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 computers. Within the market of desktop and lapt ...
. 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" s ...
,
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 compression ...
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' Publ ...
) 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 OpenVMS) ...
.
The latest stable release is designed specifically for Mac OS X Lion and Mountain Lion.
Attack Methods
DaveGrohl supports both
dictionary
A dictionary is a listing of lexemes from the lexicon of one or more specific languages, often arranged alphabetically (or by radical and stroke for ideographic languages), which may include information on definitions, usage, etymologies ...
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 try ...
*
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 monito ...
*
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, Hāb ...
*
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, MD4, ...
*
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 OpenVMS) ...
References
External links
*
Cracking Mac OS Lion Passwords
{{Password Cracking Software
Password cracking software
Free security software