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openssl-speed - test library performance


openssl speed [-help] [-elapsed] [-evp algo] [-hmac algo] [-cmac algo] [-mb] [-aead] [-multi num] [-async_jobs num] [-misalign num] [-decrypt] [-primes num] [-seconds num] [-bytes num] [-mr] [-rand files] [-writerand file] [-engine id] [-provider name] [-provider-path path] [-propquery propq] [algorithm ...]


This command is used to test the performance of cryptographic algorithms. To see the list of supported algorithms, use "openssl list -digest-commands" or "openssl list -cipher-commands" command. The global CSPRNG is denoted by the rand algorithm name.


Print out a usage message.
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.
-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".
Time the decryption instead of encryption. Affects only the EVP testing.
-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.
Produce the summary in a mechanical, machine-readable, format.
-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
-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.


The -engine option was deprecated in OpenSSL 3.0.


Copyright 2000-2020 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 <>.

2021-05-06 3.0.0-alpha16