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

Archives → ZIP password recovery

ZIP password recovery/decryption service

Overview of ZIP password protection: Zip-archivers (pkzip, WinZip versions up to 8.0) use their proprietary encryption algorithm which is not strong. This causes two practical vulnerabilities. Firstly, it's always possible to implement a plain-text attack (one unencrypted file from the archive needed). Secondly, if the archive was created with WinZip or Infozip and contains 5 or more files, then it is possible to decrypt the archive with guarantee regardless of password length and complexity. Both attacks take just couple hours on the modern computer.

In the latest WinZip versions there is an option that allows using strong AES algorithm. In this case the said attacks are unapplicable and only brute-force can be used for Zip password recovery.

Password recovery tools
File extensions: zip
ZIP crypto algorithms: Propietary (up to WinZip 8.0), AES
ZIP encryption weakness: Human factor, weak algorithm
Possible attacks against ZIP: brute-force (exhaustive key search if WinZip)/ known-plaintext
Attacks complexity: 288(236 if WinZip)/ 238

Arcticles about ZIP encryption: ZIP Attacks with Reduced Known-Plaintext, A Known Plaintext Attack on the PKZIP Stream Cipher
How can I recover ZIP password? use known-plaintext attack if you've got unencrypted file from archive, use guaranteed recovery if you've got WinZip archive with at least 5 files

Sort by
Advanced Archive Password Recovery (ARCHPR) 4.0 ++
(43371 downloads)
by ElcomSoft Co.Ltd.
Pentium 4 rate: 6.000.000 (Zip) / 20.000.000 (WinZip) / 340 (AES)
Core 2 Duo rate: 14.000.000 (Zip) / 34.000.000 (WinZip) / 700 (AES)
AMD rate : 10.000.000 (Zip)/23.000.000 (WinZip)
CUDA rate : N/A
Optimized for Pentium II/III; Pentium 4; Core 2; AMD

Recommended
fastest

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.

Zip Password Recovery Master 1.0 +++
(3333 downloads)
by Rixler Password Recovery
Pentium 4 rate: 4.300.000 (Zip/Winzip) / 180 (AES)
Core 2 Duo rate: 10.000.000 (Zip/Winzip) / 300 (AES)
AMD rate : 8.800.000 (Zip/Winzip) / 200 (AES)
CUDA rate : N/A
Optimized for


Shareware
Price:  $29.95

Description: Zip Password Recovery Master helps to recover lost passwords for ZIP archives. It supports a number of exclusive attacks to beat zip passwords. The use of undocumented features of ZIP files provide you with a great time reduction while searching the password.

Ultimate ZIP Cracker (UZC) 8.0.2.0 +++
(59068 downloads)
by VDGSoftware
Pentium 4 rate: 3.000.000 (Zip/WinZip)
Core 2 Duo rate: 11.000.000 (Zip/WinZip)
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.

fcrackzip v.0.3.0 ++
(17483 downloads)
by M. Lehmann
Pentium 4 rate: 2.000.000
Core 2 Duo rate: not tested
AMD rate : not tested
CUDA rate : N/A
Optimized for


Free+sources
Price:  $0.00

Description: A command-line utility. Do not use for archives with only one file.

PkCrack v.1.2.2 +++
(17093 downloads)
by P. Conrad
Pentium 4 rate: few hours
Core 2 Duo rate: not tested
AMD rate : few hours
CUDA rate : N/A
Optimized for


Free+sources
Price:  $0.00

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

Accent ZIP Password Recovery (AccentZPR) 3.0 +++
(914 downloads)
by Passcovery 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; Dual; NVIDIA GPU; ATI GPU


Demo
Price:  $40.00

Description: Really quick search of lost ZIP passwords (.zip and .zipx files). Supports various types of encryption: ZIP/Classic and WinZip AES. Striking code optimization for Intel and AMD processors. Uses GPU computing - works applying ATI and NVIDIA video cards. The rate of searching is 60 times higher! Easy-to-use for novice users - there is an automatic searching according to preset scenarios. Has different options for professionals.

Parallel Password Recovery (ZIP module) 1.6
(809 downloads)
by Parallel Password Recovery
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; NVIDIA GPU


Demo
Price:  $29.00

Description: Parallel ZIP Password recovery is an utility to recover ZIP/WinZIP/PkZip passwords. Local version support can use up to 8 cores/GPUs, distributed versions can be run on TCP/IP networks. Special password definition language supports all well-known standard attacks (such as brute force, dictionary, misspelled password recovery etc) and also allows users to make their own attack types. Supports all ZIP archive types and has high recovery rate.

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