The problem for crackers was that they were hashed using bcrypt and all but a fraction of them were too strong to break in any kind of reasonable time frame. Besides several crypt (3) password hash types most commonly found on various Unix systems, supported out of the box are Windows LM hashes, plus lots of other hashes and. John the Ripper uses several cracking modes that crack hashed password. Its primary purpose is to detect weak Unix passwords. Its main purpose is to detact weak Passwords. If you remember a few years ago there was a breach of the Ashley Madison website and 36 million password hashes were leaked. John the Ripper is a fast password cracker, currently available for many flavors of Unix, Windows, DOS, BeOS, and OpenVMS. ![]() Unlike the other hash algorithms we’ve encountered so far bcrypt is specifically designed to be slow to crack, especially for GPUs, and you can see that reflected very poignantly in the screenshot below. John -format=bcrypt -wordlist=/usr/share/wordlists/rockyou.txt hash1_4.txt ![]() Hashcat -m 3200 hash1_4.txt /usr/share/wordlists/rockyou.txt Hash: $2y$12$Dwt1BZj6pcyc3Dy1FWZ5ieeUznr71EeNkJkUlypTsgbX1H68wsRom
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