23 lines
1.1 KiB
Plaintext
23 lines
1.1 KiB
Plaintext
John the Ripper -- Password Cracker
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John the Ripper is designed to be both powerful and fast. It combines
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several cracking modes in one program, and is fully configurable for your
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particular needs (you can even define a custom cracking mode using the
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built-in compiler supporting a subset of C).
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Out of the box, John supports (and autodetects) the following ciphertext
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formats: standard and double-length DES-based, BSDI's extended DES-based,
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FreeBSD's (and not only) MD5-based and OpenBSD's Blowfish-based.
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With just one extra command (required to extract the passwords), John can
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crack AFS passwords and WinNT LM hashes.
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Unlike other crackers, John doesn't use a crypt(3)-style routine. Instead,
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it has its own highly optimized modules for different ciphertext formats
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and architectures. Some of the algorithms used couldn't be implemented in
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a crypt(3)-style routine: they require a more powerful interface (bitslice
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DES is an example). Additionally, there're assembly routines for several
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processors and architectures (special Intel Pentium version, x86 with MMX,
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generic x86, Alpha EV4, SPARC V8).
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