Help
Bandizip in comparison with other archivers
How to use Multi-core Compression
How to use the Finder’s right-click menu for Bandizip
How to set Bandizip as the default app to open archives
How to open ALZ and EGG files on Mac
How to use Extract Here (Smart)
How to split a large file into smaller files with Bandizip
How to view a list of files in an archive
How to modify an archive without decompression
How to set a password for an archive
How to encrypt filenames in archives
How to preview image, document and music files in an archive
How to move files to Recycle Bin (Trash) when deleting
How to use the Password Manager
How to use Repair Archive
How to use the Password Recovery
Troubleshooting
How to troubleshoot when codepage auto-detection doesn’t work correctly
How to troubleshoot when Error 22 occurs and Mac Finder on Catalina can’t extract ZIP archive
How to troubleshoot when a split archive can’t be decompressed
How to troubleshoot when an extracted app file can’t be opened
How to troubleshoot when it takes too long to open archives
How to troubleshoot when a badge icon for files doesn’t appear in the Finder
How to troubleshoot when I can’t uninstall Bandizip
How to troubleshoot when I can’t install Bandizip on the App Store
How to request a refund for Bandizip that you bought from the App Store





〈 Help

How to use the Password Recovery

NOTE

This feature does not guarantee that it may recover all types of passwords. Refer to the following for more information.

Bandizip Password Recovery

If you lose your archive’s password, this feature may recover the password by using a brute-force search.

For example, if your password is a four-digit number, you may find it by entering the 10,000 numbers (0000, 0001, 0002, 0003, …, 9999) one by one. Based on the same principle, a simple password (8 or fewer characters) can be found easily by trying every combination possible.

Bandizip Password Recovery supports optimization of an encryption algorithm and multi-core processing, which enables an ultrafast recovery. If an archive in ZIP format is processed with Intel i9 9900k, this feature handles 300,000,000 passwords per second.

How to use the feature

  1. Click Tools > Password Recovery… in the menu bar.


  2. Open an encrypted archive for the recovery and follow the instructions on the dialog box.


How long will it take to recover my password?

The amount of time required by your recovery depends on many variables. The archive’s format, the encryption algorithm, the length of the password, and types of characters used in the password may heavily influence the estimated recovery time.

Estimated recovery time

If an archive in ZIP format is processed with Intel i7 to recover its password using digits and lowercase alphabets… (Processing speed: 150,000,000/sec)

  • Password of 1~7 characters: less than 10 minutes
  • 8 characters: ~5 hours
  • 9 characters: ~8 days
  • 10 characters: ~280 days
  • 11 characters: ~27 years
  • 12 characters: ~1,001 years
  • 13 characters: ~36,060 years

Limitations

  • This feature supports ZIP, ZIPX, RAR, 7Z, EGG, and ALZ formats.
  • This feature does not support RAR and 7Z archives with encrypted file headers. (If a filename in the archive is encrypted.)
  • This feature requires a much longer time to recover RAR and 7Z archives because of their AES encryption.
  • This feature does not support GPU computing.

Samples

The following are sample files for testing this feature. The password of each archive is included in the archive’s name.