Is this possible to brute force?

[idop]

Hi guys,

I'm trying to brute a password, known to be between 12-25 characters, here is the list of possible chars:

Code:

ertyudfghjcvbnm34567

Can be uppercase or lowercase and in any order, but no other char or number (only the above).

I have the 5000-iteration sha256 hash of the password.

Is this something that can be brute forced? or I'm wasting my time?

I am going to rent GPUs to do it (RTX 3090).

It will be really helpful if some one can give a mere estimate on how much it will take with this GPU.

[Chick3nman]

That keyspace is far too large for you to be able to bruteforce, even with the limited character set and at the lowest length of 12.

Edit: Some math for proofing

20 characters, 12 length, so 20^12 as total number of candidates, divided by a speed of roughly 2MH/s on a 3090 will give you approx 23703 days on 1x 3090. Or, 1 day on approx 23703x 3090. Each length longer than 12 increases this keyspace exponentially.

[idop]

That keyspace is far too large for you to be able to bruteforce, even with the limited character set and at the lowest length of 12.

Edit: Some math for proofing

20 characters, 12 length, so 20^12 as total number of candidates, divided by a speed of roughly 2MH/s on a 3090 will give you approx 23703 days on 1x 3090. Or, 1 day on approx 23703x 3090. Each length longer than 12 increases this keyspace exponentially.

Understood, Thank you very much for the estimate too, very helpful.