man-bruteforce

BRUTEFORCE(1)                               BSD General Commands Manual                     BRUTEFORCE(1)

NAME
    bruteforce - a trial and error method used by application programs to decode encrypted data such as      passwords

SYNOPSIS/USAGE
    bruteforce [ip_address]

DESCRIPTION
    In cryptography, a brute-force attack, or exhaustive key search, is a cryptanalytic attack that can,     in theory, be used against any encrypted data. Brute-force attacks are an application of brute-force     search, the general problem-solving technique of enumerating all candidates and checking each one.