Collaborate Disseminate
There is an argument that if the Proof-of-Work (PoW) mechanism is removed from the Bitcoin network or if the puzzle does not have a sufficient level of difficulty proportional to the computing power of the network, the chaining of transact… Continue reading Is PoW an indispensable component in blockchain? [closed]
As far as I’ve heard, hashing a disk image before computer forensics is started, and then comparing that hash to a new hash after the forensics is finished is the most common way to make sure that there is no tampering with the disk during… Continue reading Are there better methods of sustaining forensic integrity apart from disk hashing?
I’ve been looking at hash security, and how tools like hashcat and John The Ripper work. I seem to have misunderstood some basic stuff, and would appreciate some clarification on:
If you’re pen testing, and you’ve got a hash that you’re t… Continue reading Hash security and penetration testing [closed]
pbkdf2:sha256:600000$m28HtZYwJYMjkhJ5$2d481c9f3fe597390e4c4192f762188bf311e834030a11e069019015fb336c14
This is the format in which I have the hash. I also have a dictionary which consists of the actual password. How do I use some tool (lik… Continue reading Crack hash with given salt and dictionary
Being interested in security, hashing in particular, I thought of a strategy that could either help or compromise password security.
The main way to ‘break’ hashes is to brute force them.
So, while sometimes it is hard to tell, most of the… Continue reading Is this idea for secure password storage a good one?
I’m working on making an end-to-end encrypted app that will store sensitive mental health information. The goal is to make it completely impossible for someone with access to the server to see the users raw data. The server acts only as a … Continue reading Is it safe to derive the salt from the users email/phone number when pre-hashing a password to be sent to a server?
Background:
We have an application with password authentication. We now need to raise the number of PBKDF2-iterations and this means that the login takes quite a bit longer than before. Therefore, instead of a spinning wheel animation, we … Continue reading How to track PBKDF2 progress?
Ok- so you all probably know that a hash is used to help secure a stored password in a database, if it was stolen.
When a user logs in, and enters a password, it gets hashed, and then matched to a hash in the name of the user that tried to… Continue reading How do databases/companies change their hashing algorithm? [duplicate]
The Task is kind of a CTF task that I was given and I have no idea how to do this.
I had to crack a password on a zipfile and then crack the 3 hashes in the txt file within the zip file. I cracked the zip fine and I used ophcrack on the tx… Continue reading Is there anyway to crack this salted Hash? [closed]
I’m trying to learn how to unlock locked zipfiles. And every hash I try keeps being "unknown". I’ve tried HashID and online programs but they all return unknown.
Hash:
testing.zip/testing.txt:$zip2$*0*3*0*fe981abbfdd3fa778be4a005… Continue reading Unknown Hash ID [closed]