This is the command psk-crack that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
psk-crack - Crack IKE Aggressive Mode Pre-Shared Keys
SYNOPSIS
psk-crack [options] <psk-parameters-file>
<psk-parameters-file> is a file containing the parameters for the pre-shared key cracking
process in the format generated by ike-scan with the --pskcrack (-P) option. This file
can contain one or more entries. For multiple entries, each one must be on a separate
line.
The program can crack either MD5 or SHA1-based hashes. The type of hash is automatically
determined from the length of the hash (16 bytes for MD5 or 20 bytes for SHA1). Each
entry in the <psk-parameters-file> is handled separately, so it is possible to crack a
mixture of MD5 and SHA1 hashes.
psk-crack can also crack the proprietary hash format used by Nortel Contivity / VPN Router
systems. When cracking Nortel format hashes, you need to specify the username of the hash
that you are cracking with the --norteluser (-u) option. When cracking Nortel format
hashes, you can only crack one hash at a time.
By default, psk-crack will perform dictionary cracking using the default dictionary. The
dictionary can be changed with the --dictionary (-d) option, or brute-force cracking can
be selected with the --bruteforce (-B) option.
DESCRIPTION
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"
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