CHALLENGE: Write a Brute force code

Question

Brute force is a trial and error method used to crack passwords. Brute force cracking uses every possible combination of letters, numbers and symbols at every possible lengths to crack the password.

Challenge: Write a code that uses the Brute force method to crack a password that has a length of more than 2 characters . Your code must include:
• a variable that contains the password
• an array of symbols,letters and numbers
• a function that will combine all the values from the array to find the password

Answer 1

@MrCoder, yes, I totally agree with you, the given code is just an incomplete example due to SL limitations.. Do you have some fully working program? Share it with us! :)

Answer 2

I have not written my own one (yet), but just the other day I found this video.
https://youtu.be/0PM10vOtd6o
It explains how bruteforce works and I learned a lot from it (It is in java, just like the code of @thex).

Answer 3

Another example, this one cracks SHA1 hashes...
https://code.sololearn.com/cpZmxS2B8657/#py

Answer 4

@MrCoder Thanks for sharing! Here is a little program I wrote some time ago, it uses brute force algorithm to create lists of passwords or dictionaries (like Hashcat does, but easier to use):

https://bitbucket.org/ksaver/kranky/src/45d3d1b53e878dc5a7729b34f3745254df7823f2/src/kranky.py

Answer 5

Here is an example code written in Python:
https://code.sololearn.com/cd8Y1zz4Qkg5/#py

Due to SoloLearn Time Limits, charset contains a limited set of characters, but in your Python interpreter you can try it with some larger samples..

Answer 6

How about this :P. Written in Java.

https://code.sololearn.com/cdB72Z8jCETo

but not working well in playground with many places because of memory limit ;)

--------------
Ad: In the meantime I also created a recursive version. Here the link to both projects on Github I uploaded the iterative and the recursive. The iterative is the same like the one I uploaded to Codelearn.

https://github.com/thexmanxyz/kata-bruteforce-iterative
https://github.com/thexmanxyz/kata-bruteforce-recursive

Answer 7

Just giving this info what a REAL Brute Force is

Your code must never use the password, You can't use its length and contents in the code. Also it is like
aaa
aab
aac
...
aaz
aba

Answer 8

You sure do use your own algorithm :) It's nice, my code is shortened because of .next! function in rb

Answer 9

my try...with automatic key length setter...

https://code.sololearn.com/c3vprJdNVDJY/?ref=app

Answer 10

Enjoyed this, thanks. Not the most pythonic and there's at least one too many variables being passed to the sub
https://code.sololearn.com/c1lsvj0olzJF/?ref=app

Answer 11

Thank you :), Yes I do have a brute force software I'm afraid it lacks some feature, I'll put it in github then I'll put the link :D

Answer 12

@noobcøder Here you go buddy

https://github.com/Z34O/brute-force

Answer 13

@The Coding Sloth, that's a nice recursive solution mine is just iterative :). I watched the video right now. I will try that one later.