Yaping's Weblog

September 2, 2008

Password Cracking

Filed under: Oracle — Yaping @ 2:27 am

There’re many tools used to crack password, such as orabf, on one P4 2.0G CPU machine, it can compute about one million hash value per second.

We can also store password and its hash value pair in files, called rainbow table, then use hash value to compare value in this file. It’s especial useful for known users, such as sys, system.


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