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Fastest, tested, mostly free password recovery software with benchmarks and review

Archives → ARJ password recovery

Overview of ARJ password protection: ARJ archiver uses a very weak encryption algorithm. This results in the fact that in case you have only one unencrypted file from the archive, then the password for this archive can be found instantly. ARJ encryption system has some other weaknesses. For example, one can find first 3 characters without using the exhaustive search, and the password testing is very fast.

Password recovery tools
File extensions: arj
ARJ crypto algorithms: XOR with password
ARJ encryption weakness: human factor, (very) weak algorithm
Possible attacks against ARJ: brute-force / known-plaintext
Attacks complexity: depends only on password length / 20

How can I recover ARJ password? If you've got unencrypted files from archive then use known-plaintext attack

Sort by
Yet Another ARJ Cracker (YAAC) 1.0a +++
(6451 downloads)
by P. Semjanov
Pentium 4 rate: 1000000
Core 2 Duo rate: not tested
AMD rate : not tested
CUDA rate : N/A
Optimized for

fastest

Free
Price:  $0.00

Description: A command-line utility for ARJ passwords recovery, uses Password Cracking Library 2.0. Determines first three symbols of password without brute-force. A unique utility that allows finding passwords up to 12-14 characters long. The utility doesn't support stored files.

Ultimate ZIP Cracker (UZC) 8.0.2.0 +++
(59138 downloads)
by VDGSoftware
Pentium 4 rate: not tested
Core 2 Duo rate: not tested
AMD rate : not tested
CUDA rate : N/A
Optimized for Pentium 4; Core 2; AMD; Dual


Shareware
Price:  $59.00
buy!
Description: The Ultimate ZIP Cracker is designed for recovering the lost passwords for several file types: MS-Word and MS-Excel documents; ZIP, RAR and ARJ archives. The program is highly optimized for speed.

SOLVEPWD ++++
(1934 downloads)
by A. Skoblov
Pentium 4 rate: not tested
Core 2 Duo rate: not tested
AMD rate : not tested
CUDA rate : N/A
Optimized for


Free
Price:  $0.00

Description: A command-line utility, supports known-plaintext attack (you need at least one unencrypted file from archive).

Advanced Archive Password Recovery (ARCHPR) 4.0 ++
(43385 downloads)
by ElcomSoft Co.Ltd.
Pentium 4 rate: not tested
Core 2 Duo rate: not tested
AMD rate : not tested
CUDA rate : N/A
Optimized for Pentium II/III; Pentium 4; Core 2; AMD

Recommended

Shareware
Price:  $99.00
buy!
Description: Advanced Archive Password Recovery recovers passwords and removes protection from ZIP and RAR archives created with all versions of PKZip, WinZip, RAR and WinRAR in their GUI and command-line incarnations. Being a flexible, customizable and highly-optimized password recovery tool, it offers best-in-class performance for recovering the most complex passwords. Guaranteed recovery is often possible for many ZIP archives in less than one hour.

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