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ENCRYPT(1)                 OpenBSD Reference Manual                 ENCRYPT(1)

NAME
     encrypt - encrypt passwords from the command line or standard input

SYNOPSIS
     encrypt [-k] [-b rounds] [-c class] [-m] [-s salt] [-p | string]
     makekey

DESCRIPTION
     encrypt prints the encrypted form of string to the standard output.  This
     is mostly useful for encrypting passwords from within scripts.

     The options are as follows:

     -k      Run in makekey compatible mode; a single combined key and salt
             are read from standard input and the DES encrypted result is
             written to standard output without a terminating newline.

     -b rounds
             Encrypt the string using Blowfish hashing with the specified
             rounds.

     -c class
             Use the cipher type specified in the given user login class.  See
             login.conf(5) for more information.

     -m      Encrypt the string using MD5.

     -p      Prompt for a single string with echo turned off.

     -s salt
             Encrypt the string using DES, with the specified salt.

     If no string is specified, encrypt reads one string per line from stan-
     dard input, encrypting each one with the chosen algorithm from above.  In
     the case where no specific algorithm or specific user login class was
     given as a command line option, the algorithm specified in the default
     class in /etc/login.conf will be used.

     For MD5 and Blowfish, a new random salt is automatically generated for
     each password.

     Specifying the string on the command line should be discouraged; using
     the standard input is more secure.

FILES
     /etc/login.conf

SEE ALSO
     crypt(3), login.conf(5)

HISTORY
     encrypt first appeared in OpenBSD 1.2.

     A makekey command appeared in Version 7 AT&T UNIX.

OpenBSD 3.6                      May 18, 1999                                1