NAME

       openssl-passphrase-options - Pass phrase options

SYNOPSIS

       openssl command [ options ... ] [ parameters ... ]

DESCRIPTION

       Several OpenSSL commands accept password arguments, typically using -passin and -passout for input and
       output passwords respectively. These allow the password to be obtained from a variety of sources. Both of
       these options take a single argument whose format is described below. If no password argument is given
       and a password is required then the user is prompted to enter one: this will typically be read from the
       current terminal with echoing turned off.

       Note that character encoding may be relevant, please see passphrase-encoding(7).

OPTIONS

   Pass Phrase Option Arguments
       Pass phrase arguments can be formatted as follows.

       pass:password
           The  actual  password  is password. Since the password is visible to utilities (like 'ps' under Unix)
           this form should only be used where security is not important.

       env:var
           Obtain the password from the environment variable var. Since the environment of  other  processes  is
           visible  on  certain  platforms  (e.g.  ps  under  certain Unix OSes) this option should be used with
           caution.

       file:pathname
           The first line of pathname is the password. If the same pathname argument is supplied to -passin  and
           -passout  arguments then the first line will be used for the input password and the next line for the
           output password. pathname need not refer to a regular file: it could for example refer to a device or
           named pipe.

       fd:number
           Read the password from the file descriptor number. This can be used to send the data via a  pipe  for
           example.

       stdin
           Read the password from standard input.

COPYRIGHT

       Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.

       Licensed  under  the  Apache License 2.0 (the "License").  You may not use this file except in compliance
       with the License.  You can obtain  a  copy  in  the  file  LICENSE  in  the  source  distribution  or  at
       <https://www.openssl.org/source/license.html>.

3.0.13                                             2025-02-05                   OPENSSL-PASSPHRASE-OPTIONS(1SSL)