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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:</