Do identical passwords have the same hash?
The probability that two users with the same password would get identical hashes is negligible; The probability that two users with different passwords will get salts that produce identical hash results is also negligible.
What is one-way hash password?
A one-way hash function is a cryptographic algorithm that turns an arbitrary-length input into a fixed-length binary value, and this transformation is one-way, that is, given a hash value it is statistically infeasible to re-create a document that would produce this value. If the hashes match the user is authenticated.
How does a hash of a password work?
The result is like a unique fingerprint, called the digest, that cannot be reversed to find the original input. So, even if someone gets access to the database storing your hash password, there is no key to decrypt it back to its original form. In general, here’s how hashing systems work when you log in to an account:
Are there any password hashes that are difficult to hack?
Better hashing function options are computationally expensive and therefore more difficult to hack. These are some better hashing algorithms that will minimize password security risks in your application: Argon2 — Winner of the password hashing competition. Uses a lot of memory, so it’s difficult to attack.
When to look for password hashes in AD?
On a Penetration Test, once you’ve scored Domain Admin (DA) Access, it’s generally a good idea to take a look at the hashes stored in Active Directory (AD).
Is there a way to crack all passwords at once?
Whereas the attacks above require trying repeatedly to login, if you have a list of hashed passwords, you can try cracking them on your machine, without setting off alerts generated by repeated failed login attempts. Then you only try logging in once, after you’ve successfully cracked the password (and therefore there’s no failed login attempt).