plucky (1) openssl-passphrase-options.1ssl.gz

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
           Reads the password from the specified file pathname, which can be a regular file, device, or named
           pipe. Only the first line, up to the newline character, is read from the stream.

           If the same pathname argument is supplied to both -passin and -passout arguments, the first line will
           be used for the input password, and the next line will be used for the output password.

       fd:number
           Reads the password from the file descriptor number. This can be useful for sending data via a pipe,
           for example. The same line handling as described for file: applies to passwords read from file
           descriptors.

           fd: is not supported on Windows.

       stdin
           Reads the password from standard input. The same line handling as described for file: applies to
           passwords read from standard input.

COPYRIGHT

       Copyright 2000-2024 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>.