openssl-speed, speed - test library performance
openssl speed [-help] [-engine id] [-elapsed]
[-evp algo] [-decrypt] [-rand file...] [-writerand
file] [-primes num] [-seconds num] [-bytes num]
This command is used to test the performance of cryptographic algorithms. To see
the list of supported algorithms, use the list --digest-commands or
list --cipher-commands command. The global CSPRNG is denoted by the
rand algorithm name.
Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
- Print out a usage message.
- -engine id
- Specifying an engine (by its unique id string) will cause
speed to attempt to obtain a functional reference to the specified
engine, thus initialising it if needed. The engine will then be set as the
default for all available algorithms.
- 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.
- Time the decryption instead of encryption. Affects only the EVP
- -rand file...
- A file or files containing random data used to seed the random number
generator. Multiple files can be specified separated by an OS-dependent
character. The separator is ; for MS-Windows, , for OpenVMS,
and : for all others.
- [-writerand file]
- Writes random data to the specified file upon exit. This can be
used with a subsequent -rand flag.
- -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
- [zero or more test algorithms]
- If any options are given, speed tests those algorithms, otherwise a
pre-compiled grand selection is tested.
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