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Cracken is a snappy password wordlist generator, Smartlist introduction and password hybrid-mask analysis instrument written in herbal safe Rust (further on keep up a correspondence/). Inspired by way of great apparatus like maskprocessor, hashcat, Crunch and

What? Why? Woot??

At DeepSec2021 we presented a brand spanking new means for analysing passwords as Hybrid-Masks exploiting same old substrings in passwords thru the usage of NLP tokenizers (further information on keep up a correspondence/).

Our means splits a password into its subwords instead of just a characters mask. HelloWorld123! splitted into ['Hello', 'World', '123!'] as the ones 3 subwords are rather same old in a lot of passwords.

Hybrid Masks & Smartlists

  • Smartlists – Compact & promoting information subword lists comprised of passwords thru the usage of NLP tokenizers

  • Hybrid-Mask – A representation of a password as a mixture of wordlists & characters (e.g. ?w1?w2?l?d)

Inspecting RockYou Passwords with Smartlists & Hybrid-Masks:

complete table correct right kind proper right here

Cracken is used for:

Possible workflows with Cracken:

Simple:

  1. Generate wordlist candidates from a hybrid mask – e.g. cracken -w rockyou.txt -w 100-most-common.txt '?w1?w2?d?d?d?d?s'
  2. You’ll be able to pipe the passwords Cracken generates into hashcat, john or your favorite password cracker

Tough:

  1. Create a Smartlist from supply passwords – cracken create
  2. Analyze a passwords report of plaintext passwords – cracken entropy
  3. use most same old Hybrid-Masks to generate password candidates rapid – cracken generate -i hybrid-masks.txt

For added details see Usage section

Getting Started

download (linux only lately): latest release

for additonal prepare conceivable possible choices see prepare section

run Cracken:

generate all words of length 8 starting with uppercase followed by way of 6 lowercase chars and then a digit:

$ cracken -o pwdz.lst '?u?l?l?l?l?l?l?d'

generate words from two wordlists with 300 and sixty 5 days suffix (1000-2999) <firstname><lastname><300 and sixty 5 days>

$ cracken --wordlist firstnames.txt --wordlist lastnames.lst --charset '12' '?w1?w2?1?d?d?d'

create a Smartlist of size 50k from subwords extracted from rockyou.txt

$ cracken create -f rockyou.txt -m 50000 --smartlist superb.lst

estimate the entropy of hybrid mask of the password HelloWorld123! the usage of a smartlist

$ cracken entropy -f superb.lst 'HelloWorld123!'

hybrid-min-split: ["hello", "world1", "2", "3", "!"]
hybrid-mask: ?w1?w1?d?d?s
hybrid-min-entropy: 42.73
--
charset-mask: ?l?l?l?l?l?l?l?l?l?l?d?d?d?s
charset-mask-entropy: 61.97

Potency

As of scripting this, Cracken is with reference to definitely the sphere’s fastest wordlist generator:

Cracken has spherical 25% upper potency over hashcat’s rapid maskprocessor thats written in C.

Cracken can generate spherical 2 GB/s in line with core.

further details on benchmarks/

Why speed is very important? An ordinary GPU can check out billions passwords in line with 2d depending on the password hash function. When the wordlist generator produces fewer words in line with 2d than the cracking instrument can maintain – the cracking speed will degrade.

Hybrid-Masks Analysis Potency

Cracken uses A* algorithm to research passwords very rapid. it would to look out the minimal Hybrid-Mask of passwords file at charge of ~100k Passwords/sec (cracken entropy -f words1.txt -f words2.txt ... -p pwds.txt)

Prepare

prepare Cracken or raise in combination from provide

Download Binary (Linux Absolute best In recent times)

download latest release from releases

Bring together From Provide (All Platforms)

Cracken is written in Rust and desires rustc to get compiled. Cracken should give a boost to all Platforms that Rust give a boost to.

prepare instructions for cargo

there are two conceivable possible choices building from provide – setting up with cargo from crates.io (most up to date) or compiling manually from provide.

1. prepare from crates.io (most up to date)

prepare with cargo:

2. assemble from provide

clone Cracken:

$ git clone https://github.com/shmuelamar/cracken

assemble Cracken:

$ cd cracken
$ cargo assemble --release

run it:

$ ./purpose/release/cracken --help

Usage Knowledge

<div class=”snippet-clipboard-content position-relative overflow-auto” data-snippet-clipboard-copy-content=”$ cracken –have the same opinion Cracken v1.0.0 – a snappy password wordlist generator USAGE: cracken [SUBCOMMAND] FLAGS: -h, –have the same opinion Prints have the same opinion wisdom -V, –version Prints version wisdom SUBCOMMANDS: generate (default) – Generates newline separated words in line with given mask and wordlist information create Create a brand spanking new smartlist from input file(s) entropy Computes the estimated entropy of password or password file. The entropy of a password is the log2(len(keyspace)) of the password. There are two kinds of keyspace size estimations: * mask – keyspace of every char (digit=10, lowercase=26…). * hybrid – finding minimal scale back up into subwords and charsets. For explicit subcommand have the same opinion run: cracken <subcommand> –have the same opinion Example Usage: ## Generate Subcommand Examples: # all digits from 00000000 to 99999999 cracken ?d?d?d?d?d?d?d?d # all digits from 0 to 99999999 cracken -m 1 ?d?d?d?d?d?d?d?d # words with pwd prefix – pwd0000 to pwd9999 cracken pwd?d?d?d?d # all passwords of length 8 starting with upper then 6 lowers then digit cracken ?u?l?l?l?l?l?l?d # identical as above, write output to pwds.txt instead of stdout cracken -o pwds.txt ?u?l?l?l?l?l?l?d # custom charset – all hex values cracken -c 0123456789abcdef ‘?1?1?1?1’ # 4 custom charsets – the order determines the id of the charset cracken -c 01 -c ab -c de -c ef ‘?1?2?3?4’ # 4 lowercase chars with years 2000-2019 suffix cracken -c 01 ‘?l?l?l?l20?1?d’ # starts with firstname from wordlist followed by way of 4 digits cracken -w firstnames.txt ‘?w1?d?d?d?d’ # starts with firstname from wordlist with lastname from wordlist completing with symbol cracken -w firstnames.txt -w lastnames.txt -c ‘[email protected]#$’ ‘?w1?w2?1’ # repeating wordlists a couple of instances and combining charsets cracken -w verbs.txt -w nouns.txt ‘?w1?w2?w1?w2?w2?d?d?d’ ## Create Smartlists Subcommand Examples: # create smartlist from single file into superb.txt cracken create -f rockyou.txt –smartlist superb.txt # create smartlist from a couple of information with a couple of tokenization algorithms cracken create -t bpe -t unigram -t wordpiece -f rockyou.txt -f passwords.txt -f wikipedia.txt –smartlist superb.txt # create smartlist with minimum subword length of 3 and max numbers-only subwords of size 6 cracken create -f rockyou.txt –min-word-len 3 –numbers-max-size 6 –smartlist superb.txt ## Entropy Subcommand Examples: # estimating entropy of a password cracken entropy –smartlist vocab.txt ‘helloworld123!’ # estimating entropy of a passwords file with a charset mask entropy (default is hybrid) cracken entropy –smartlist vocab.txt -t charset -p passwords.txt # estimating the entropy of a passwords file cracken entropy –smartlist vocab.txt -p passwords.txt cracken-v1.0.0 linux-x86_64 compiler: rustc 1.56.1 (59eed8a2a 2021-11-01) further information at: https://github.com/shmuelamar/cracken “>

$ cracken --help
Cracken v1.0.0 - a snappy password wordlist generator

USAGE:
cracken [SUBCOMMAND]

FLAGS:
-h, --help Prints have the same opinion wisdom
-V, --version Prints version wisdom

SUBCOMMANDS:
generate (default) - Generates newline separated words in line with given mask and wordlist information
create Create a brand spanking new smartlist from input file(s)
entropy
Computes the estimated entropy of password or password file.
The entropy of a password is the log2(len(keyspace)) of the password.

There are two kinds of keyspace size estimations:
* mask - keyspace of every char (digit=10, lowercase=26...).
* hybrid - finding minimal scale back up into subwords and charsets.

For explicit subcommand have the same opinion run: cracken <subcommand> --help

Example U sage:

## Generate Subcommand Examples:

# all digits from 00000000 to 99999999
cracken ?d?d?d?d?d?d?d?d

# all digits from 0 to 99999999
cracken -m 1 ?d?d?d?d?d?d?d?d

# words with pwd prefix - pwd0000 to pwd9999
cracken pwd?d?d?d?d

# all passwords of length 8 starting with upper then 6 lowers then digit
cracken ?u?l?l?l?l?l?l?d

# identical as above, write output to pwds.txt instead of stdout
cracken -o pwds.txt ?u?l?l?l?l?l?l?d

# custom charset - all hex values
cracken -c 0123456789abcdef '?1?1?1?1'

# 4 custom charsets - the order determines the id of the charset
cracken -c 01 -c ab -c de -c ef '?1?2?3?4'

# 4 lowercase chars with years 2000-2019 suffix
cracken -c 01 '?l?l?l?l20?1?d'

# starts with firstname from wordlist followed by way of 4 digits
cracken -w firstnames.txt '?w1?d?d?d?d'

# starts with firstname from wordlist with lastname from wordlist completing with symbol
cracken -w firstnames.txt -w lastnames.txt -c '[email protected]#$' '?w1?w2?1'

# repeating wordlists a couple of instances and combining charsets
cracken -w verbs.txt -w nouns.txt '?w1?w2?w1?w2?w2?d?d?d'

## Create Smartlists Subcommand Examples:

# create smartlist from single file into superb.txt
cracken create -f rockyou.txt --smartlist superb.txt

# create smartlist from a couple of information with a couple of tokenization algorithms
cracken create -t bpe -t unigram -t wordpiece -f rockyou.txt -f passwords.txt -f wikipedia.txt --smartlist superb.txt

# create smartlist with minimum subword length of 3 and max numbers-only subwords of size 6
cracken create -f rockyou.txt --min-word-len 3 --numbers-max-size 6 --smartlist superb.txt

## Entropy Subcommand Examples:

# estimating entropy of a password
cracken entropy --smartlist vocab.txt 'helloworld123!'

# estimating entropy of a passwords file with a charset mask entropy (default is hybrid)
cracken entropy --smartlist vocab.txt -t charset -p passwords.txt

# estimating the entropy of a passwords file
cracken entropy --smartlist vocab.txt -p passwords.txt

cracken-v1.0.0 linux-x86_64 compiler: rustc 1.56.1 (59eed8a2a 2021-11-01)
further information at: https://github.com/shmuelamar/cracken

<div class=”snippet-clipboard-content position-relative overflow-auto” data-snippet-clipboard-copy-content=”$ cracken generate –have the same opinion cracken-generate (default) – Generates newline separated words in line with given mask and wordlist information USAGE: cracken generate [FLAGS] [OPTIONS] –masks-file FLAGS: -h, –have the same opinion Prints have the same opinion wisdom -s, –stats prints the collection of words this command will generate and exits -V, –version Prints version wisdom OPTIONS: -c, –custom-charset … custom charset (string of chars). up to 9 custom charsets – ?1 to ?9. use ?1 on the mask for the main charset -i, –masks-file a file containing masks to generate -x, –maxlen maximum length of the mask to begin out from -m, –minlen minimum length of the mask to begin out from -o, –output-file output file to put in writing down the wordlist to, defaults to stdout -w, –wordlist … filename containing newline (0xA) separated words. follow: lately all wordlists loaded to memory ARGS: the wordlist mask to generate. available masks are: builtin charsets: ?d – digits: “0123456789” ?l – lowercase: “abcdefghijklmnopqrstuvwxyz” ?u – uppercase: “ABCDEFGHIJKLMNOPQRSTUVWXYZ” ?s – symbols: ” !”#$%&'()*+,-./:;[email protected][]^_`~” ?a – all characters: ?d + ?l + ?u + ?s ?b – all binary values: (0-255) custom charsets ?1 to ?9: ?1 – first custom charset specified by –charset ‘mychars’ wordlists ?w1 to ?w9: ?w1 – first wordlist specified by –wordlist ‘my-wordlist.txt’ “>

$ cracken generate --help
cracken-generate
(default) - Generates newline separated words in line with given mask and wordlist information

USAGE:
cracken generate [FLAGS] [OPTIONS] <mask> --masks-file <masks-file>

FLAGS:
-h, --help
Prints have the same opinion wisdom

-s, --stats
prints the collection of words this command will generate and exits

-V, --version
Prints version wisdom

OPTIONS:
-c, --custom-charset <custom-charset>...
custom charset (string of chars). up to 9 custom charsets - ?1 to ?9. use ?1 on the mask for the main charset

-i, --masks-file <masks-file>
a file containing masks to generate

-x, --maxlen <max-length>
maximum length of the mask to begin out from

-m, --minlen & lt;min-length>
minimum length of the mask to begin out from

-o, --output-file <output-file>
output file to put in writing down the wordlist to, defaults to stdout

-w, --wordlist <wordlist>...
filename containing newline (0xA) separated words. follow: lately all wordlists loaded to memory

ARGS:
<mask>
the wordlist mask to generate.
available masks are:
builtin charsets:
?d - digits: "0123456789"
?l - lowercase: "abcdefghijklmnopqrstuvwxyz"
?u - uppercase: "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
?s - symbols: " !"#$%&'()*+,-./:;<=>[email protected][]^_`~"
?a - all characters: ?d + ?l + ?u + ?s
?b - all binary values: (0-255)

custom charset s ?1 to ?9:
?1 - first custom charset specified by --charset 'mychars'

wordlists ?w1 to ?w9:
?w1 - first wordlist specified by --wordlist 'my-wordlist.txt'


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