#!/usr/bin/env bash
# SHA1 Cracker V1.0
# coded By 0x90 2009
# 0x90[at]bsdmail.org
# This small tool will bruteForce SHA1 hash
# tested on Fedora Linux
#
# I do not take any reponsibilty for what you do with this tool
# Hopefully it will make your life easier rather then making other
# peoples lives more difficult!
##############################
# ___ ___ ___
# / _ \ / _ \ / _ \
#| | | |_ _| (_) | | | |
#| | | \ \/ /\__, | | | |
#| |_| |> "
read mode

if [ "$mode" = "all" ]; then
char="a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 ! # \$ % & \' ( ) \* + , - . / : ; & ? @ [ \\ ] ^ _ { | } ~"
fi
if [ "$mode" = "alnum" ]; then
char="a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9"
fi
if [ "$mode" = "alpha" ]; then
char="a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9"
fi
if [ "$mode" = "lower" ]; then
char="a b c d e f g h i j k l m n o p q r s t u v w x y z"
fi
if [ "$mode" = "upper" ]; then
char="A B C D E F G H I J K L M N O P Q R S T U V W X Y Z"
fi
if [ "$mode" = "digit" ]; then
char="0 1 2 3 4 5 6 7 8 9"
fi
if [ "$mode" = "symbols" ]; then
char="! # \$ % & \' ( ) \* + , - . / : ; & ? @ [ \\ ] ^ _ { | } ~"
fi


bf(){
for c in $char ; do

nc=$[$nc+1]
ch[$nc]=$c
done
for x in `seq 1 $[$maxlen+1]` ; do

if [ $minlen -ge $x ] ; then
ci[$x]=1
else
ci[$x]=0
fi
done
for clen in `seq $minlen $maxlen` ; do

while [ ${ci[$[$clen+1]]} -ne 1 ] ; do
wrd=""
for x in `seq $clen -1 1` ; do
wrd=$wrd${ch[${ci[$x]}]}
done


sha1_hash=`echo -n "$wrd" | sha1sum | awk '{ print $1 }'`


echo "$wrd: hash: $sha1_hash"
if [ "$sha1_hash" == "$hash" ]; then
echo
echo "Cracked, SHA1 password is: $wrd"
exit 0
fi
ci[1]=$[${ci[1]}+1]
for x in `seq 1 $clen`; do
if [ ${ci[$x]} -gt $nc ] ; then
ci[$x]=1
ci[$[$x+1]]=$[${ci[$[$x+1]]}+1]
fi
done
done
done
}

bf



fi
#########################
# Dictionary BruteForce
#########################
# Cain&Abel wordlist http://www.md5this.com/Wordlist.zip
# dont forget to convert the wordlist to Unix file format
# dos2unix Wordlist.txt
if [ "$choise" == "2" ]; then
echo "use dictionary method to crack"
echo -n "Enter dictionary name: "
read dic
echo "trying to bruteforce SHA1 hash ..."

n=`cat $dic | wc -l`

echo "we have $n password to try"
for (( i=1; i <= $n; i++));
do
pass=`sed -n "$i"p $dic`
sha1_hash=`echo -n "$pass" | sha1sum | awk '{ print $1 }'`

echo "$i: hash: $sha1_hash"

if [ "$sha1_hash" == "$hash" ]; then
echo
echo "Cracked, SHA1 password is: $pass"
exit 0
fi
done
fi
exit