Opcrack is a password cracker based on rainbow tables, a method that makes it possible to speed up the cracking process by using the result of calculations done in advance and stored rainbow tables.

Ophcrack is being developed by Objectif Sécurité under the GPLv2 license.

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Rainbow tables

A set of rainbow tables has been created and optimised for use with Ophcrack. Most of them are available for free. A more advanced set of a size of more than 2TB aimed at security professionals can be bought for $999.

Demo

Free LMHash tables

  • For LMHashes (e.g for XP)

    XP_free
    mixed_alphanum, 1 to 14, 380MB
    XP_special
    mixed_alphanum_special, 1 to 14, 8.7GB
    XP_german
    mixed_alphanum_german, 1 to 14, 7.4GB

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Free NTHash tables

  • For NTHashes (e.g. for Vista and up)

    Vista_free
    dictionary based, 1 to 16, 450MB
    Vista_special
    various charsets, 1 to 8, 8GB
    Vista_num
    numbers, 1 to 12, 3GB

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Professional tables

  • For NTHashes

    Vista_proba_60G
    probabilistic, 5 to 14, 60GB
    Vista_specialXL
    mixed_alphanum_special, 1 to 7, 107GB
    Vista_eightXL
    mixed_alphanum_special, 8, 2.0TB

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