Basic of crunch
What is crunch ?
crunch is a word list generating tool that comes pre-installed with Kali Linux. It is used to generate custom keywords based on word lists. It generates a word list with permutation and combination. We could use some specific patterns and symbols to generate a word list.
installations
For installation of crunch use command sudo apt install crunch.
Syntax
asic syntax of crunch is crunch <min length> <max length> <options>
Small overview
How to use crunch
For custom values
If you know that password has some custom values . so you can create a word list with custom values. in this i am using -o for saving this file. you can also use -s then your values.
For inverting values
for inverting values use -i
You can see that how our values are inverting like aaa,aab,aac…..
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For charter set
in crunch we have a option is charter set use cat /usr/share/crunch/charset.lst it will open all different charset present in crunch.
For charset we will use -f . also name of charset in my case it is lalpha
For special pattern
For special pattern we use -t . then your pattern . in my pattern i am using %%% for numerical values
For permutation values
if you know that password is some special words then you use permutation by using -p then your words.
For set duplicate values
if you know that password have only 2/3… duplicate values you can maintain it by using -d and no of duplicate values sign for values like if it is numerical then %.
For reading a file.
If you store some values in file .then can use it by -q and file
Use of -l
- -l is using for treat a special charters as a string. in this you can see that i am using @ symbol it take its as a @ not as a lower case .
