John the Ripper password cracker. John the Ripper is a fast password cracker, currently available for many flavors of Unix (11 are officially supported, not counting different architectures), Windows, DOS, BeOS, and OpenVMS (the latter requires a contributed patch). Its primary purpose is to detect weak Unix passwords.

2012年11月11日 · John the Ripper（JtR）是一款功能强大的密码破解工具，提供了多种参数和选项，用于配置不同的攻击模式、加速破解过程以及应对不同类型的密码哈希和加密算法。以下是对John the Ripper工具的各种参数和选项的详细介绍。```- `[PASSWORD_HASH_FILE]`：密码哈希 …

You may need to choose the executable which fits your system best, e.g. "john-mmx" to take advantage of MMX acceleration. Features and performance. John the Ripper is designed to be both feature-rich and fast.

2010年7月12日 · 現在的CPU大都支援mmx，所以應該把john-mmx.zip裡面那個john.exe解壓出來，覆蓋掉run目錄中原有的那一個。 現在網上已經有了新的mmx最佳化檔案，可以進一步提高john的運行速度，自己多多留心吧。

John the Ripper jumbo supports hundreds of hash and cipher types, including for: user passwords of Unix flavors (Linux, *BSD, Solaris, AIX, QNX, etc.), macOS, Windows, "web apps" (e.g., WordPress), groupware (e.g., Notes/Domino), and database servers (SQL, LDAP, etc.); network traffic captures (Windows network authentication, WiFi WPA-PSK, etc ...

2008年8月22日 · 记得国外有款工具，JOHN 拿来试试。 我这里使用JOHN-MMX.EXE 命令，根据自己得理解MMX128位指令级，要比john-386.exe快些。 用台小PIII跑了两天，发现了几个没用的帐户已经被跑出来了，都是我已知或是没有ROOT权限得帐户。 我得目标是ROOT帐户。 第三天摸了下PIII的小屁股，发现已经可以煎个鸡蛋不成问题。 中断掉JOHN，这个东西好在能中断，下次使用-restore参数接着现在继续跑。 看我得小PIII还在努力着，CPU始终是在%100,希望在没跑 …

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今回は、UNIXのパスワードクラックソフトであるJohn The Ripperについて説明します。 といっても、自分もまだ使いだしてまもないのでたいしたことはありませんが・・・。

2007年1月9日 · I will also point out some other (minor) issues: > at C:\john1701\run> typed in "john-386.exe passwords.txt" The john-386.exe executable is for truly ancient computers (10+ years old). You should have been using john-mmx.exe instead (but that would not make a difference in your case).