How interesting to encrypt the data and decrypt another (QR code)

QR code

Have you ever wanted to encrypt information, for example, a message to a friend?

This can be done in a simple way, and to decipher even easier)))

You will like it!

You can encrypt text, links, phone numbers, contacts, or to make a creative card.

Instruction

Difficulty level: Easy

What you will need:

Internet

Computer

Mobile phone

step 1

So, let's start. QR code is an intricate picture that can be decoded conventional mobile phone with a special program. Such codes are very easy to use. For example, as I mentioned, you can do a bunch of business cards without text, but with the picture code. It will look stylish). You can hide links to your website, etc.

Heard (read) that in Japan they are already printed on the goods so that you can learn about the product all at once!

2 step

When we at least know something about the code, you can proceed to action). First you need to turn the text (or something else) in the cipher. This can be done by using a QR code generator. This and that I use, but on the Internet there are a couple of other generators, but these are probably the most convenient. I will tell you the example of KAYWA QR code (the first link). Go and get to the page with two fields. Right field is used to enter the information above it is a row to select the type ( URL , text, phone number, etc). Below the input field to be a string select the size of the QR code. From the smallest (S) to large (XL). The text is limited to 250 characters. And on the left there is a field code generation. Fill in the fields for the information, select the size (recommend S ) and click Generate! . On the left we get the picture, save it on your computer. All! QR code is ready! Now can do with it whatever you want, whether it's staying in blogs, forums, and even in the comments on AAS!!! How to do this can be found here starting with the 3rd step, but keep in mind, to get Direct link you need to register. But if you don't for AAS, you can view this manual is not necessary. And you can just print out and send a secret message to someone else without saying that as a Yes, and look at his reaction.

3 step

Well, let's get to the breakdown). There are many different programs for this, but I use the official free Kaywa Reader for Samsung S 5230. it can be downloaded at the same site by clicking at the top of the page Kaywa Reader (tab after tab ID and before Feed2mobile ) there, I think, will understand. This program, of course, you can not download from the official site, but simply with the Internet or look for other programs. Here:

for Windows Mobile: QuickMark, I-Nigma;

for Symbian OS: Kaywa reader, Nokia barcode reader, I-Nigma, QuickMark, UpCode;

for Apple iOS: QR Reader for iPhone, Bakodo Barcode Scanner and QR Bar Code Reader, AT&T Code Scanner;

for Java: Kaywa reader, I-Nigma, UpCode;

for Android: Barcode Scanner, Barcode2file, QR Droid, NeoReader, ixMAT Scanner 2D code;

for Maemo: mbarcode.

The list here http://ru. wikipedia. org/wiki/QR-kod.

Program for Java Kaywa reader is very simple. You need to point the camera at the code and press OK, the Program will show all encrypted in it. But it requires an Internet connection on the phone to read the code, however, she is not eating exorbitant amounts from the account) moreover, almost all now have free Internet on your phone :). Try other programs, they may not require Internet connection. Good luck =)