psk-crack1

Usage

Overview

psk-crack attempts to crack IKE Aggressive Mode pre-shared keys that have previously been gathered using ike-scan with the --pskcrack option.

psk-crack can operate in two different modes:

1)

Dictionary cracking mode: this is the default mode in which psk-crack tries each candidate word from the dictionary file in turn until it finds a match, or all the words in the dictionary have been tried.

2)

Brute-force cracking mode: in this mode, psk-crack tries all possible combinations of a specified character set up to a given length.

Options

--help or -h

Display this usage message and exit.

--version or -V

Display program version and exit.

--verbose or -v

Display verbose progress messages.

--dictionary=<f> or -d <f>

Set dictionary file to <f>. The default is /usr/local/share/ike-scan/psk-crack-dictionary.

--norteluser=<u> or -u <u>

Specify the username for Nortel Contivity cracking. This option is required when cracking pre-shared keys on Nortel Contivity / VPN Router systems. These systems use a proprietary method to calculate the hash that includes the username. This option is only needed when cracking Nortel format hashes, and should not be used for standard format hashes.

--bruteforce=<n> or -B <n>

Select bruteforce cracking up to <n> characters.

--charset=<s> or -c <s>

Set bruteforce character set to <s> Default is "0123456789abcdefghijklmnopqrstuvwxyz"