery Holder: http://www.futurlec.com/Batteries-Holders.shtml $0.30 each Female Power Plug: Digi-Key Part Number CP-002D-ND Description CONN POWER PLUG 1.3MM *This varies with the specs of the hub/switch $0.78 each Add some solder, and you've got yourself a pluggable power source for $1.08. Quote Link to comment Share on other sites More sharing options...
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