Manual: openssl-speed

OPENSSL-SPEED(1SSL)					   OpenSSL					 OPENSSL-SPEED(1SSL)

NAME
       openssl-speed - test library performance

SYNOPSIS
       openssl speed [-help] [-config filename] [-elapsed] [-evp algo] [-hmac algo] [-cmac algo] [-mb] [-aead]
       [-kem-algorithms] [-signature-algorithms] [-multi num] [-async_jobs num] [-misalign num] [-decrypt] [-primes num]
       [-seconds num] [-bytes num] [-mr] [-mlock] [-testmode] [-rand files] [-writerand file] [-engine id] [-provider name]
       [-provider-path path] [-provparam [name:]key=value] [-propquery propq] [algorithm ...]

DESCRIPTION
       This command is used to test the performance of cryptographic algorithms.

OPTIONS
       -help
	   Print out a usage message.

       -config filename
	   Specifies the configuration file to use.  Optional; for a description of the default value, see "COMMAND SUMMARY"
	   in openssl(1).

       -elapsed
	   When calculating operations- or bytes-per-second, use wall-clock time instead of CPU user time as divisor. It can
	   be useful when testing speed of hardware engines.

       -evp algo
	   Use	the specified cipher or message digest algorithm via the EVP interface.	 If algo is an AEAD cipher, then you
	   can pass -aead  to  benchmark  a  TLS-like  sequence.  And  if  algo	 is  a	multi-buffer  capable  cipher,	e.g.
	   aes-128-cbc-hmac-sha1, then -mb will time multi-buffer operation.

	   To  see  the	 algorithms  supported	with  this  option,  use  "openssl list -digest-algorithms" or "openssl list
	   -cipher-algorithms" command.

       -multi num
	   Run multiple operations in parallel.

       -async_jobs num
	   Enable async mode and start specified number of jobs.

       -misalign num
	   Misalign the buffers by the specified number of bytes.

       -hmac digest
	   Time the HMAC algorithm using the specified message digest.

       -cmac cipher
	   Time the CMAC algorithm using the specified cipher e.g.  "openssl speed -cmac aes128".

       -decrypt
	   Time the decryption instead of encryption. Affects only the EVP testing.

       -mb Enable multi-block mode on EVP-named cipher.

       -aead
	   Benchmark EVP-named AEAD cipher in TLS-like sequence.

       -kem-algorithms
	   Benchmark KEM algorithms: key generation, encapsulation, decapsulation.

       -signature-algorithms
	   Benchmark signature algorithms: key generation, signature, verification.

       -primes num
	   Generate a num-prime RSA key and use it to run the benchmarks. This option is only effective if RSA algorithm  is
	   specified to test.

       -seconds num
	   Run benchmarks for num seconds.

       -bytes num
	   Run benchmarks on num-byte buffers. Affects ciphers, digests and the CSPRNG.	 The limit on the size of the buffer
	   is INT_MAX - 64 bytes, which for a 32-bit int would be 2147483583 bytes.

       -mr Produce the summary in a mechanical, machine-readable, format.

       -mlock
	   Lock memory into RAM for more deterministic measurements.

       -testmode
	   Runs	 the  speed  command  in  testmode.  Runs only 1 iteration of each algorithm test regardless of any -seconds
	   value. In the event that any operation fails then the speed command will return with a failure result.

       -rand files, -writerand file
	   See "Random State Options" in openssl(1) for details.

       -engine id
	   See "Engine Options" in openssl(1).	This option is deprecated.

       -provider name
       -provider-path path
       -provparam [name:]key=value
       -propquery propq
	   See "Provider Options" in openssl(1), provider(7), and property(7).

       algorithm ...
	   If any algorithm is given, then those algorithms are tested, otherwise a pre-compiled grand selection is tested.

BUGS
       The algorithm can be selected only from a pre-compiled subset of things that the "openssl speed" command knows about.
       To test any additional digest or cipher algorithm supported by OpenSSL use the "-evp" option.

       There is no way to test the speed of any additional public key algorithms supported by third party providers with the
       "openssl speed" command.

HISTORY
       The -engine option was deprecated in OpenSSL 3.0.

       DSA512 was removed in OpenSSL 3.2.

       The -testmode option was added in OpenSSL 3.4.

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
       .

3.5.5							 2026-01-27					 OPENSSL-SPEED(1SSL)