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.

EXAMPLE

       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 2016-2018 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>.

1.1.1a								    2018-12-18							      ENGINE(1SSL)