WiFi Security Paint
Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: WiFi Security Paint

  1. #1
    Senior Member nihil's Avatar
    Join Date
    Jul 2003
    Location
    United Kingdom: Bridlington
    Posts
    17,190

    WiFi Security Paint

    The Japanese have discovered a WiFi security paint.

    So how does this new blocking paint actually work? Well, electromagnetic (EM) waves can only be blocked when a material's magnetic field resonates at the same frequency as the wave. The New Scientist says that wave absorbers are usually made from iron-rich oxides, but higher-frequency transmissions outstrip the power of iron to absorb electromagnetic waves. This is because the standard oxide coating has a maximum resonance frequency that is outstripped at 48GHz.
    But Shin-ichi Ohkoshi's team at the University of Tokyo in Japan has now identified a new aluminium-iron oxide able to block waves with a frequency almost four times higher. They used a sensitive magnetometer (a scientific instrument used to measure the strength and/or direction of a magnetic field) to confirm that a powder of the new oxide can absorb EM waves of up to 182GHz at room temperature.

    More here:

    http://www.itworldcanada.com//Pages/...A-B2C4D89EE233

  2. #2
    Senior Member t34b4g5's Avatar
    Join Date
    Sep 2003
    Location
    Australia.
    Posts
    2,391
    As long as i'm able to choose the colour of the paint then this is great.

    Just a matter of time before someone stumbles upon a way to bypass it.

  3. #3
    Senior Member
    Join Date
    Oct 2003
    Location
    MA
    Posts
    1,052
    Thats actually a pretty cool concept. You can paint all your exterior walls with with it to block it the signal from leaving your house or biz.

  4. #4
    Senior Member nihil's Avatar
    Join Date
    Jul 2003
    Location
    United Kingdom: Bridlington
    Posts
    17,190
    As long as i'm able to choose the colour of the paint then this is great.
    My bet is that you can have any colour you like so long as it is grey or red. That shouldn't matter though, as it would be applied as a primer or undercoat I would have thought?

    Just a matter of time before someone stumbles upon a way to bypass it.
    I don't think so, given that is a physical solution. Its effectiveness will be dependent on signal frequency/strength and the sensitivity of the receiving equipment.



  5. #5
    Junior Member coaxial.bluegrass's Avatar
    Join Date
    Jan 2009
    Location
    West Toast
    Posts
    6
    Interesting...rather ironic that a security solution would be physical rather than "technical," eh? Although it would require all sensitive info to remain within the walls of a single building and never leave, and there's always room for human error, but used along with other solutions it could be highly effective, it seems like.

  6. #6
    Senior Member nihil's Avatar
    Join Date
    Jul 2003
    Location
    United Kingdom: Bridlington
    Posts
    17,190
    Hi coax~,

    Interesting...rather ironic that a security solution would be physical rather than "technical," eh? Although it would require all sensitive info to remain within the walls of a single building and never leave, and there's always room for human error,
    Yeah, physical as in physics and chemistry, rather than IT software or even hardware/firmware.

    As for the single building concept, that would not necessarily apply to a site, base or camp? You could always move stuff physically, create a suitable physical barrier (DMZ) or use "line of sight" connection technology.

    It has been a while, and certainly after my time, but I think that line of sight is pretty much accepted in modern battlefield communications?

  7. #7
    @ΜĮЙǐЅŦГǻţΩЯ D0pp139an93r's Avatar
    Join Date
    May 2003
    Location
    St. Petersburg, FL
    Posts
    1,696
    Directional antenna aimed at the Window?


    $20 says that if this is actually implemented widely at least a handful of people in each office are going to be convinced it will give them cancer from the "buildup" of signals.
    Real security doesn't come with an installer.

  8. #8
    Senior Member nihil's Avatar
    Join Date
    Jul 2003
    Location
    United Kingdom: Bridlington
    Posts
    17,190
    Directional antenna aimed at the Window?
    I guess that it is antenna to antenna, but I honestly don't know the technology........way after my time

  9. #9
    Junior Member coaxial.bluegrass's Avatar
    Join Date
    Jan 2009
    Location
    West Toast
    Posts
    6
    Quote Originally Posted by D0pp139an93r View Post
    Directional antenna aimed at the Window?


    $20 says that if this is actually implemented widely at least a handful of people in each office are going to be convinced it will give them cancer from the "buildup" of signals.
    Ha, I was thinking that...

    I wasn't thinking in terms of a camp or site, but I suppose that would work...I was thinking more in terms of banking security than, say, national security, however.

  10. #10
    Disgruntled Postal Worker fourdc's Avatar
    Join Date
    Jul 2002
    Location
    Vermont, USA
    Posts
    797
    One of my stints in the navy was working on UHF transcievers. We worked in a Faraday cage. That cancelled all inbound and outbound RF, EMI and static electricity.

    It would be expensive to "wallpaper" your office with copper mesh. The paint or mesh isn't going to stop any leakage at the windows.

    If you're building an office, just hardwire the damn thing, turn off any unused ports.
    ddddc

    "Somehow saying I told you so just doesn't cover it" Will Smith in I, Robot

Similar Threads

  1. Ethical Hacking!
    By E5C4P3 in forum AntiOnline's General Chit Chat
    Replies: 33
    Last Post: January 17th, 2008, 12:40 AM
  2. 30 security holes in Oracle
    By SDK in forum Miscellaneous Security Discussions
    Replies: 1
    Last Post: August 5th, 2004, 07:13 PM
  3. Best Security Websites
    By AngelicKnight in forum Newbie Security Questions
    Replies: 37
    Last Post: June 28th, 2004, 02:29 PM
  4. NEWS: This weeks security news. 10/2/02
    By xmaddness in forum Miscellaneous Security Discussions
    Replies: 1
    Last Post: October 2nd, 2002, 10:32 PM
  5. Latest SANS Update
    By xmaddness in forum Miscellaneous Security Discussions
    Replies: 0
    Last Post: May 29th, 2002, 10:27 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •