105 lines
2.6 KiB
Plaintext
105 lines
2.6 KiB
Plaintext
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=pod
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=head1 NAME
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openssl-speed,
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speed - test library performance
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=head1 SYNOPSIS
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B<openssl speed>
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[B<-help>]
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[B<-engine id>]
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[B<-elapsed>]
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[B<-evp algo>]
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[B<-decrypt>]
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[B<-rand file...>]
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[B<-writerand file>]
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[B<-primes num>]
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[B<-seconds num>]
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[B<-bytes num>]
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[B<algorithm...>]
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=head1 DESCRIPTION
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This command is used to test the performance of cryptographic algorithms.
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To see the list of supported algorithms, use the I<list --digest-commands>
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or I<list --cipher-commands> command. The global CSPRNG is denoted by
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the I<rand> algorithm name.
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=head1 OPTIONS
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=over 4
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=item B<-help>
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Print out a usage message.
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=item B<-engine id>
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Specifying an engine (by its unique B<id> string) will cause B<speed>
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to attempt to obtain a functional reference to the specified engine,
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thus initialising it if needed. The engine will then be set as the default
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for all available algorithms.
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=item B<-elapsed>
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When calculating operations- or bytes-per-second, use wall-clock time
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instead of CPU user time as divisor. It can be useful when testing speed
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of hardware engines.
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=item B<-evp algo>
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Use the specified cipher or message digest algorithm via the EVP interface.
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If B<algo> is an AEAD cipher, then you can pass <-aead> to benchmark a
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TLS-like sequence. And if B<algo> is a multi-buffer capable cipher, e.g.
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aes-128-cbc-hmac-sha1, then B<-mb> will time multi-buffer operation.
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=item B<-decrypt>
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Time the decryption instead of encryption. Affects only the EVP testing.
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=item B<-rand file...>
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A file or files containing random data used to seed the random number
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generator.
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Multiple files can be specified separated by an OS-dependent character.
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The separator is B<;> for MS-Windows, B<,> for OpenVMS, and B<:> for
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all others.
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=item [B<-writerand file>]
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Writes random data to the specified I<file> upon exit.
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This can be used with a subsequent B<-rand> flag.
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=item B<-primes num>
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Generate a B<num>-prime RSA key and use it to run the benchmarks. This option
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is only effective if RSA algorithm is specified to test.
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=item B<-seconds num>
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Run benchmarks for B<num> seconds.
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=item B<-bytes num>
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Run benchmarks on B<num>-byte buffers. Affects ciphers, digests and the CSPRNG.
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=item B<[zero or more test algorithms]>
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If any options are given, B<speed> tests those algorithms, otherwise a
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pre-compiled grand selection is tested.
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=back
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=head1 COPYRIGHT
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Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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