Decrypt the QR code without a scanner - how it works
You can find QR codes almost everywhere these days. In this article we explain how you can decrypt the QR code by hand without a scanner.
Decrypt the QR code without a scanner
QR codes can also be easily decrypted without a scanner. We'll show you how in a little more detail in the picture gallery at the end of the article. This is what the individual elements of the QR code stand for:
- The three patterns in the corners are called orientation patterns and are used to identify the orientation of the QR code.
- The three patterns that are vertical between the orientation patterns tell the scanner how big the QR code is.
- Information about the format and error correction can be found at a distance from a field to the orientation patterns.
- In this area you will find a sub-area that provides information about the mask used. In this case, the pattern says that every third column, starting from the right, must be inverted.
- Then you can see the information of the QR code in binary form. Black stands for 1 and white for 0. The decoding takes place according to a certain pattern.
- The block of four at the bottom right provides information about the coding. In this case there is an 0100, which is a byte coding. An ASCII table is therefore required for decoding.
- The next large block represents the number of characters that need to be decoded. In this case, the number 00001000 is here, which corresponds to 8 as a decimal number. You can leave out any excess blocks.
- The third block is also the first character. Start writing down the binary codes here and then translate them into letters and characters using ASCII.
Did you decrypt the QR code?
Resolution: In our example (see picture above) the word "Eureka!" encrypted as a QR code. You can read up on what the individual elements mean exactly in our picture gallery. If you want to create a QR code yourself quickly and easily, these tools will help you.
The next challenge is waiting for you here: We will explain to you in an easy and understandable way how quantum computers work.
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The three patterns in the corners are called orientation patterns and are used to identify the orientation of the QR code.
The three patterns that are vertical between the orientation patterns tell the scanner how big the QR code is.
Information about the format and error correction can be found at a distance from a field to the orientation patterns.
In this area you will find a sub-area that provides information about the mask used. In this case, the pattern says that every third column, starting from the right, must be inverted.
Then you can see the information of the QR code in binary form. Black stands for 1 and white for 0. The decoding takes place according to a certain pattern.
The block of four at the bottom right provides information about the coding. In this case there is an 0100, which is a byte coding. An ASCII table is therefore required for decoding.
The next large block represents the number of characters that need to be decoded. In this case, the number 00001000 is here, which corresponds to 8 as a decimal number. You can leave out any excess blocks.
The third block is also the first character. Finally, start writing down the binary codes and then translate them into letters and characters using ASCII.
