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PeaZip is a free cross-platform file archiver and encryption tool that provides an unified portable GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX...
Create 7Z, ARC, BZ2, GZ, *PAQ, PEA, QUAD/BALZ, TAR, UPX, WIM, XZ, ZIP files
Open and extract over 180 archive types: ACE, ARJ, CAB, DMG, ISO, LHA, RAR, UDF, ZIPX files and more...
Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives, split/join files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export job definition as script.

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FAQ / DATA SECURITY > ENCRYPT THE LIST OF FILES INSIDE AN ARCHIVE
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Encrypt names of files inside archives



HOW TO PASSWORD-PROTECT THE ARCHIVE TABLE OF CONTENT

encrypt list of files inside the archive


How to password protect the archive table of content


Under some circumstances it can be recommended to encrypt the list of files featured inside an archive to hide it from unauthorized users, otherwise, even if the file data itself is encrypted, readable filenames can leak hints to attackers about the nature of the archive.

To prevent this kind of information leak and make archive table of content (TOC) unreadable without knowing the password, click on the padlock icon encrypt file to set a password (and optionally a keyfile) for the archive - the padlock icon can be found in the status bar, in the file/archive browser, or below the output field in the archive creation interface - and check "Encrypt also file names" option in the password dialog.

Support for this feature depends on the archive format design: it can't be added to formats lacking it by design, as enforcing it on the archive manager will let the attacker bypass it simply using a different software to list the archive's content.

Support of file names encryption in standards supported by PeaZip:
  • ZIP format lacks this feature, meaning this option will have no effect and archive TOC will always be readable before providing the correct password even if the data is encrypted
  • 7Z and ARC formats support encryption of filenames, so if this option is in use the archive content will be hidden unless correct password is provided for browsing it
  • PEA format, by design, will never display content of an encrypted archive until correct password is provided, and no option is provided to otherwise allow listing of password-protected files


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