
For details on AES encryption method, please refer to from Wikipedia. Then I tried it against my own zipped file and it. I read the ReadMe file and followed the instructions by downloading 7za910.zip and extracting and placing 7za.exe into the 7z Cracker folder and executed it, and it cracked and found the password for the testfile.7z as 123 in 4.5 seconds. In particular, encrypted files can be deleted from a Zip file, or renamed within a Zip file while new, unencrypted files can be added to a Zip file without a password. I disconnected my PC from the internet before running it. 7-Zip uses password-based encryption, and even a strong encryption algorithm like AES is of little or no benefit if the passwords you use are weak, or you do not keep track of them in a secure manner. To open the file, you will need to provide the password. Now the file is encrypted with password. Then enter your password (We highly recommend to set password with more than 8 characters which consists of alphabets and numbers), and choose the "Encryption method" you prefer. Make sure to choose " zip" for the archive format. Then right click the selection and choose " 7-Zip" -> " Add to archive." from the menu.
Select the file(s) you need to compress.To setup a password for ZIP file, please follow the steps below (screen capture based on 7-Zip): The contents of the files that you want to protect are encrypted based on a password that you specify. 7-Zip's encryption facility protects sensitive documents from unauthorized viewing.