Tuesday, August 25, 2009

N93i Ultimate One.......



I should stress right at the outset that the Nokia N93i isn't strictly an upgrade to the N93. The N93i is an evolution of the original design, to be sure, and the main point is that it's much slimmer and more visually appealing, thus attracting people who would have dismissed the original bulk of the N93. It remains to be seen how long the N93 stays available for, but I'd guess that the two can coexist happily for a while. The N93i is the one most newcomers will buy, but there are quite a few compromises made in the N93i design that might annoy anyone determined to buy the 'flagship' S60 smartphone. For more on the pros and cons, read on....


First impressions of the N93i are excellent, with the large mirror-backed screen prominent and attractive, with a silver surround that's unfortunately not carried down into the base unit, which remains black(ish) - the two-tone silver/black looks a little odd. The camera housing still dominates the top of the N93i, but it's been restyled since the N93 and is slightly thinner.


Using a combination of newer screen technology (the small exterior display is now OLED) and clever concave sculpting (see the diagram, right) the majority of the N93i is a good 5mm thinner than the N93. This is a huge difference and obviously THE main selling point of the newer model when picking it from a line-up. With the slimmer form comes lower weight too, 17g less than the N93, at 163g. Holding and opening up the N93i doesn't overwhelm you with its bulk, unlike the original N93. The combination of mirror top and svelte form factor transforms the device into something more instantly desirable.
Other physical improvements made in the N93i include:
  • a joystick rather than d-pad for the side (camera mode) controller - this is significantly less fiddly
  • a recessed lanyard mount on the bottom of the device - saving a couple of millimetres in length in one go
  • a flush-fitting and more secure miniSD slot cover
  • a tethered cover for the Pop-port connector - no chance of this one getting lost(!), although leaving it hanging there while you listen to music on the Pop-port stereo headset looks and feels somewhat messy
  • relocation of the main speaker to the base unit - again, to help save space in the lid assembly
  • a redesigned battery cover that's a lot easier to remove and reattach
  • a proper SIM card recess (rather than the flimsy and fiddly clasp on the N93)
  • a charging LED set underneath the mirror top
The redesigned miniSD slot
The tethered Pop port cover
Opening up the Nokia N93i reveals changes too, both positive and negative. Most obvious is the flush, metallic keypad, probably a necessity given the new slimmer lines of the base unit. There are spidery rubber inlays to improve grip and give you a better sense of where the key boundaries are in the dark. Although this largely works well and there's a definite 'click', the amount of force needed to effect each keypress is fairly high and the N93i isn't as useable as its predecessor when it comes to text entry. I also didn't like the way there were no dividers between the Green/Edit and (more vitally) C/Red 'keys', it's going to be quite easy to go for 'C' and hit the hangup button by mistake, thus ending the application you're in.
The flush metallic keypad
Having reckoned the N93 had just about the best display of any smartphone I'd seen (in all light conditions), the N93i blew me away, indoors at least, with its colour rendition of my photos. The N93i has 16 million colours rather than the N93's (paltry!!!) 262,000 available. What this means is that colours are more vibrant and more accurate, which is good. Not so good is that the change in screen technology has meant undistinguished performance outdoors, especially in sunlight, as shown below. The outer layer of the screen proved too reflective and consequently ruined the contrast, whereas the original N93 screen reflected nicely off the back of the display, giving excellent contrast in the brightest of light.
Contrast in bright sunlight isn't so good....
The main reason why outdoor screen contrast is important, of course, is because it's the viewfinder for all still and video camera functions, the main raison d'etre for the N93 and N93i. Although restyled, the camera seems to be identical, in terms of hardware, to that in the N93, though once you examine photos you'll realise that there is a significant difference.
In camera mode
As you know, the raw CMOS sensor data from a smartphone camera gets processed by various hardware and software in order to improve contrast while reducing digital 'noise' and artificial constructs ('artefacts') brought about because of the physical layout of the sensor and optics, and because of the compression schemes used to keep the amount of data manageable. In the Nokia N93, the noise reduction seemed to be largely turned off, with the result that images were very crisp but horribly full of artefacts if you zoomed in very closely. For the N93i, there's far more noise reduction applied, with the result that artefacts (i.e. detail that isn't really there in the first place) get blurred out, to hopefully result in a more pleasing picture, even if the photo isn't apparently quite as crisp as the same image taken on the original N93. A nice side benefit of the reduced level of artefacts is that JPG file sizes are considerably (up to 50%) smaller.
N93 vs N93i - extreme zoom on low light photo
Which noise reduction setup you prefer is down to personal preference - but for most people it won't matter as there's nothing you can do to adjust it on each device - and in any case, the photos are more than good enough on both devices for semi-professional use. There are the usual range of focus presets and lighting modes (e.g.'Incandescent'), plus of course the tremendous 3x optical zoom, making the N93i as good as many standalone digital cameras. Focussing is done by the usual gentle pressing of the main shutter button and, impressively, I found the speed of auto-focus to be far quicker on the N93i than on the N93, a real boon as speed of focus has always been an N93 gripe.
N93 vs N93i - shooting each other, and in better light
Although in theory, N93i video recording should be the same as on the N93, with the familiar VGA (640 by 480) capture at 30 frames per second, better than anything else currently available, there are several significant differences. On the plus side, there's now the option for 'Continuous auto-focus', with the usual tick-tick-ticking of the focussing mechanism activating as your subject matter changes. Being able to film items really close up is a huge advantage, probably offsetting the fact that the mechanism noises make their way onto the video soundtrack.
Talking of soundtracks, one big minus point is that the move of the stereo microphones from either side of the camera housing (on the N93) to beside the power button (on the N93i) has meant lower sound levels overall and a reduction in the stereo separation.
Barrel
I've had a few minor issues with handling the MP4 files produced by the two N93 variants, but digital video is such a complicated area that I'm not prepared to lay the blame with the smartphones at this time. I can suggest you steer clear of the supplied Adobe Premiere Elements as your editing software unless you have an absolute monster dual-core PC.
Screenshot Screenshot Screenshot
Away from multimedia, the Nokia N93i is familiar on all fronts, it's standard S60 3rd Edition all the way, though with the extra tweak that you can run any application in 'landscape' mode by twisting the screen round in the other direction. And, as with the N93, you can echo your display out to a widescreen TV using the supplied TV-out lead and extra graphics chips in the smartphone. Being able to shoot video and then play it back straight away on any TV... and then upload it directly to the web to a video blog via a Wi-Fi connection is just cool, cool, cool. And blogging got even easier too, at least in theory, with the addition of Vox to the 'Open online service' option in Gallery (Flikr is already there). Just don't try this at home on a typical European data tariff...
Screenshot Screenshot
The N93i comes with a handful of dark and moody themes, as shown below, although I preferred to use it with a much lighter theme, giving more screen clarity in daily use.
Screenshot Screenshot
There's also the WLAN wizard, as featured in the very latest N93 firmware, helping you to define an access point directly from an initial scan of the airwaves. As with other S60 3rd Edition smartphones, the Wi-Fi reception isn't spectacular and you'll need to be close to a router for perfect operation. As with the N93, there's support for UPnP (over Wi-Fi), should your home a-v equipment support this for streaming media. Quickoffice is supplied for business use, in viewer form but with the latest Quickmanager module for over-the-air upgrading to full edit mode.
Screenshot Screenshot
Another casualty of the slimmer form is the battery, which is now a 950mAh BL-5F rather than the 1100mAh battery in the N93. This is a little worrying to be honest - when using the N93 day to day with a reasonable amount of photography or filming, I was often out of power by nightfall. To have battery capacity reduced is definitely cause for concern.
S60 itself shows the same maturity as in the N93, with almost 22MB of RAM free after booting, ensuring that memory problems in use are few and far between, even when starting up a Java program or a satellite navigation app.
In summary, here are the pros of each of the N93 models, based on my experience:
Nokia N93 Nokia N93i
Longer battery life
Clearer sound on video recordings
Better stereo separation on video recordings
More legible and tactile numeric keypad
Much clearer display in sunlight
Slimmer, sleeker, shorter
Better on-board optical noise reduction on still images
Faster auto-focus
Option of continuous focus in video recordings

16 million colour display
Better Pop port and card covers
Better side joystick
By necessity, I've been concentrating on technical differences from the N93, but most new users will be coming to the N93i fresh and will be blown away by its features and capabilities. N93 purists may want to hang onto their black (or silver) monsters, with better screen contrast, better video sound, proper keys and longer battery life, but for everyone else the new slimline member of the N93 family is a very welcome addition.
The N93i looks and feels like a second generation design and will doubtless delight many a new Nseries customer as well as make jaws drop around the world, in homes and offices, both at its looks and at the sheer number of things such a relatively small device can do.

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N78 The Vehcile Gadget Mobility

One of Nokia's new N-series multimedia computers - the N78. It runs S60 3.2 / Symbian 9.3 has all the usual features - 3.2MP camera, WiFi, HSDPA, GPS... yawn - plus something new: An integrated FM transmitter. That means you can play music off your phone over any bog-standard FM radio with no cables. Quite useful for long car rides, I'm sure. James Nash (aka Cirrus) James Nash (aka Cirrus) -->
One of Nokia's new N-series "multimedia computers" - the N78. It runs S60 3.2 / Symbian 9.3 has all the usual features - 3.2MP camera, WiFi, HSDPA, GPS... yawn - plus something new: An integrated FM transmitter. That means you can play music off your phone over any bog-standard FM radio with no cables. Quite useful for long car rides, I'm sure.




Technical specifications:-

General:-

Sleek design; Capable multimedia computer
  • Search and find places and know how to get there, with integrated A-GPS
  • Tag images automatically with capture location and upload directly to the web
  • Browse the internet with large 2.4” display, access the web over Wireless LAN (WLAN) with automatic hotspot authentication
  • Up to 24-hour music playback time, scroll to your favorite tracks using Navi™ wheel
  • Access images, music, podcasts, video with high speed WLAN, or 3.5G connection

Operating Frequency
  • Dual mode WCDMA 900/2100 (HSDPA), GSM/GPRS/EGPRS 850/900/1800/1900 MHz
  • Automatic switching between bands and modes

Dimensions
  • Volume: 76.5 cc
  • Weight: 101.8 g
  • Length: 113 mm
  • Width: 49 mm
  • Thickness (max): 15.1 mm

Memory Functions
  • Up to 70MB internal memory
  • MicroSD memory card support (hot swappable)
  • Approx. memory capacity indication with included 2GB microSD card:
    -Video (VGA @ 15fps): up to 120 min
    -Photos (3.2 megapixel): up to 3,400 photos
    -Music (eAAC+): up to 1,500 tracks*

* Capacity based on 3:45 per song with 48 kbps eAAC+ (M4A) encoding on the Nokia Audio Manager. Capacity with 128 kbps AAC encoding is up to [550] songs.

Power Management*
  • Battery: Nokia Battery BL-6F 1200mAh
  • Talk time: up to 190 minutes (WCDMA); 260 minutes (GSM)
  • Stand-by time: up to 320 hours (WCDMA); 320 hours (GSM)
  • Still images: up to 375 pictures (3.2 megapixel)
  • Video capture: up to 215 minutes (VGA @ 15fps)
  • Video call: up to 125 minutes
  • Video playback: up to 280 minutes (VGA @ 15fps)
  • Music playback: up to 24 hours (offline mode)
  • Web browsing: up to 3 hours (3.5G)
  • FM radio: up to 14 hours

*Operation times may vary depending on radio access technology used, operator network configuration and usage.

Display and User Interface
  • 2.4” QVGA (240 x 320 pixels) TFT color display with up to 16 million colors and wide 160° viewing angle. Ambient light detector - to optimize display brightness and power consumption
  • Operating system: Symbian OS
  • User Interface: S60 3rd Edition, Feature Pack 2
  • Java™: MIDP2.0
  • C++ and Java SDKs

Call Management
  • Call logs, speed dial, voice dialing, voice commands, and talking ringtone

Messaging
  • E-mail (SMTP, IMAP4, POP3), MMS, SMS

Data Transfer*
  • Dual mode WCDMA 900/2100 (HSDPA) with simultaneous voice and packet data (PS max speed UL/DL= 384/3.6MB, CS max speed 64kbps)
  • Dual Transfer Mode (DTM) support for simultaneous voice and packet data connection in GSM/EDGE networks. Simple class A, multi slot class 11, max speed DL/UL: 118.4/118.4 kbits/s
  • EGPRS class B, multi slot class 32, max speed DL/UL= 296 / 177.6 kbits/s
*Actual achieved speeds may vary depending on network support.
Imaging :-

Imaging and video
  • 3.2 megapixel (2048x1536 pixels) camera, Carl Zeiss Optics, Tessar™ lens, 20x digital zoom, MPEG-4 VGA video capture of at 15 fps
  • Secondary camera, CIF (352x288 pixels) sensor
  • On device photo editor (manual & automatic) and video editor (manual).
  • 2.4” QVGA (240 x 320 pixels) TFT color display with up to 16 million colors and wide 160° viewing angle. Ambient light detector - to optimize display brightness and power consumption
  • Nokia XpressShare solution - share easily from Photos application or after capture via email, by using Bluetooth connectivity or MMS.
  • Video call and video sharing support (WCDMA network services)
  • Online album/blog: one click image/video uploading from Photos application or camera post-capture view
  • Tag images automatically with capture location and show on a map where they were captured.
  • Transfer and organize photos and video between your device and compatible PC with Home Media solution.
  • Nokia XpressPrint solution – online printing service or direct printing via USB, Bluetooth connectivity (BPP), WLAN (UPnP), from compatible memory card.

Mobile Video
  • Video resolutions: up to VGA @ 15 fps
  • Audio recording: AAC stereo, 48kHz
  • Digital video stabilization
  • Video clip length: max 60 min per clip
  • Video file format: .mp4 (default), .3gp (for MMS)
  • White balance: automatic, sunny, cloudy, incandescent, fluorescent
  • Scene: automatic, night
  • Color tone: normal, sepia, B&W, negative
  • Zoom: Digital up to 8x

Mobile Photography
  • Still image resolutions: 3.2 megapixel (2048x1536)
  • Still image file format: JPEG/EXIF
  • Auto focus
  • Auto exposure - center weighted AE
  • Exposure compensation: +2 ~ -2EV at 1/3EV step
  • White balance : automatic, sunny, cloudy, incandescent, fluorescent
  • Scene: automatic, user, close-up, landscape, night, night portrait
  • Colour tone: normal, sepia, B&W, negative
  • Zoom: Digital up to 20x
  • LED flash
  • Secondary camera, CIF (352 x 288) sensor

Camera Specifications
  • CMOS, 3.2 megapixel (2048x1536)
  • Carl Zeiss optics: Tessar™ lens
  • Focal length: 4.6 mm
  • Focus range: 10 cm ~ infinity
  • Macro focus distance: 10 cm - 30 cm
Music :-

Music Features
  • OMA DRM 2.0 support for music.
  • Integrated FM transmitter* (88.1 – 107.9 MHz)
  • Nokia Internet Radio
  • Stereo speakers
  • Nokia Stereo Headset HS-45/AD-54
  • Digital music player: supports MP3/ AAC/ AAC+/ eAAC+/ WMA with playlists, equalizer and album art.
  • Synchronize music with Windows Media Player 10 & 11.
  • Rip your CDs with one click, converting and transferring music to your device using Nokia Music Manager
  • Stereo FM radio (87.5-108MHz /76-90MHz) with Visual Radio™ support
Explore :-

Navigation
  • Integrated Assisted Global Positioning System (A-GPS)
  • Pre-installed Nokia Maps application and downloadable maps*
  • Comes with a selection of the regional maps

E-mail
  • Easy-to-use email client with attachment support for images, videos, music and documents
  • Compatible with Nokia Wireless Keyboard SU-8W (sold separately)

Browsing
  • Nokia Web Browser with Mini Map
  • Web feeds support (RSS)
  • xSP framework support

Digital home
  • Access multimedia content on your compatible home media network over UPnP.
  • Automatically synchronize your mobile and home content with Home Media solution

Java Applications
  • Java™: MIDP2.0
  • Over-the-air download of Java-based applications and games

Other Applications
  • Personal Information Management (PIM)
  • Advanced S60 PIM features including contacts, calendar, to-do list, notes, recorder, calculator, clock, converter
  • Office applications: Quickoffice supports viewing of common e-mail attachments and Adobe PDF Reader
  • Setting wizard for easy configuration of e-mail, push to talk and video sharing
  • Data transfer application for transfer of PIM information from other compatible Nokia devices
  • WLAN wizard

Connectivity
  • WLAN IEEE802.11 b/g with UPnP support
  • USB 2.0 high-speed through micro USB connector
  • Bluetooth wireless technology 2.0 + EDR
  • Nokia AV connector 3.5mm
  • Nokia Nseries PC Suite connectivity with USB, and Bluetooth wireless technology
  • Local synchronization of contacts and calendar to a compatible PC using connection
  • Remote over-the-air access to your home content with ORB
  • Automatic synchronization with Home Media Solution
  • Send and receive images, video clips, graphics, and business cards via Bluetooth wireless technology

* The service is available free of charge, although any data transferred over the network will incur charges from your network operator. To check the availability and cost of the service, contact your network operator or service provider.
Video :-

RealPlayer media player
  • Full-screen video playback to view downloaded, streamed or recorded video clips
  • Supported video formats: MPEG-4, H.264/AVC, H.263/3GPP, RealVideo 8/9/10, Flash 3.0
  • Up to 30 fps (frames per second) playback
Sales Package Contents :-

Standard Sales Package Contents
  • Nokia N78 (including Nokia 2GB microSD Card MU-37)
  • Nokia Battery BL-6F
  • Nokia Travel Charger AC-5
  • Nokia Music Headset HS-45/AD-54
  • Nokia Connectivity Cable CA-101
  • User guide
  • Quick Start guide
  • DVD
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Thursday, November 20, 2008

Digg Source Code has a "Secret Message"


Nowadays Digg is popular amongst the bloggers .Recently I came to know about this, the homepage of Digg contains a "Secret Message". This secret message is in the source code of the Home Page of the website in the form of a comment at the very bottom .After analyzing the code it seems that some physics-lover has worked on the code of the website.The message is :::




< !-- digg is done serving you. 2.01355321270u 137.03599911 6.6742x10-11m3kg-1s-2 6.6742x10-11m3kg-1s-2 -->

This line is a comment and thus not visible on the website but can easily be seen in the source code of the homepage.These are not just random numbers but are a result of very smart physics work done at the Digg labs.
What is the significance of these numbers ? Take a guess (Hint :: Relate these numbers to physics)...


OK,here is the answer.....

  • 2.01355321270u :: This is the atomic mass of the hydrogen isotope known as Deuterium.
  • 137.03599911 :: This is a complicated one and really a geek in physics can figure this out.This is Inverse of the Sommerfield fine-structure constant.
  • 6.6742x10-11m3kg-1s-2 ::The last two numbers are the same.This one is very easy to guess and is known as The Gravitational Constant(G).
The numbers represent Deuterium, Inverse of the fine structure constant, G, G.
After the analysis what we get is ::
2.01355321270u :: D
137.03599911 :: I
6.6742x10-11m3kg-1s-2 :: G
6.6742x10-11m3kg-1s-2 :: G

Finally , the secret message is DIGG !!.
Ohhk..someone at Digg is crazy or should i say a geek who came up with this crazy idea of encrypting "DIGG" as such a weird figure so that no one figures it out easily thereby getting them involved into this puzzle. What you say!!.


Links to Check::
Digg Home Page
Hyperevo
Wikipedia (For physics related information)

Technogarage
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Monday, October 20, 2008

Prevent PenDrive Virus

Nowadays Most Common medium for Virus are PenDrive . Following steps help to prevent PenDrive Virus .



1) Disable autorun/autoplay function of your pen drive.

2) Now plugin your pen drive and open any folder of your computer.
(Do not open any folder from ur pen drive.)

3) Now goto tools then select Folder Option .
In that box mark the Show Hidden Files & Folders option.
Also Uncheck Hide Extension for known file types & Hide Protected OS files.

Now click apply and ok buttons and close that folder.

4) Nome come to Desktop.
On the Desktop, click on windows Start button and select Search for files & folders.

When the search dialog box appears on the screen, in that click on All Files & Folders, now click on More Advanced Options then select search Hidden files & folders.

Now go above & in Look In option, select your pendrive letter .
(For example E: Or G:) and hit Enter.

5) Now if you see any unknown .Exefiles, simply delete them all.

I hope this Tip give you some relax.
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Wednesday, October 15, 2008

Crazy Typewriters

Imagination have no boundaries and people ready to experiment can take their creativity to another level.Recently while surfing the net I came across this post on some site,what drew my attention was the work of Mr.Jeremy Mayer who collects antique typewriters, not to display them but to break them into small components and then combine them into some amazing sci-fi-inspired bugs, skeletons and human figures.
Mayer, who describes his work as a cross between Leonardo da Vinci's mechanical drawings and the gritty futures imagined by sci-fi maestros William Gibson and Philip K. Dick, assembles his artwork without welding, soldering or gluing.












Amazing Isn't it!!
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Monday, October 13, 2008

The Great Zero Challenge

In order to permanently delete data the only way is to destroy the hard drive ?Can we save the Hard Drive for future use destroying permanently the data?Can we recover data from a hard drive that has been overwritten with zeros once?
This is what The Great Zero Challenge is all about.It starts with the line::

It is noble and just to dispel myths, falsehoods and untruths

The challenge is organized by a firm in US named 16 systems and any established, professional data recovery company within USA can participate.Data recovery companies were contacted and the response of one of them was
According to our Unix team, there is less than a zero percent chance of data
recovery after that dd command. The drive itself has been overwritten in a very fundamental manner. However, if for legal reasons you need to demonstrate that an effort is being made to recover some or all of the data, go ahead and send it in and we'll certainly make an effort, but again, from what you've told us, our engineers are certain that we cannot recover data from the drive. We'll email you a quote
.

And the website quotes-As of September 6th, 2008 the challenge stands unaccepted.Check out the details of the challenge.
The organization (16Systems) have used a new Western Digital (WD800JB) 80GB hard drive with a default initialization and NTFS format from within Windows XP.They have used a Unix dd command using /dev/zero as input to overwrite the drive.You don't actually have to recover any more data to win the challenge, just tell them the name of one of the two files or the name of the one folder that existed in this screen shot before the dd command was executed.
The prize money is mere $500.00 USD (if the challenge is won) but the challenge should be accepted as they say "to dispel myths" because many people believe that in order to permanently delete data from a modern hard drive that multiple overwrites with random data, mechanical grinding, degaussing and incinerating must be used thus lots of good, usable hard drives are ruined in the process.
for more information check out this link ....
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Monday, October 6, 2008

Trojan Horses::The Virus!!

Trojan Horse in History




The term comes from the a Greek story of the Trojan War, in which the Greeks give a giant wooden horse to their foes, the Trojans, ostensibly as a peace offering. But after the Trojans drag the horse inside their city walls, Greek soldiers sneak out of the horse's hollow belly and open the city gates, allowing their compatriots to pour in and capture Troy..

Trojan Horses





Back to the "modern" Trojan Horses. They're pretty much the same: invisible to the naked eye; appear within harmless programs; require some form of user/operating system intervention to activate; and they do something unexpected by surprise. This article is just to convey a basic principle about the design of Trojan horse programs.

Trojans are designed to access permissions and exploit resources. The goal of password snatchers is to securely leak the login/password pairs to the Trojan author, and the goal in kleptographic attacks is to securely leak private keys to the attacker.

Nature of Trojan Horses

There is no "real" definition of a Trojan horse. It all depends on the perspective of the user that runs into it. From the perspective of a hacker (generally black-hat hackers), a reboot monitoring Trojan (useful in making sure no one used your machine) is not a Trojan to him/her since the hacker knows what it's about. From a law enforcement agent or people like that, it is a Trojan since the agent doesn't know it's there.

There are two examples of Trojans. One is a Trojan that is nothing more than a bug. Don't think that's a good thing. This bug could be bad enough that when planted properly, a Trojan author can break into the computer system. The second Trojan is a mathematical one. The statistical distribution of the output of a random number generator is affected so that it makes the generator very sensitive to the input entropy (I will not go into detail in this, please Google if you do not understand this [:)].

Trojan Horses in a text editor

An example of a text editor being used as a target for a Trojan horse:

If there was an installed text editor on a multiuser operating system which cannot be deleted or modified by the users themselves, then this program has certain unique privileges. For instance, It can access all the text files that users create or open. This would be the perfect target for a Trojan horse. When the Trojan is installed on this program, it will store data from users and makes the data accessible for the Trojan horse author.

Salami Slicing

There was once an article describing a Trojan horse attack that was intended to achieve money. This was carried out by an employee of a bank. He managed to get 70 000$ by taking a few cents from every account, and transferred it into his own account. It got the name of salami slicing because small amounts of money were taken from a lot of accounts. It's pretty useful to prevent anyone from noticing any drastic changes. The bank Trojan had access to money therefore the Trojan steals the money. Therefore, a text editor has access to documents so the Trojan steals the documents (pretty simple isn't it?).

Password Snatching

Every hacker would love to steal login/password pairs (referring to black-hat hackers). Password-snatching programs are installed when a system is infiltrated. These programs are also called rootkits. They were probably written in DOS terminate and stay resident programs (TSR). They record all keystrokes entered via the keyboard and patch the operating system hardware interrupt for key presses and log them to a file.

It is best if a password-snatching Trojan is hosted in a program that could access the passwords of users, like the UNIX "passwd" program. It verifies the identity of UNIX users by checking the login/password pairs. One could copy the Trojan to the end of the passwd program, or one could modify the source code for the password program, recompile it, and then install the compromised version (only if the root access is possible).

However, if the source code for the passwd program is updated and the administrator compiles a new version of it, then the attack would fail. So it would make sense to install a Trojan horse into the compiler which will increase the percentage of success of the attack. But if the compiler is recompiled, then the code that secretly inserts the Trojan into the passwd program would be gone.
______________________________________________________________________

There's not much left for me to explain. But one more thing for you to see :

Ken Thompson described an involved Trojan horse attack.

CODE :
compiler(char*s)
{
...
}


This is a figure of a normal compiler (ANSI C notation) (I did not create this)

The parameter s is a pointer to a string that contains the source code. The idea is to insert a source level Trojan horse into the source code of the compiler that checks for two patterns in the string s.

The first pattern is source code corresponding to the password verification program. When it is found, the password-snatching source code is added to the program before it is compiled. But the Trojan is not saved to the source file of the password program.

The second pattern is source code corresponding to the compiler. When it is found, the entire compiler Trojan is included in the compiler source code. It will contain all of the source code for the Trojan which is marked by the "if" statements in this following figure.

CODE :
compile(char*s)
{
if (match)s,pattern1) ==true)
{
compile(trojan1);
return;
}
if (match)s,pattern2) ==true)
{
compile(trojan2);
return;
}
...
}


Figure of a compiler with Trojan (ANSI C notation)(I did not create this either)

Whenever the compiler is compiled, the Trojan copies itself into the source file for the compiler. It can be added to the source for the compiler then the compiler could be recompiled, and the old compiler could be replaced. This would remove all traces of the source code for the Trojan attack. It would remain in binary form, integrated with the compiled instructions.

So Thompson's Trojan horse attack exploits the capabilities of its host. For example, it exploits the fact that compilers are used to create programs such as the passwd program and the compiler itself.
Also, it exploits the fact that the passwd program has access to login/password pairs and that the compiler has access to them as well by transitivity.

Yeah... I believe that this is okay to be an overview of Trojan horses.
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Ankit Fadia Certified Ethical Hacker

This post is dedicated to those who want to become ethical hacker , you can be trained and

certified by computer security guru Ankit Fadia himself. AFCEH or “Ankit Fadia Certified

Ethical Hacker” course is a certification program on computer security. It is a computer

security course that helps IT security professionals protect internet enabled computer

security systems against cyber security threats and hacking. It helps people become more aware

about cyber crime and IT security measures to counter it.


They say the first five batches of this course were sold out with 5000 participants from 91 cities

across India and now courses have been started in Malaysia, Vietnam, Singapore, Thailand and

China. This training and certification program is exclusively available at Reliance

WebWorld outlets in over 100+ cities across India. You can contact them for the next course details.


All training material for the course including live video lectures, video recordings, video

workshop demonstration, online study material, books and online exam will be prepared by

Ankit Fadia. Remember AFCEH certification is valid for two years only and you need to

retake the examination to renew your certification later. I checked the Registration Fees are

Rs.6499 and you will receive free copies of Ankit Fadia’s 6 internationally best selling security and hacking books.


Buy The Unofficial Guide to Ethical Hacking, Second Edition

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Wednesday, October 1, 2008

Move your Mouse cursor without Mouse !!

Control your mouse pointer with keyboard keys in all windows versions. When your mouse stops working, you can enable this keyboard feature to complete your important work. This keyboard mouse can performs all tasks same like a normal mouse.

Follow the given steps to activate the keyboard mouse:

To edit this feature, first you should log onto your computer with administrative rights.
To activate this feature, press Alt+Shift+NumLock keys at once and you will receive a small MouseKey box.



To keep MouseKeys on, click on Ok button or click on cancel button to cancel MouseKeys box.
Click on Settings button, if you want to adjust the mouse cursor detail settings.



Here a new dialog box will appear with the title "Settings for MouseKeys", now you can manage all mouse settings for example mouse cursor speed, acceleration and some other features.

Now using Numeric keypad, you can move your mouse pointer. The controls are:

* 1,2,3,4,6,7,8 and 9 keys are used to move the mouse cursor into different
direction.
* Key 5 is used as mouse click button.
* Insert key used to hold down mouse button.
* + Sign used to double click on any object.
* Delete button used to release the mouse.
* Click on NumLock button to disable this keyboard mouse feature.

or apply above setting by following steps:-

* Start -> All program -> Accessories -> Accessibility -> Accessibility Wizard.
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Eliminate the needless visual effects for better windows performance

Increase the performance of your computer by eliminating the needless visual effects. By default windows XP gives you many options in the graphics fields to enjoy maximum graphics. For example, you can add pictures on folders and drop shadow on icon to give you better look but it will effect on the performance of your computer, especially on an older computer. Window XP has many default graphics which is not so useful for a common user, if you re-adjust these graphics then there is less effect on the user activities but the performance of computer will be increase tremendously. Here I will tell you how to choose:
To edit these settings, first you should log onto your computer with administrative rights.

Click Start button and type sysdm.cpl in Run box then press Ok button for next.


Here a dialog box will appear with the title "System Properties", select "Advanced" tab.


Here click on Settings button under Performance area.


When you have done then "Performance Options" dialog box will appear with different options. Here select the Visual Effects tab and choose the settings you want to use for the appearance and performance of windows on this computer.

Turns off all the visual effects in the option of "Adjust for best performance" and when you select the option "Adjust for best appearance" it will gives you opposite effect ,Everything will turns on. Selecting "Let Windows choose what's best for my computer" triggers, as you might guess, different choices on different computers. And to pick and choose individual effects yourself, choose "custom" then decide which ones you want.


press OK.
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Sunday, September 28, 2008

How to enable the advance performance setting in windows vista?

If you have noticed that the speed of your system is very slow with windows vista then today tip is very useful for you to increase the performance of windows vista. There is some default setting in vista which is used to manage the write caching on disk. By default windows enabled the write caching on disk but the advanced performance setting is disabled.

Follow the given steps to configure the advance performance setting in Windows Vista:

To enable this feature, you will need to be logged into your computer with administrative rights.

First right click on My Computer icon then select the option Manage.

Here small windows will appear with title Computer Management, now select the Device Manager option, then locate the SATA Disk under the Disk Drives.

Here select the enable advanced performance sittings on the SATA disk.


Now click on Ok button to apply the setting and restart your computer after any changes to go into effect.
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Saturday, September 13, 2008

Integrated Circuit :: Celebrating half centuary

The integrated circuit is 50 year old today(12 september 2008). It’s half a century since the first integrated circuit was demonstrated by Jack Kilby at Texas Instruments Jack Kilby's first integrated circuit

If it wasn’t for the invention of the integrated circuit, then computers today would probably be housed in huge mahogany cabinets with a baffling array of polished, brass valves, or at least be stuffed into huge boxes containing hand-soldered transistors. We owe a lot of thanks to the integrated circuit, or microchip, which is today celebrating its 50th birthday.

The first microchip (pictured) was first demonstrated by Jack Kilby from Texas Instruments on 12 September 1958. It might not be much to look at, but then Texas Instruments admits that Kilby often remarked that if he’d known he’d be showing the first working integrated circuit for the next 40-plus years, he would’ve ‘prettied it up a little.’ The chip worked, though, producing a sine wave on an oscilloscope screen at the demo.

The integrated circuit itself is the germanium strip that you can see in the middle of the glass slide, and it measured 7/16in by 1/16in. With protruding wires, and just containing a single transistor, some resistors and a capacitor, it’s a primitive chip by today’s standards. However, it opened the gate for mass production of larger-scale chips that could contain more and more transistors without the need for complicated hand-soldering jobs.

This was a major factor when it came to using lots of interconnected transistors, and in 1958 Texas Instruments was researching a new idea called the ‘micromodule,’ in which the components of a circuit all had the same size and shape, but still didn’t address the problems concerning high numbers of transistors.

In July 1958, Kilby took it upon himself to find the answer to small-scale modules with large numbers of transistors. As a new recruit at Texus Instruments he wasn’t able to take a two-week leave while his other colleagues were off sunning themselves. Instead, he confined himself to his lab alone where he came up with the idea of fabricating all of a circuit’s components with a single block of the same material. Two months later, the first integrated circuit was demonstrated, and technology has never looked back.

Kilby also kept very detailed notes on all of his work. He later went on to develop the first handheld electronic calculator at Texas Instruments in 1967, and racked up a prestigious et of awards, including the Nobel Prize in physics, the National Medal of Science and the National Medal of Technology.

To mark the occasion, Texas Instruments has recreated the original lab where Kilby worked on the first integrated circuit at its HQ, which it hopes ‘will inspire future inventors and serve as a visual reminder of the power of science and technology combined with creativity.’ The company has also contributed to a fund to put up a statue of Kilby in his hometown of Great Bend, Kansas.


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Wednesday, September 3, 2008

Chrome - The Internet Explorer Killer ???

Chrome to Google is what Internet Explorer to Microsoft. Yes, you are right. Chrome, a web browser, is the newest google product intended, as people might say, to compete with Microsoft’s Internet Explorer dominance.

Some of the interesting points of the Chrome browser include:
  • A new UI that places the tabs above the address bar, instead of the traditional way
  • Incognito mode, which will allow you to browse the web in complete privacy, without recording any of your activity.
  • A new JavaScript engine to speed things up
  • They've even put up a web comic to provide users with additional information regarding Chrome.
Can Chrome do it? The more important thing for us, the users, is not about which’s winning what . Having more options to browse and hence, as Google says, to “add value for users and, at the same time, help drive innovation on the web” is a lot more substance.

This is what some bloggers say…

The software will be seamlessly integrated, and it will make Google’s (and other) online apps, games, etc. richer and simpler to use, especially if/when you’re offline. It will feature a Google search window (and, unlike Microsoft, Google won’t get in trouble when it sets the default to Google). It will be capable of running directly on any device without Windows. Unlike Windows, it will be free. And it will come pre-loaded–just like Windows–because who really wants to bother with downloadin.

download google Chrome from here.
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Friday, August 29, 2008

MICROSOFT product ..without any bugs ??

Hellozz.. friends I have received a mail from my friend saying the above picture is of Bill gates's daughter. You all must be very curious of the above statement and some of you might be familiar with this photo recently.
I had actually do some research and surfing online to find out the truth.


I got a link (http://www.nndb.com/people/435/000022369/), i came to know that gate's eldest daughter was just 12 years old! and her name is Jennifer Katherine and was born on 26-Apr-1996.When gates had married he was 39 years old .

Bill Gates children is:

* Jennifer Katharine Gates, his daughter born in 1996
* Rory John Gates, his son born in 1999
* Phoebe Adele Gates, his daughter born in 2002

Now question rounding in my mind is who is this girl........?

If anybody knows just write a reply in my blog....:)


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Thursday, August 21, 2008

The Cyberspace War

AS the violence unfolded between Russia and Georgia during the past week, hackers waged war on another front: the Internet.
The Georgian government
accused Russia of engaging in cyberwarfare by disabling many government Web sites, making it difficult to inform citizens quickly of important updates.
Russia said : it was not involved and that its own media and official Web sites had suffered similar attacks. although a cease-fire has been ordered, major Georgian servers are still down, hindering communication in the country.
Some Georgian officials, bloggers and citizens
were able to work around the disruptions,
sending text messages to friends in other countries using web sites hosted by US servers that are less likely to fall victim to a cyberattack

http://www.wowmails.com


Concerted online attacks have been a threat for years.
But security experts say the
"cyberwar" between Russia and Georgia underscores the havoc that can spread on a digital battlefield. It also highlights how vulnerable Web-reliant countries are to assaults that could cripple military communications or a national banking industry.

http://www.wowmails.com

The attacks against Georgia's Internet infrastructure began nearly two months before the first shots were fired, according to security researchers who track Internet traffic into and out of the countries. Such attacks, known as "denial of service" attacks, are triggered when computers in a network are simultaneously ordered to bombard a site with millions of requests, which overloads a server and causes it to shut down.

http://www.wowmails.com

"In terms of the scope and international dimension of this attack, it's a landmark," said Ronald Deibert, director of the University of Toronto's Citizen Lab, which has nearly 100 researchers mapping Web traffic through several countries, including Russia and Georgia. He said smallscale attacks have occurred between the countries since June.
"International laws are very poorly developed, so it really crosses a line into murky territory .. Is an information blockade an act of war ?"

http://www.wowmails.com

Cyberattacks can be launched cheaply and easily, with a few hundred computers and a couple of skilled hackers.Simpler tactics are even easier to mount by hacking into a server and deleting files, reconfiguring settings and altering photos. Compared with expensive military attacks, cyberwar tactics "seems like the kind of thing that a sophisticated military would want experiment with ," said Ben Edelman, assistant professor at Harvard Business School who has studied cyberattacks.

http://www.wowmails.com

"Imagine how devastating it would be to a military commander
to lose access to a server that tells him where his troops are stationed and where he has resources," he said, adding that "this is the first time we've had such strong evidence of cyberwarfare. "
Instructions on how to mount such attacks are readily available on blogs, making it easy for a grass-roots effort to quickly escalate into a crippling assault.
Figuring out who is behind the attacks has been difficult, Deibert said, because of complex routing methods and a multitude of connection exchanges. The Internet's infrastructure is a maze of lines laid by different service providers traversing many countries, masking how information is traveling — or blocked. 'It's an ongoing battle in documenting where it's coming from and helping people get around it," he said.

http://www.wowmails.com

In Georgia, which is not as dependent on the Internet as other nations, the cyberattack mainly hindered the government's ability to communicate with its citizens and others during the fighting. The Georgian Foreign Ministry's Web site, for example, was disabled except for a collage that compared Georgian president Mikhail Saakashvili with Adolf Hitler.
To get around the blockade, Georgian officials relocated national Web sites to addresses hosted by Google's Blogspot, whose US servers are more immune to attack. Citizens used blogging platforms such as LiveJournal — the dominant platform in Russia and Georgia — to post their own reactions during the fighting.
For example, a Georgian refugee from Abkhazia who blogs under the name Cyxymu on LiveJournal, posted photos of Russian troops entering the Georgian town of Gori.
The blogger said the photos were taken after Russia had announced its withdrawal,
proving, he said, that fighting continued.

http://www.wowmails.com

Morozov said only a few hundred Georgians used blogs to communicate with people outside the country. Even that tool was threatened, he said, when a group of Russian bloggers sent a letter to Sup, the Russian company that owns and manages LiveJournal,
to censor posts with pro- Georgian sentiment. Sup did not comply. The cyberwar will most likely serve as a Web security wake-up call, Morozov said."Georgia was completely unprepared to the fact that all this information was on the Internet," he said. "I think it taught them — and a lot of people — a lesson."
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Sunday, August 17, 2008

WHO THE HELL IS SHE ????

India celebrated 61 independence day and we are thrilled that India grown up and so peoples,
But...these pictures I got through mail shows the gross disrespect and insult to the Indian National flag by this so called 'spiritual leader' and self proclaimed 'GOD' Mataji Nirmala Devi. this disrespect to our country's flag shows that she has definitely no respect or love for the country that gave her so much and her husband who was an IAS officer and chief of the SCI (he is seated next to her in he pics)... such as shame.






Is really India grown up ?????????
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