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2. Password strength - Wikipedia

   en.wikipedia.org/wiki/Password_strength

   Password expiration was previously trying to serve two purposes: [56] If the time to crack a password is estimated to be 100 days, password expiration times fewer than 100 days may help ensure insufficient time for an attacker. If a password has been compromised, requiring it to be changed regularly may limit the access time for the attacker.

3. Password cracking - Wikipedia

   en.wikipedia.org/wiki/Password_cracking

   In cryptanalysis and computer security, password cracking is the process of guessing passwords [1] protecting a computer system. A common approach (brute-force attack) is to repeatedly try guesses for the password and to check them against an available cryptographic hash of the password. [2] Another type of approach is password spraying, which ...

4. Key stretching - Wikipedia

   en.wikipedia.org/wiki/Key_stretching

   Key stretching. In cryptography, key stretching techniques are used to make a possibly weak key, typically a password or passphrase, more secure against a brute-force attack by increasing the resources (time and possibly space) it takes to test each possible key. Passwords or passphrases created by humans are often short or predictable enough ...

5. Hydra (software) - Wikipedia

   en.wikipedia.org/wiki/Hydra_(software)

   Hydra works by using different approaches to perform brute-force attacks in order to guess the right username and password combination. Hydra is commonly used by penetration testers together with a set of programmes like crunch, [3] cupp [4] etc, which are used to generate wordlists. Hydra is then used to test the attacks using the wordlists ...

6. Rainbow table - Wikipedia

   en.wikipedia.org/wiki/Rainbow_table

   Rainbow table. A rainbow table is a precomputed table for caching the outputs of a cryptographic hash function, usually for cracking password hashes. Passwords are typically stored not in plain text form, but as hash values. If such a database of hashed passwords falls into the hands of attackers, they can use a precomputed rainbow table to ...

7. Brute-force attack - Wikipedia

   en.wikipedia.org/wiki/Brute-force_attack

   An infographic showing the time it takes to brute force a password using 12 x RTX 4090 GPU's against the bcrypt password hashing algorithm. [1] In cryptography, a brute-force attack consists of an attacker submitting many passwords or passphrases with the hope of eventually guessing correctly. The attacker systematically checks all possible ...

8. Pass the hash - Wikipedia

   en.wikipedia.org/wiki/Pass_the_hash

   If an attacker has the hashes of a user's password, they do not need the cleartext password; they can simply use the hash to authenticate with a server and impersonate that user. [4] [5] [6] [permanent dead link] In other words, from an attacker's perspective, hashes are functionally equivalent to the original passwords that they were generated ...

9. Crack (password software) - Wikipedia

   en.wikipedia.org/wiki/Crack_(password_software)

   Crack is a Unix password cracking program designed to allow system administrators to locate users who may have weak passwords vulnerable to a dictionary attack.Crack was the first standalone password cracker for Unix systems and the first to introduce programmable dictionary generation as well.