1ENGINE(1)                           OpenSSL                          ENGINE(1)
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NAME

6       openssl-engine, engine - load and query engines
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SYNOPSIS

9       openssl engine [ engine... ] [-v] [-vv] [-vvv] [-vvv] [-vvv] [-c] [-t]
10       [-tt] [-pre command] [-post command] [ engine... ]
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DESCRIPTION

13       The engine command is used to query the status and capabilities of the
14       specified engine's.  Engines may be specified before and after all
15       other command-line flags.  Only those specified are queried.
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OPTIONS

18       -v -vv -vvv -vvvv
19           Provides information about each specified engine. The first flag
20           lists all the possible run-time control commands; the second adds a
21           description of each command; the third adds the input flags, and
22           the final option adds the internal input flags.
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24       -c  Lists the capabilities of each engine.
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26       -t  Tests if each specified engine is available, and displays the
27           answer.
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29       -tt Displays an error trace for any unavailable engine.
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31       -pre command
32       -post command
33           Command-line configuration of engines.  The -pre command is given
34           to the engine before it is loaded and the -post command is given
35           after the engine is loaded.  The command is of the form cmd:val
36           where cmd is the command, and val is the value for the command.
37           See the example below.
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EXAMPLES

40       To list all the commands available to a dynamic engine:
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42        $ openssl engine -t -tt -vvvv dynamic
43        (dynamic) Dynamic engine loading support
44             [ unavailable ]
45             SO_PATH: Specifies the path to the new ENGINE shared library
46                  (input flags): STRING
47             NO_VCHECK: Specifies to continue even if version checking fails (boolean)
48                  (input flags): NUMERIC
49             ID: Specifies an ENGINE id name for loading
50                  (input flags): STRING
51             LIST_ADD: Whether to add a loaded ENGINE to the internal list (0=no,1=yes,2=mandatory)
52                  (input flags): NUMERIC
53             DIR_LOAD: Specifies whether to load from 'DIR_ADD' directories (0=no,1=yes,2=mandatory)
54                  (input flags): NUMERIC
55             DIR_ADD: Adds a directory from which ENGINEs can be loaded
56                  (input flags): STRING
57             LOAD: Load up the ENGINE specified by other settings
58                  (input flags): NO_INPUT
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60       To list the capabilities of the rsax engine:
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62        $ openssl engine -c
63        (rsax) RSAX engine support
64         [RSA]
65        (dynamic) Dynamic engine loading support
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ENVIRONMENT

68       OPENSSL_ENGINES
69           The path to the engines directory.
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SEE ALSO

72       config(5)
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75       Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
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77       Licensed under the OpenSSL license (the "License").  You may not use
78       this file except in compliance with the License.  You can obtain a copy
79       in the file LICENSE in the source distribution or at
80       <https://www.openssl.org/source/license.html>.
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841.1.1g                            2020-04-23                         ENGINE(1)
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