Encryption skills for text messages
First, the old method: let the text hide in the file
In fact, this method has been circulating for a long time, but the effect is very good. This method is suitable for hiding a large number of files, such as EXE executable files, MP3 music files, the most classic is the use of image files (BMP or JPG). Its principle is very simple, is an addition synthesis, the text information that needs to be encrypted (previously saved in a TXT text file) is appended to the BMP image file. First create a new 1.txt file in the D drive, the content inside is the text information to be encrypted: then copy a picture file 1.bmp to the D drive, which is the "parent" of the text message; then execute "Start" â€â†’“Run†menu command, enter “CMD†and confirm to open the system command line window, input “d:†and press Enter to transfer to the D disk from the system directory; enter a COPY command: “copy1.bmp/b+ 1.txt2.bmp", after the carriage return, the system will prompt "1 file has been copied". The function of this command is to "add" the image file 1.bmp and the text file 1.txt to generate the third file. Bmp. At this point, you are done, if you double-click on the "My Computer" to open the image file containing the text information 2.bmp, the system will call the machine's view program to open, you see the original picture ( 1.bmp) The exact same picture, the only difference is that the file size is the sum of the image file 1.bmp and the text file 1.txt, and since the text file 1.txt is generally very small (kB level), Generally not aware of it.
Encryption is encrypted, then how to restore the content of the text file in 1.txt? Very simple, right click on the new 2.bmp file and select "Open Mode" → "Select Program", in the pop-up "Open Mode" After selecting the "Notepad" program in the window, the system will immediately call Notepad to open the image file 2.bmp. In the open Notepad window, 99% of the content in front is garbled, that is, the content of the original image file 1.bmp, drag the scroll bar to the end of the file, you will see the original text information. The advantage of this method is that it does not require third-party software and directly uses the COPY command that comes with the system. The disadvantage is that anyone can open the "new" image file by modifying the "open mode" method to call the notepad, and see the last one. Text information.
Second, the new move: let the text become a QR code
This time, you can't be unarmed. You need to use a small tool. The download address is http://SOFt/12982.html and the name is QRCode. After downloading and extracting, you will get a file PsQREditchs, which you can use after double-clicking.
The interface and how to use it are very simple. First click on the fourth tab "Text Info" below the selection, then enter the text information you want to encrypt in the input box (copy and paste of the software support text), enter the text In the process, you will find a strange black and white square figure in the blank space above. This is the so-called "two-dimensional code", and it will become more and more complicated and denser as the input text information increases. . After the text information is entered, click the "Encryption" option at the bottom of the selected window and enter the set password in the "Encryption Password" box above. Finally, click the third "Save Disk" button in the upper toolbar, follow the prompts to select the save path and name it, and you will get the password-protected encrypted information of the input text information. This file is a BMP bitmap file. On the surface, you can't see anything. It is a black and white rectangular block that can be sent to friends via email or QQ. Even if someone intercepts it, they can't see the text information hidden in it. After the friend receives the "picture", it runs the QRCode software to read it in, and enters the password set when the image was generated. This will restore the original text message.
Micro Data Line is a portable version of the Data Line 2.0 standard. The Micro data cable has a smaller interface than the Mini data cable used in some mobile phones, and is the next generation of Mini data cable specifications. This data line supports OTG and is 5PIN like MINI data line. Micro-usb supports OTG and, like Mini-USB, is also 5PIN. The definition of Micro series includes Micro-B series slots for standard equipment; Micro-ab slots for OTG devices; Micro-a and micro-B plugs, and cables. The Micro series is unique in that they include a stainless steel case that can be inserted and removed for 10,000 times. Compared with the Usb Cable Type C, the Type-C interface is plugable, but the Micro USB interface is not.
Micro-usb connectors are smaller and space-saving than standard USB and Mini-USB connectors, with up to 10,000 plug and remove life and strength, and a blind plug structure design. The Micro-USB standard supports the OTG functionality of current USB, that is, in the absence of a host computer (for example, a personal computer). Data can be transferred directly between portable devices, compatible with USB1.1 (low speed: 1.5Mb/s, full speed: 12Mb/s) and USB 2.0(high speed: 60Mb/s). Provides data transmission and charging at the same time, especially suitable for high-speed (HS) or higher data transmission, is the best choice for connecting small devices (such as mobile phones, PDAs, digital cameras, digital camcorders and portable digital players, etc).
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