ENGINE(1SSL) OpenSSL ENGINE(1SSL)
NAME
openssl-engine, engine - load and query engines
SYNOPSIS
openssl engine [ engine... ] [-v] [-vv] [-vvv] [-vvv] [-vvv] [-c] [-t]
[-tt] [-pre command] [-post command] [ engine... ]
DESCRIPTION
The engine command is used to query the status and capabilities of the
specified engine's. Engines may be specified before and after all
other command-line flags. Only those specified are queried.
OPTIONS
-v -vv -vvv -vvvv
Provides information about each specified engine. The first flag
lists all the possible run-time control commands; the second adds a
description of each command; the third adds the input flags, and
the final option adds the internal input flags.
-c Lists the capabilities of each engine.
-t Tests if each specified engine is available, and displays the
answer.
-tt Displays an error trace for any unavailable engine.
-pre command
-post command
Command-line configuration of engines. The -pre command is given
to the engine before it is loaded and the -post command is given
after the engine is loaded. The command is of the form cmd:val
where cmd is the command, and val is the value for the command.
See the example below.
EXAMPLES
To list all the commands available to a dynamic engine:
$ openssl engine -t -tt -vvvv dynamic
(dynamic) Dynamic engine loading support
[ unavailable ]
SO_PATH: Specifies the path to the new ENGINE shared library
(input flags): STRING
NO_VCHECK: Specifies to continue even if version checking fails (boolean)
(input flags): NUMERIC
ID: Specifies an ENGINE id name for loading
(input flags): STRING
LIST_ADD: Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)
(input flags): NUMERIC
DIR_LOAD: Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)
(input flags): NUMERIC
DIR_ADD: Adds a directory from which ENGINEs can be loaded
(input flags): STRING
LOAD: Load up the ENGINE specified by other settings
(input flags): NO_INPUT
To list the capabilities of the rsax engine:
$ openssl engine -c
(rsax) RSAX engine support
[RSA]
(dynamic) Dynamic engine loading support
ENVIRONMENT
OPENSSL_ENGINES
The path to the engines directory.
SEE ALSO
config(5)
COPYRIGHT
Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (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>.
1.1.1g 2020-04-21 ENGINE(1SSL)