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PeaZip is a free cross-platform file archiver and encryption / decryption 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 > READ ENCRYPTED ARCHIVES
encrypted archive extractor

Open and extract encrypted 7Z RAR ZIP files



SUPPORTED ENCRYPTION STANDARDS

HOW TO EXTRACT FILES FROM PASSWORD PROTECTED ARCHIVES

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PeaZip is focused on security and supports handling multiple strong encryption standards for the archive formats implementing cryptography by design:

Full encryption / decryption support


7Z

7-Zip AES-256 encryption


ARC

FreeARC AES-256, Blowfish, Serpent-256, and Twofish-256
This format also supports recovery records to protect data against corruption

PEA

AES-256 EAX mode authenticated encryption


ZIP

WinZip AE, based on AES-256

ZipCrypto (for legacy compatibility only, not recommended for protecting sensitive data in a modern security scenario)

Read, decryption only


ACE

WinAce Blowfish-based encryption


RAR

RAR4 AES-128 encryption

RAR5 AES-256 algorithm in CBC mode


ZIP

PKZip's AES encryption standard


ZIPX

WinZip AE, based on AES-256

(while encryption method is fully supported, the archive format itself is supported read-only so PeaZip can handle it only as opener / extractor)


View more information about cryptography standards implemented in popular archive formats: 7-Zip 7z format specificationsencrypted .7z file, WinZip AE encryptionzip advanced encryption standardPKZip AES encryptionencrypted zip file

read password protected file

Hint: official PeaZip packages NEVER ask users a password to be installed or to run: if that happens please don't trust that package and rely only on official packages published on official PeaZip domain, and official mirrors.

How to extract files from password protected archives


To extract a password protected archive open it with PeaZip (double click if it is a supported file extension) to read and navigate/search its content, then use Extract button in application's toolbar.
Otherwise, use "Extract" entries in context menu for direct extraction without browsing the encrypted container.

If a password is needed for extraction (or browsing) PeaZip will prompt a form to enter the password or passphrase - and optionally a keyfile, if two factor authentication is in use.
Some archive formats, like 7Z, ARC and RAR, supports encrypting the list of files and folders contained in the archive (option usually identified as "encrypt file names"), to protect this information from unauthorized users, so the password will be required even for listing / browsing the archive - without providing  correct password the archive TOC will not be decrypted and will not be visible, disallowing archive browsing / searching.
In other cases it is possible to browse the password protected archive, but the password will be required to extract the encrypted data; in PeaZip's file/archive browser you can enter the password clicking the proper context menu entry or clicking on the locker icon in the status bar open with password or pressing F9.

Current revisions of mainstream archive formats like (7Z, ARC, PEA, RAR, and ZIP/ZIPX) uses strong file encryption, and it is unlikely to be possible to brute-force it with any kind of utility if the password is unknown or was forgotten.

In some cases PeaZip may not able to view and browse archive's content not because it is encoded but because it is corrupted or was created out of standard: in all those cases PeaZip will always display the password dialog, to let the user in control of choosing if entering a password for trying to decrypt the archive, even if the file extensionencrypted file formats is not usually associated with archives supporting encryption, as file extension can be easily changed.
If you got a corrupted archive you will need to re-download it from a trusted source or restore it from a backup copy.

encrypted files

If you have to work on different archives with the same password you will not need to re-enter it since it will be kept until you change it or close PeaZip. If you open different instances of PeaZip each will start with no password and can keep a different password.

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PeaZip, unlike most other file archivers, supports optional two factor authentication, requiring a password and a keyfile to decrypt an encrypted archive built using that option - simply setting a keyfile in the password dialog when creating the archive.
If a keyfile is set for any other format than PEA (which has its own way to use keyfile) the SHA256 hash of the keyfile, encoded in Base64 (RFC 4648), will be prepended to the password: this convention allows to open archives built with two factor authentication with any third parts archiver simply passing the Base64-encoded SHA256 hash of the keyfile as the first part of the password.

PeaZip also provides an encrypted password manager in Tools > Password manager from main menu, in this way a master password can be used to encrypt passwords the user desires to keep saved.
The password manager file is unique for each user on the system using PeaZip, so multiple users can keep multiple separated password lists.

Read more on Wikipedia pages about encryptionopen encrypted files and two factor authentication2fa Wikipedia


RELATED & SIMILAR PAGES
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CHANGE PASSWORD FOR EXISTING ARCHIVE

ENCRYPTION PASSWORD RECOVERY

ERASE DATA
 
POST-QUANTUM CRYPTOGRAPHY
PROTECT DATA WITH ENCRYPTION
SECURITY COPY

SET MULTIPLE PASSWORDS IN SAME FILE
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