Future is Here.RFID Technology. MUST READ...!!

                                         

What Is RFID?

Radio-Frequency Identification is the use of radio waves to read, capture, and interact with information stored on a tag. Tags are usually attached to objects, and can be read from several feet away. Furthermore, the tag doesn’t always have to be in the direct line-of-sight to initiate interaction.

An RFID tag is an easy way to assign a unique identity to an object. Additionally, they do not need an internal power source, while a tag can be as small as a grain of black pepper. Meaning they are easily embedded almost anywhere — hence their popularity.

How Does RFID Work?

A basic RFID system comprises two parts: the tag, and the reader.

Tag

The RFID tag has an embedded transmitter and receiver. The actual RFID component contained in a tag has two parts: an integrated circuit for storing and processing information, and an antenna to receive and transmit a signal. The RFID tag has non-volatile memory storage, and can included either fixed or programmable logic for processing transmission and sensor data.
                              

Tags can be passive, active, or battery-assistive passive.

A passive tag is the cheapest option, and features no battery. The tag uses radio energy transmitted by the reader.

An active tag features an onboard battery, periodically transmitting its credentials.

A battery-assistive passive tag also features a small onboard battery, but is only activated when in the presence of an RFID reader.

Furthermore, a tag may be either read-only, or read/write. A read-only tag has a factory assigned serial number used for identification in a database, while a read/write tag can have specific custom data written to the tag by the user.

Reader

The RFID reader features a two-way radio transmitted-reciever (transciever), sometimes referred to as an interrogator. The transceiver transmits an encoded radio signal to interogate the tag. The radio signal essentially wakes or activates the tag. In turn, the tag transponder converts the radio signal into usable power, and responds to the reader.

                                 

Types of RFID System

We generally classify the type of RFID system by the type of tag and reader. There are three common combinations:

• Passive Reader Active Tag (PRAT): The reader is passive, only receiving radio signals from an active tag. Because the tag is battery powered, the transmit/reception range can be from 0-2,000 feet (0-600m). As such, PRAT is a flexible RFID solution.
• Active Reader Passive Tag (ARPT): The reader is active, transmitting an interrogator radio signal, receiving authentication signal replies from passive tags.
• Active Reader Active Tag (ARAT): The reader is active, and interacts with active or battery-assistive passive tags.

In addition to the RFID system type, RFID uses a set of regulated frequency bands. See the frequency band table below for an understanding of certain frequencies and their uses.

               

What is OPID?

Optical RFID (OPID) is an RFID alternative that uses optical readers. OPID operates in the electromagnetic spectrum between the frequencies of 333 THz and 380 THz.

How Much Data?

The amount of information stored on an RFID tag varies. For instance, a passive tag may only store up to 1024 bytes of information — that’s just one kilobyte (KB). Laughable in terms of modern storage capacity, but enough to store a full name, identification number, birthday, SSN, credit card information, and so much more. The aerospace industry, however, use passive ultra-high frequency RFID tags with 8KB storage to track part history over time. These could store a massive amount of personal data on.

Common RFID Uses

RFID tags are everywhere. Because they’re easily attached to almost anything, have no power requirement, and are potentially minute, they are used in all walks of life, including:

• Goods management and tracking
• Person and animal tracking
• Contactless payments
• Travel documents
• Barcodes and security tags
• Healthcare data management
• Timing

Security

The sudden surge in RFID has created security issues, too. Most recently, the advent of contactless payment cards featuring an RFID tag has come under scrutiny. Nefarious individuals were “skimming” payments from contactless cards using portable payment terminals, all while the RFID-enabled card resides in the targets pocket or wallet. If you’re worried about this type of fraud, check out Joel Lee’s run-down on RFID blocking wallets.
                              


In the U.K., another example involves RFID tags stored in passports. When first introduced, the encryption on the new U.K. passport was cracked within 48 hours. Additionally, reports emerged that criminals were stealing post containing a new passport, scanning the RFID tag for the data, and then sending them on their way.

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5 Reasons Why Java is one of the best Programming Language

 

Java is one of the best programming languages for development. The popularity and usage of Java are still increasing even after two decades which is a big time for any Programming language. There are only a few programming languages which seem hard to get replaced and Java is one of them.Here are 5 reasons why java is one of the best programming language.

Why is Java the best programming Language?

1. Object Orientation

Java is an object-oriented programming language that supports all principles like Data Abstraction, Encapsulation, Polymorphism, Overloading, Overriding, and Inheritance. Which makes it as powerful as C++. We all know C++ is the extended version of C programming. Thus, it makes Java better than C programming. 

2. Rich API

Another big reason to learn Java is it’s Rich API. Java provides API for almost everything you need in development like I/O, networking, utilities, XML parsing, database connection etc. Whatever left is covered by open source libraries like Apache Commons, Google Guava, and others.

 

3. Great collection of Open Source libraries

The big organisations like Apache, Google, and others has contributed to add a lot of great libraries, which makes Java development very easy, faster and cost effective.

4. Platform Independent and Free

In the 1990s, this was the main reason for Java’s popularity. The idea of platform independence is great, and Java’s tagline “write once run anywhere” was enticing enough to attract lots of new development in Java. This is still one of the reason of Java being best programming language, most of Java applications are developed in Windows environment and run in UNIX platform.

                           Java is free from the start, i.e. you don’t need to pay anything to create Java application. This FREE thing also helped Java to become popular among individual programmers, and among large organisations.

5. Wonderful Community and Documentation

There is Java community to help beginners, advanced and even expert Java programmers. Java actually promotes taking and giving back to community habit. Lots of programmers, who use open source, tester etc. The expert programmer provides advice FREE at various Java forums and StackOverflow. This is simply amazing and gives a lot of confidence to a newbie in Java.
Javadoc made learning easy and provide an excellent reference while coding in Java. With an advent of IDE, you don’t even need to look Javadoc explicitly in a browser, but you can get all information in your IDE window itself.

Final Notes

Java is everywhere, it’s on the desktop, it’s on mobile, it’s on a card, almost everywhere and so is Java programmers.
Integrated Development Environment (IDE) Like Eclipse and Netbeans made Java development much easier, faster and fluent. It’s easy to search, refactor and read code using IDEs.

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5 Android Apps to Learn Hacking

 

In our previous article, we have mentioned 10 best android applications for programmers. These Android applications can help you to increase your programming knowledge and coding practice. In this article, I am going to share top 5 Android applications to Learn Hacking from your mobile phone.
Many people are using smartphones for study purpose and there are many Android apps for that. When it comes to Learn Hacking from your phone, people do not have much knowledge to share.

Top 5 free Android apps to learn Hacking

 

1. Hacking Tutorials 2.0 (1 million+ installs)

Hacking Tutorial v2 is a step by step guide that explains various hacking techniques. This app presents tried and tested tutorials for beginners looking for a way into the hacking universe. This app shows you the easiest, most direct ways to safely perform a given hack, how it works, and most importantly how to protect yourself against them.

Features

• All hacking tutorials are guaranteed to work
• A Chatroom to discuss hacking with fellow learners
• Available Offline
• The latest technology and hacking news

 

2. Hacking Tutorials (100K+ installs)

The aim of this application is either to help people begin to learn about hacking or to see how hackers work, how they can attack and How to protect yourself. This app explains the every possible hacking technique and shows how to perform them.
It teaches you:

• Hacking Process, Types
• How to become Hacker
• Facebook Hacks and tricks
• Online websites Hacks and tricks
• Android mobiles hacks and tricks
• How to protect yourself against attacks

 

3. Hackers Reference (100K+ installs)

This app is the Best Information Security Reference on the Market! It teaches you:

• Building a honeypot
• Cracking WEP Encryption
• Introduction to Sniffing the Wire
• SQL Injection How-To
• Cross Site Scripting
• Web shells
• Lockpicking
• Scanning the Network & Enumerating Services
• Exploiting Services
• Maintaining Access
• Linux Post-Exploitation Cheat Sheet
• OS X Post-Exploitation Cheat Sheet
• Windows Post-Exploitation Cheat Sheet
• USB Device hacking
• Various Penetration Testing Methodologies

 

4. White Hat Hacking Tutorials  (50K+ installs)

Whitebook is a growing community of White Hat Hackers or so Called the Security Professionals, We Begin with tutorials and Techniques to become a Security Professional and Later Will Grow as a Community where with jobs updates, Project Updates, Support and everything related to Cyber Security to our user.

It Features: 

• Hacking Basics
• Common Hacking Tuts
• Vulnerabilities
• Security Standards
• Exploits And Exploitation
• BackTrack
• Advance Tools
• Cyber Forensics
• Security Management
• Tips and Tricks

 

5. Hack Hackers (50K+ installs)

HACK HACKERS is an extraordinary tutorial app that will save you from getting hacked and save your personal details from being misused.
It provides the knowledge of how to: 

• Secure your Wi-Fi password and Wireless Router
• Secure your IP address
• Prevent your FB account from being hacked
• Secure your email account
• Make up a password that is both secure and memorable
• Secure your WhatsApp chat
• Hacking precautions
• Precautions for hacked websites
• Secure a pen drive?
• Protect your private information on FB
• How to protect me when online Five Ways to Download Torrents Anonymously
• How to hide your IP Address?                    

 The source of information is technotification.com and for more queries you can comment us below.

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Database Connectivity using C/C++

SQL (Structured Query Language) is a fourth-generation language (4GL) that is used to define, manipulate, and control an RDBMS (relational database management system).

Before starting the main article, let us get familiar with the used tools.

1. Compiler: Code::Blocks IDE with MinGW compiler
   Download Link: Binary Download
   Code::Blocks is a cross compiler (It can run on any platform like Windows, Linux and Mac) and it is free to download. This IDE is specially designed for C and C++ and easy to use.
   
   
2. API: We are going to use SQLAPI++ Library
   Download Link: SQLAPI Download
   SQLAPI++ is a C++ library (basically a set of header files) for accessing multiple SQL databases (Oracle, SQL Server, DB2, Sybase, Informix, InterBase, SQLBase, MySQL, PostgreSQL, SQLite, SQL Anywhere and ODBC). It is easy to implement and simple.
   
   
3. OCCI: Oracle C++ Call Interface
   Download Link: OCCI C++ Download 
   OCCI is an interface defined by the database company ORACLE that defines a comfortable interfacefor the C++ programmer to access the Oracle database with classes using parameters that are reminiscent of SQL statements. The interface exists for ORACLE 9i, ORACLE 10 and comes with the Oracle.

We must download and install the above three (if we don’t have them). Now we are almost ready to start.

Some settings before starting:

-> Open the code::blocks IDE and go to or click on settings -> compiler and debugger settings (You will now see global compiler settings)
-> Now click on “Linker settings” in the linker settings click on ADD button and add the following
For Windows OS :

Code:

C:\SQLAPI\lib\libsqlapiddll.a
C:\Program Files\CodeBlocks\MinGW\lib\libuser32.a
C:\Program Files\CodeBlocks\MinGW\lib\libversion.a
C:\Program Files\CodeBlocks\MinGW\lib\liboleaut32.a
C:\Program Files\CodeBlocks\MinGW\lib\libole32.a
These will be found in your SQLAPI++ (If you have not extracted in C: drive then select the appropriate location and add the mentioned files to linker settings).
The above code is used to add library files to connect C/C++ program with SQLAPI.
Basically, there are 2 steps:


Connecting to database (and error handling)      
 
Code:

// C++ pgroram for connecting to database (and error handling)

#include<stdio.h>

#include<SQLAPI.h>         // main SQLAPI++ header

 

int main(int argc, char* argv[])

{

    // create connection object to connect to database

    SAConnection con;

    try

    {

        // connect to database

        // in this example, it is Oracle,

        // but can also be Sybase, Informix, DB2

        // SQLServer, InterBase, SQLBase and ODBC

        con.Connect ("test",    // database name

                     "tester",  // user name

                     "tester",  // password

                     SA_Oracle_Client); //Oracle Client

        printf("We are connected!\n");

 

        // Disconnect is optional

        // autodisconnect will occur in destructor if needed

        con.Disconnect();

        printf("We are disconnected!\n");

    }

 

    catch(SAException & x)

    {

        // SAConnection::Rollback()

        // can also throw an exception

        // (if a network error for example),

        // we will be ready

        try

        {

            // on error rollback changes

            con.Rollback ();

        }

        catch(SAException &)

        {

        }

        // print error message

        printf("%s\n", (const char*)x.ErrText());

    }

    return 0;

}

 

Output:-

            

We are connected!

We are disconnected!

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Artificial Mega Floating Islands... Must Watch.

It is one thing to come up with a wacky idea for transforming our cities or constructing the world’s greatest supervillain evil lair; another to have the expertise and inclination to actually research and build one for real. A new research project coming out of the Netherlands quite handily ticks both boxes. Developed by researchers at the Maritime Research Institute Netherlands (MARIN), their idea is to develop giant artificial islands like today’s floating docks — only on a much, much bigger scale. Like, several miles wide bigger.

And they may just pull it off, too.

“With the world’s increasing population there is not necessarily enough space in the cities, or close to the coast where a lot of people live and work,” Olaf Waals, project manager and the concept developer, told Digital Trends. “These are also areas that are susceptible to flooding with rising sea levels. We thought it was an interesting idea to look at the technical feasibility of building floating mega islands. There are lots of futuristic concepts out there for floating harbors, farms, or cities. We wanted to look at how realistic a proposition this actually is, and come up with a workable concept.”

Waals’ idea involves modular giant triangles which lock together to form sizeable land masses, up to 3.1 miles in width. At least in theory, it is a pretty nifty idea. Given that 70 percent of our planet is covered by water, floating mega islands offer a whole lot more space to play with. They could be used for housing and recreation, or for the generation and storage of sustainable energy technologies like offshore wind farms, tidal energy, and floating solar panels, or for floating farms for breeding fish and seaweed.

Right now, the MARIN team is busy running computer simulations and testing a physical scale model to try and better understand the environmental conditions such a mega island would have to contend with. These potential challenges involve working out how to develop structures that are strong and safe enough to withstand winds and currents; how best to connect them together and to the seabed; and the environmental impact a water-bound floating community would have on its surroundings.

With a consortium of around 20 companies and research institutes now attached, work on the project is set to continue for the next three years. And after that? Our childhood dream of a real-life Waterworld hopefully becomes a reality.

Is it too early to start an online petition to get Kevin Costner appointed as mayor of the first floating mega city? We think not!

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Google Life-Science Team to Release 20 Million Mosquitoes.

It may sound counterintuitive, but Alphabet’s life sciences unit Verily is releasing about 20 million mosquitoes in Fresno, California in order to fight Zika, the mosquito-borne illness. It’s part of Verily’s Debug Project, an initiative announced last October with the mission of reducing “the devastating global health impact that disease-carrying mosquitoes inflict on people around the world.” And now, Verily is launching Debug Fresno, the company’s first field study in the U.S. that will test a mosquito control method that involves sterile insect technique.

In essence, the 20 million mosquitoes Verily is releasing are all sterile males that have been treated with Wolbachia, a naturally occurring bacterium. The test is said to be the largest release of sterile male mosquitoes in the U.S. thus far. Over the next 20 weeks, these bugs will be released in two neighborhoods around 300 acres large. The hope is that when these sterile males mate with wild females, which can carry and transmit a number of diseases including Zika, dengue, and chikungunya, the resulting eggs will not hatch. Verily will determine the success of its test by comparing the adult population density and egg hatching of this particular kind of mosquito in the targeted neighborhoods to two control neighborhoods.

And don’t worry — male mosquitoes do not bite, so even though you might be seeing more of these critters around, you won’t be itching as a result.

Linus Upson, a senior engineer at Verily, told the MIT Technology Review that this could ultimately become a cost effective way to control mosquito populations, and get rid of diseases (though he didn’t say how much exactly this experiment actually costs). “If we really want to be able to help people globally, we need to be able to produce a lot of mosquitoes, distribute them to where they need to be, and measure the populations at very, very low costs,” he said. “We want to show this can work in different kinds of environments,” he told the magazine.

Alphabet, the holding company in charge of Google, rebranded its Google Life Sciences team as Verily at the end of 2015, and said the team would move away from Google and become its own independent division.

So look out, Fresno. You may hear a lot more buzzing in the coming weeks, but rest assured, it’s all for good purpose.

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18 Useful CMD tricks You Must Know.

When you have such an attractive interface, using Command Prompt might seem like a old fashioned thing. When you can easily navigate to a location or access different settings in your PC customize them, why go for complex commands and a dull interface? Well, it might not be as bad as one might think. Command Prompt might be a bit complex, but it makes all the manual tweaking just a single command’s work. The current users of Command Prompt understand how powerful it is, which is why they don’t mind learning few tricks or commands to take care of daily work in a snap. So learning at least basics of Command Prompt is worth saving few seconds of extra work everyday.


We have created this list of Command Prompt commands and tricks that may help you work better. Whether you just started using Command Prompt or you are a regular user, you should be able to find a trick to ease things up a bit.

Some Useful Command Prompt Tricks

 

1. Get help on almost every Command

This is especially helpful for beginners, but advanced users may get to learn few things too. You can easily get info on almost every command you provide in the Command Prompt. Information includes complete details of what a command does and what process are used, it may also show some examples.
To get the help, just type “/?” at the end of the command of which you need info. For example, you can type “ipconfig/?”, and you will get all the info.

 

2. Use Function Keys

You can use function keys (F1, F2, F3, etc.) right inside command prompt and get different results. Below are the uses of functions keys in Command Prompt:

• F1: Pastes per character last used command
• F2: Pastes last used command only to a specified command character
• F3: Pastes Last used command
• F4: Delete command only to a specified command character
• F5: Pastes last used command without cycling
• F6: Pastes ^Z
• F7: Provides a list of already used commands (selectable)
• F:8 Pastes cycleable used commands
• F9: Will let you paste command from the list of recently used commands

 

3. Save a Command to a File

If you want to save results of a command to a .txt for future reference, then it is quite easy as well. All you need to do is add “> (destination/file name with .txt extension)” at the end of the command you are about to execute.

For example, you can type “ipconfig > c:\Networkdetails.txt”, this command will create a .txt file in C drive with name “Networkdetails”.

 

4. Copy Data from the Command Prompt

                             

Copying data from the Command Prompt isn’t just a Ctrl+C away, the process is actually different. It is not that hard, just right click anywhere in the window and click on “Mark” from the menu. After that, just select the text you want to copy and hit Enter to copy it.
Important Note: With Windows 10, Ctrl+C and Ctrl+V commands to copy/paste has been enabled in Command Prompt. So you don’t need to follow the above process, if you are using Windows 10. Also, In Windows 10 keyboard shortcuts for CMD are enabled by default which wasn’t the case with earlier version of Windows.

 

5. Cycle Through Folders

Specifying exact directories can be a bit frustrating task if you don’t have the destination copied. However, if you just know in which drive or folder the required folder is located, then you can cycle through all the folders to reach it. To do this, just type specified drive and start press TAB key on your keyboard to cycle through all the folders inside it.

 

6. Use QuickEdit Mode

                             

Command Prompt comes with QuickEdit Mode to quickly copy and paste content with just your right-click. In QuickEdit mode, you can highlight content and right-click to copy it or right-click in a blank area to paste content from the clipboard (if there is any).

To enable QuickEdit Mode, right-click on the top of the Command Prompt interface (where exit button is located) and select “Properties”. In the properties, check the checkbox next to “QuickEdit Mode” to enable it (you will have to disable it later).

 

7. Check IP address of any Website

                         

You can see IP address of any website just by entering “nslookup” command along with the name of the website. For example, you can type “nslookup beebom.com” to find its IP address.

 

8. Execute Multiple Commands

                       

You can easily execute one command after another by provide all the commands and putting “&&” between each command (may save some time). For example, you can type “ipconfig && dir” to execute both commands one after another.

9. Check Default Programs

                         

You can check which applications are used to open specific types of programs. For this purpose, just type “assoc” in the Command Prompt and hit enter. You will see all the extensions and their associated program that opens them written next to them.

 

10. Get PC Drivers List

                           

You can open list of all the drivers installed on your PC with just a single command. Just type “driverquery” in the Command Prompt and press Enter. After a short delay, you will see all the drivers installed in your PC along with, Name, Type and Link date.

 

11. Scan System Files

                          

The system files can also be scanned and repaired from the Command Prompt. Type “sfc/scannow” and press enter, the scan will start and may take quite some time depending on your PC speed (up to an hour may be). It will either automatically repair the files or let you know if there is a problem and provide its details.

 

12. Change Command Prompt Color

                            

You can also change command prompt color to make it look less dull and a bit easy on the eyes. To do so, right-click at the top corners of Command Prompt and select “Properties” from the menu. In the properties, navigate to “Colors” tab and you will find all the options to change color of both text and background.

 

13. Create Undelete-able Folders

                          

You can create undeletable folders using specific set of keywords. In the Command Prompt, type the name of the drive where you want to create the folder (it must not have Windows installed in it). After that, type any of these keywords “md con\” or “md lpt1\” and press Enter. So it should look something like this “D: md con\”.
This will create a folder with the same name that could not be deleted or renamed. To delete the folder replace “md con\” with “rd con\” or “md lpt1\” with “rd lpt1\”.

 

14. Get Network Details

                         

You can get quick network details, like IP address and subnet mask or Default Gateway with a single command. Type “ipconfig” and press Enter, you will see all the details of your network.

 

15. Hide Files and Folders using Command Prompt

                           

You can hide folder with the help of Command Prompt that cannot be accessed using the traditional hide feature of Windows. To do this, type the drive name where the folder is located and then enter this command “Attrib +h +s +r” and afterwards, enter the name of the file/folder you want to hide. So it should look something like this “D: Attrib +h +s +r haider”.
If the folder is inside another folder, then the command must come before the folder/file you want to hide not just after the Drive name. To again see the folder, use the same process above but change the command to “Attrib -h -s -r” from “Attrib +h +s +r”.

 

16. Compare Two Files

                          

You can also compare two text files in command prompt and see the difference. The results won’t be as good as third-party available file comparison tools, but it is worth a shot and fun do!
All you need to do is type “FC” command and then enter directories of both text files (the files must be in .txt format for proper working). For example, you can type “fc C:\haider\sample1.txt C:\haider\sample2.txt” and hit enter to get comparison of both files with answer such as, files are different or both files are identical.
In the above example, “C:” is the drive where text file is located, “haider” is the name of the folder in which the text file in located and “Sample1.txt” is name of the text file. Both files can be located anywhere in your PC, you just need to provide the right directory.
If both the files have different content then running this command will show the different content and if both the files have exact same content, the command will return this message ‘no difference encountered’.

 

17. Watch Star Wars Episode IV

                          

This is a really cool trick, although not productive, but fun to do. You can actually watch the famous Star Wars Episode IV right inside your Command prompt. It will be an ASCII version so don’t hope for a HD movie.
The process is simple, open Command Prompt and enter this command “telnet towel.blinkenlights.nl” and hit Enter. The movie will start automatically without any delay.
Note: Make sure Telnet is enabled in your PC, you can get information to install and enable Telnet from Microsoft website.

 

18. Create Wi-Fi Hotspot using Command Prompt

                              

You don’t need any third-party apps to create a Wi-Fi hotspot to share your PCs internet, you can easily do so from the Command Prompt.
In the Command Prompt, enter the following command to enable Wi-Fi Hotspot.
“netsh wlan set hostednetwork mode=allow ssid=Hotspotname key=password”
Once enabled, you can start the Wi-Fi  hotspot by entering the command “netsh wlan start hostednetwork” or stop it by entering the command “netsh wlan stop hostednetwork“.
You will also need to share your internet connection to this hotspot for everyone to use. Go to “Network and Sharing” option from the “Control Panel” and then click on “Change adaptor settings” in the left panel.
Here, right click on the internet connection you are using and click on “Properties“. In the properties, go to sharing tab and check the option “Allow other network users to connect through this computer’s internet connection” to share your internet connection.
Note: Using Administrator privileges for CMD is must to run this command otherwise it will show an error.

These CMD tricks will definitely help you understand Command Prompt in a better way. If you happen to know some other trick which is worthy of a mention in the post, let us know in comments section.

 

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