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dimecres, 30 / agost / 2006 |
[TG Daily] A wireless hacking computer that can't be hacked. Un portàtil de somni: vuit targetes WiFi (802.11a/b/g) per fer proves de seguretat a xarxes sense fils... i una opció única: un interruptor que desconnecta immediatament l'ordinador!
At first glance, the Janus computer looks like a laptop, but Williams said it is much more powerful than that. Inside the rugged yellow case sits a mini-computer motherboard powered by a 1.5 GHz VIA C7 processor and an Acer 17" LCD screen. Ubuntu 6.0 Linux runs the eight Atheros a/b/g Gold mini-PCI cards which continuously scan wireless networks. The mini-PCI cards are connected to two four-port PCI to mini-PCI converter boards. The wireless data is stored onto a 20 GB hard drive.
While the eight Wi-Fi cards are impressive, the Janus box also has two Teletronics 1 watt amplifiers along with external antenna ports in the back of the Pelican case. Williams made every port watertight by sealing them with epoxy and silicone. "When the lid is closed, it is essentially waterproof," said Williams.
So what does all of this wireless firepower provide? The Wi-Fi cards allow Williams to continuously scan and capture traffic from any wireless channel. Williams likes to continuously dump the raw network traffic to the hard drive, while running the Kismet scanner to get a "bird's eye" view of the area. From his Riviera hotel room and using a 1W amplified antenna, Williams said his Janus computer was able to capture data from 300 access points simultaneously. He said over 2000 access points were scanned and 3.5 GB of traffic was captured during the entire convention.
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In addition to the capturing process, the hard drive and memory contents are continuously encrypted with AES 256-bit keys. There is also an "Instant Off" switch that, according to Williams, renders the captured data inaccessible to anyone but him.
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the computer can break most WEP keys very quickly by focusing all eight wireless cards on the access point. Using a combination of common utilities like airreplay, airdump and aircrack, Willams said, "When I use all 8 radios to focus in on a single access point, [the WEP key] lasts less than five minutes.
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20:52 (# Enllaç permanent) | Comentaris: | Trackback:
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[ScienceDaily] First Quantum Cryptographic Data Network Demonstrated
A joint collaboration between Northwestern University and BBN Technologies of Cambridge, Mass., has led to the first demonstration of a truly quantum cryptographic data network. By integrating quantum noise protected data encryption (quantum data encryption or QDE for short) with Quantum Key Distribution (QKD), the researchers have developed a complete data communication system with extraordinary resilience to eavesdropping.
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17:35 (# Enllaç permanent) | Comentaris: | Trackback:
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 Live View és una eina Java per a la realització d'anàlisis forenses: crea una màquina virtual VMware a partir d'una imatge de disc (dd) o bé d'un disc físic, de forma que es pot arrencar el disc que s'està analitzant però sense modificar-ne el contingut.
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© Copyright 2003-2006 Xavier Caballe.  . Si no s'indica expressament el contrari, el material publicat en aquest weblog es distribueix d'acord amb la llicència Creative Commons. El contingut és responsabilitat única i exclusivament del seu autor i no té cap relació amb les seves activitats professionals.
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