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Advanced Archive Password Recovery (or ARCHPR) is a program to recover lost or forgotten passwords to archives (compressed files) of the following types: ZIP/PKZip/WinZip, ARJ/WinARJ, ACE/WinACE (1.x), RAR/WinRAR.

The key features of ARCHPR are:

* The program has a convenient user interface
* The program is very fast: for ZIP with traditional encryption, brute-force attack speed is up to fifteen million passwords per second on modern CPUs like Pentium 4 (Prescott)
* Guaranteed decryption (usually, within the hour) of many WinZip archives (created in versions 8.0 and below, with 5+ encrypted files) is available; it works regardless the password complexity and length
* The program can work with archives containing only one encrypted file
* Archives created by various software packages are supported
* Strong WinZip encryption (AES) is supported
* Self-extracting archives are supported
* The program is customizable: you can set the password length (or length range), the character set to be used to generate the passwords, and a couple of other options
* You can select the custom character set for brute-force attack (non-English characters are supported)
* Dictionary-based attack (with word mutations) is available
* The "brute-force with mask" attack is available
* Very fast known-plaintext attack is available (ZIP and ARJ only)
* You can interrupt the program at any time, and resume from the same point later
* The program can work in the background, using the CPU only when it is in idle state


Please note, however, that for the password is not stored anywhere in the archive (ZIP/RAR/ARJ/ACE file), and so it cannot be just extracted or decrypted. Instead, ARCHPR can recover it by trying different passwords: all possible combinations in a given range, or from a wordlist, etc. ARCHPR can test as many as fifteen million passwords per second (for ZIP archives), and so the likelihood of finding a valid one is very high. There is still no guarantee that the password will be recovered, but here the human factor plays its role: most people use short and/or easy to remember passwords. We estimate the success rate as 90-95%.

Version 3.0 has improved user interface, adds support of strong WinZip encryption (AES), works much faster on ZIP archives with classic ZIP encryption (from 10%-15% on AMD Athlon, PII/PIII and P4 Prescott to 45% on P4 Northwood), and fixes a few problems with RAR 3.0 archives. Version 3.01 is a bug-fix release.

download:
http://w13.easy-share.com/1154083.html