DaveGrohl is a
brute-force password cracker for
macOS
macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac (computer), Mac computers. Within the market of ...
. It was originally created in 2010 as a password hash extractor but has since evolved into a standalone or distributed password cracker. DaveGrohl supports all of the standard Mac OS X user password hashes (
MD4
The MD4 Message-Digest Algorithm is a cryptographic hash function developed by Ronald Rivest in 1990. The digest length is 128 bits. The algorithm has influenced later designs, such as the MD5, SHA-1 and RIPEMD algorithms. The initialism "MD" ...
,
SHA-512
SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic hash functions designed by the United States National Security Agency (NSA) and first published in 2001. They are built using the Merkle–Damgård construction, from a one-way compressi ...
and
PBKDF2
In cryptography, PBKDF1 and PBKDF2 (Password-Based Key Derivation Function 1 and 2) are key derivation functions with a sliding computational cost, used to reduce vulnerabilities of brute-force attacks.
PBKDF2 is part of RSA Laboratories' Pu ...
) used since OS X Lion and also can extract them formatted for other popular password crackers like
John the Ripper
John the Ripper is a free password cracking software tool. Originally developed for the Unix operating system, it can run on fifteen different platforms (eleven of which are architecture-specific versions of Unix, DOS, Win32, BeOS, and OpenVM ...
.
The latest stable release is designed specifically for Mac OS X Lion and Mountain Lion.
Attack Methods
DaveGrohl supports both
dictionary and incremental attacks. A dictionary attack will scan through a number of pre-defined wordlists while an incremental attack will count through a character set until it finds the password. While in distributed mode, it uses
Bonjour
Bonjour is a French word meaning (literally translated) "good day", and is commonly used as a greeting.
Bonjour may also refer to:
People
* Laurence BonJour (born 1943), epistemologist and professor of philosophy at the University of Washington
* ...
to find all the server nodes on the local network and therefore requires no configuration.
See also
*
Password cracking
In cryptanalysis and computer security, password cracking is the process of recovering passwords from data that has been stored in or transmitted by a computer system in scrambled form. A common approach ( brute-force attack) is to repeatedly t ...
*
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 ...
*
Aircrack-ng
Aircrack-ng is a network software suite consisting of a detector, packet sniffer, WEP and WPA/ WPA2-PSK cracker and analysis tool for 802.11 wireless LANs. It works with any wireless network interface controller whose driver supports raw mon ...
*
Cain and Abel
In the biblical Book of Genesis, Cain ''Qayīn'', in pausa ''Qāyīn''; gr, Κάϊν ''Káïn''; ar, قابيل/قايين, Qābīl / Qāyīn and Abel ''Heḇel'', in pausa ''Hāḇel''; gr, Ἅβελ ''Hábel''; ar, هابيل, Hābīl ...
*
Crack
*
Hashcat
Hashcat is a password recovery tool. It had a proprietary code base until 2015, but was then released as open source software. Versions are available for Linux, OS X, and Windows. Examples of hashcat-supported hashing algorithms are LM hashes, MD ...
*
John the Ripper
John the Ripper is a free password cracking software tool. Originally developed for the Unix operating system, it can run on fifteen different platforms (eleven of which are architecture-specific versions of Unix, DOS, Win32, BeOS, and OpenVM ...
References
External links
*
Cracking Mac OS Lion Passwords
{{Password Cracking Software
Password cracking software
Free security software