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9 votes
1 answer
21k views

Bruteforce with hashcat, how to set the mask properly?

Let's say I've an hash of this type: test::::4e45c7bab093d7011e9b3a5df7d9fa88212beac5ac9c8c47:d6ff3373aa353f3b:123456 I would like to bruteforce it using hashcat, but I'm failing to set the correct ...
MeaMelone's user avatar
36 votes
2 answers
44k views

Why are GPUs so good at cracking passwords?

What is it about GPUs that lets them crack passwords so quickly? It seems like the driving force behind adopting good key-derivation functions for passwords (bcrpyt, PBKDF2, scrypt) instead of ...
Nick's user avatar
  • 465
9 votes
3 answers
10k views

Which is faster - brute-forcing, or using a dictionary attack that contains all possible permutations?

Assuming a 6-character password uses the mixalphanumeric charset, giving each character a character set of 62 and the entire password a keyspace of 62^6 = 46.6 billion (if my calculations are correct)....
Hashim Aziz's user avatar
1 vote
2 answers
10k views

Brute-Forcing DVWA login page with hydra

I'm learning how to brute force web login pages with a popular brute force tool called "Hydra". I'm using Kali Linux (VirtualBox) to do this. I've installed DVWA (Damn Vulnerable Web Application) and ...
CoderPE's user avatar
  • 11
21 votes
5 answers
8k views

Would allowing shorter passwords sometimes be more secure?

Does the act of requiring certain criteria for passwords make them easier to brute-force? It's always seemed to me that when websites limit the use of "insecure" passwords, it might make it easier ...
MisterEman22's user avatar
4 votes
1 answer
17k views

how to get cookies from aspx site to use it with hydra

I've been playing around with Hydra and .aspx site and I've hit a bit of a snag - Hydra responds letting me know that the first 16 passwords in my password list are correct when none of them are. ...
user3306821's user avatar
3 votes
1 answer
3k views

Pointers for john the ripper rulesets

I've been pouring over the JtR ruleset documentation and making little progress. I understand how to use it to make various permutations from a given wordlist, that's fine. However, I'm trying to ...
EricR's user avatar
  • 133
3 votes
1 answer
20k views

How long it will take to crack a RAR password?

I wonder how long it will take to crack 16 character alphanumeric WinRAR password for a mini supercomputer. As far as I know graphic cards are preferred over CPUs to crack passwords nowadays. If we ...
ilhan's user avatar
  • 415
0 votes
1 answer
4k views

How can hackers get 1 billion passwords per second?

So I'm interested in Brute Force attacks and I have made them with Python 3 and C++. However, those only reached a max of about 20 million passwords per second. I know for a fact that 1 billion ...
J. Doe's user avatar
  • 11