WikiWirral Wirral's Biggest Online Forum
Forum Stats
12356 Members
65 Forums
73371 Topics
990823 Posts
34 posts in the last 24hrs
Max Online: 7831 @ 8th Apr 2013 4:18pm
Who's Online - Click Me
75 registered (alan128, 14 invisible), 1382 Guests and 317 Spiders online.
Key: Admin, Global Mod, Mod
Social Media : Follow Us


(Views 7days)This Weeks Most Read
Rising crime? 900
Flood and storm warning 597
Clutch Problem 465
Twister : Wirral Local Flooding 23/7/2017 345
Nigel and Jacob 324
Norman Thelwell -Artist 313
Insurance Scam AKA Why I Have A Dashcam 270
Police Cars South Wirral Direction 255
Missing Cat. CH41 180
Tow Bar Tow Poles 177
New General Forums
Energy
by granny
Yesterday at 11:16 PM
How kids play
by granny
22nd Jul 2017 12:40pm
Acid attacks plague London, Whats really going on
by snowhite
19th Jul 2017 11:47am
Granny Pods
by granny
17th Jul 2017 7:53pm
New Wirral History
Norman Thelwell -Artist
by granny
18th Jul 2017 10:19am
Tunnel Flyovers Part 1
by Norton
15th Jul 2017 5:40pm
Where was St Catherine/Catharine Street Higher Tra
by derekdwc
11th Jul 2017 10:19pm
QE2 Visit September 1995
by Norton
10th Jul 2017 10:33pm
Wilfred Owen
by Fireblade
7th Jul 2017 8:58pm
Forum Tips
Photo Gallery Forums
Azamara,silouette and balmoral this mornig
Disney Magic
Topic Replies
Facebook problem
by fish5133
Today at 12:17 AM
uPVC guttering
by fish5133
Today at 12:04 AM
13 mtr carbon pole wanted
by fish5133
Yesterday at 11:55 PM
Wild Alaska Live
by granny
Yesterday at 09:12 PM
Wanted someone to swap over my sky box & broadband
by dodie
Yesterday at 06:48 PM
Fitting a chandelier?
by Gold_Moon
Yesterday at 04:25 PM
Insurance Scam AKA Why I Have A Dashcam
by diggingdeeper
Yesterday at 02:28 PM
Missing Cat. CH41
by RUDEBOX
Yesterday at 12:10 PM
What song are you listening to?
by eggandchips
Yesterday at 10:55 AM
July
M Tu W Th F Sa Su
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
Recent Posts : What's On ?
Tam O'Shanter Urban Farm Fun Day 6th August
by RUDEBOX
18th Jul 2017 9:31pm
charity fundraiser
by Dilly
16th Jul 2017 6:47pm
Topic Options
Rate This Topic
#335751 - 14th Jul 2009 10:36am Snooping through the power socket
MissGuided Offline

Awesome
Wiki Guardian

Registered: 18th Jul 2008
Posts: 9995
Loc: Back of the wardrobe
For the geeks smile

Power sockets can be used to eavesdrop on what people type on a computer.

Security researchers found that poor shielding on some keyboard cables means useful data can be leaked about each character typed.

By analysing the information leaking onto power circuits, the researchers could see what a target was typing.

The attack has been demonstrated to work at a distance of up to 15m, but refinement may mean it could work over much longer distances.

Hotel attack

"Our goal is to show that information leaks in the most unexpected ways and can be retrieved," wrote Andrea Barisani and Daniele Bianco, of security firm Inverse Path, in a paper describing their work.

The research focused on the cables used to connect PS/2 keyboards to desktop PCs.

Usefully, said the pair, the six wires inside a PS/2 cable are typically "close to each other and poorly shielded". This means that information travelling along the data wire, when a key is pressed, leaks onto the earth (ground in the US) wire in the same cable.

The earth wire, via the PC's power unit, ultimately connects to the plug in the power socket, and from there information leaks out onto the circuit supplying electricity to a room.

Even better, said the researchers, data travels along PS/2 cables one bit at a time and uses a clock speed far lower than any other PC component. Both these qualities make it easy to pick out voltage changes caused by key presses.

A digital oscilloscope was used to gather data about voltage changes on a power line and filters were used to remove those caused by anything other than the keyboard.

"The PS/2 signal square wave is preserved with good quality... and can be decoded back to the original keystroke information," wrote the pair in a paper describing their work.

They demonstrated it working over distances of 1, 5, 10 and 15m from a target, far enough to suggest it could work in a hotel or office.

"The test performed in the laboratory represent a worst case scenario for this type of measurement, which along with acceptable results emphasizes the feasibility of the attack on normal conditions," they added.

The pair said their research was "work in progress" and expect the equipment to get more sensitive as it is refined.

The attack is due to be demonstrated at the Black Hat conference that takes place in Las Vegas from 25-30 July.

Source
_________________________


Top
Google Ads
#335830 - 14th Jul 2009 4:26pm Re: Snooping through the power socket [Re: MissGuided]
purfek Offline
Smartchild

Registered: 23rd Apr 2009
Posts: 431
Loc: oxton
seems abit far fetcvhed really, I mean say u have several computers in an office or building how could you isolate each one? I would have thought other high security information technology systems would have run on a protected power source too. Recording studios use a technology called "earth lift" or floating earth as do some theatre installations.
purfec

Top
#335836 - 14th Jul 2009 4:43pm Re: Snooping through the power socket [Re: purfek]
diggingdeeper Offline

Wiki Master

Registered: 9th Jul 2008
Posts: 10381
Loc: Birkenhead
I've done this using a radio connected to another computer. Computers generate tons of radio cr*d but chosing the right frequency and they can tell you loads.

In the days of storing programs on cassettes you could receive that from an adjacent radio as well. I could do some stuff jsut by listening to it, I was a morse code operator and a musician which is why I tried - there was always a speed challenge with morse!

Luckily most stuff is too fast these days and hence has a wide bandwidth that overlaps with other stuff making it more difficult to isolate what you want, but not mpossible, just less accuracy.
_________________________
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

When the debate is lost, slander becomes the tool of the loser. Socrates

Top
#335903 - 14th Jul 2009 10:30pm Re: Snooping through the power socket [Re: diggingdeeper]
scoops Offline
Smartchild

Registered: 27th Oct 2008
Posts: 531
Loc: Lurking
Nice to see the beeb are keeping up to date with technology and reporting on security problems that were discovered as recently as 1972 wink
_________________________
If it's stupid and it works, it ain't stupid.

Top
#335905 - 14th Jul 2009 10:38pm Re: Snooping through the power socket [Re: scoops]
Sanchez Offline

Wiki Veteran

Registered: 17th Dec 2003
Posts: 8019
Loc: my house
my internet is sent through the mains with a convertor from pc world, so I firmly belive this is possible.
_________________________
Uncertainty or not knowing causes depression, Im happy because I know I'm going to die one day!

Top
#335907 - 14th Jul 2009 10:57pm Re: Snooping through the power socket [Re: Sanchez]
SoundLad Offline

Are you SoNutz?
Forum Master

Registered: 22nd Aug 2007
Posts: 2988
Loc: Birkenhead, United Kingdom
One of the oldesst tricks in the book.. Also if you know how.. Connect a scanner to the computer find certain frequencies and you can eavesdrop on the old pager some people still use it today.. Yep you can read peoples pager info lol smile
_________________________
Lee Mills


Top

Moderator:  Mark 
Random Wirral Images

Click to View Topic.
Newest Topics
Wanted someone to swap over my sky box & broadband
by dodie
Yesterday at 06:48 PM
uPVC guttering
by vampy1977
Yesterday at 05:18 PM
Facebook problem
by geprgie260
Yesterday at 01:48 PM
13 mtr carbon pole wanted
by pacef8
23rd Jul 2017 10:25pm
Fitting a chandelier?
by Gold_Moon
23rd Jul 2017 9:37pm
For Sale & Free
In car DVD
by monsterz4
22nd Jul 2017 4:26pm
XBox One Games
by rhoobarb2002
19th Jul 2017 11:02am
Gardener Oxton Area
by Guzzler
18th Jul 2017 7:46pm
High end gaming pc
by brady
16th Jul 2017 6:36pm
Spanners and hand tools
by anniebo28
16th Jul 2017 3:36pm
Featured Member
Registered: 27th Dec 2010
Posts: 1796
Newest Members
JohnMerick, JohnD_, Trulyscrumpcious, Mrsilent, Drew67
12356 Registered Users
Today's Birthdays
No Birthdays
New Wirral Info
Wanted someone to swap over my sky box & broadband
by dodie
Yesterday at 06:48 PM
uPVC guttering
by vampy1977
Yesterday at 05:18 PM
Facebook problem
by geprgie260
Yesterday at 01:48 PM
Fitting a chandelier?
by Gold_Moon
23rd Jul 2017 9:37pm
Looking for Joyce Randles and family
by Gibbo
20th Jul 2017 1:10pm
News : New Topics
Stolen 2 Storck Bikes Claughton Area
by fish5133
23rd Jul 2017 8:56pm
Twister : Wirral Local Flooding 23/7/2017
by Mark
23rd Jul 2017 8:39am
Insurance Scam AKA Why I Have A Dashcam
by diggingdeeper
21st Jul 2017 3:29pm
Rising crime?
by Excoriator
21st Jul 2017 12:34am
Nigel and Jacob
by granny
20th Jul 2017 11:54am
New Enthusiast Forums
13 mtr carbon pole wanted
by pacef8
23rd Jul 2017 10:25pm
Dashcam Falling Off
by Moonstar
23rd Jul 2017 2:39pm
Wild Alaska Live
by cools
23rd Jul 2017 2:09pm
Tow Bar Tow Poles
by fish5133
22nd Jul 2017 8:45pm
Missing Cat. CH41
by RUDEBOX
20th Jul 2017 2:16pm
(Views 24hrs)Trending Newest Topics
Facebook problem 175
uPVC guttering 53
Wanted someone to swap over my sky box & broadband 38
Energy 5
Wirral Sunrise Sunset
Sunrise Tue 5:17am
Sunset Tue 9:19pm
Local Time Tue 3:10am
WikiWirral Can . . . .