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35a810bb1d
Almost all OpenSSL commands are in reality 'openssl cmd', so make sure
they are refered to like that and not just as the sub-command.
Self-references are avoided as much as is possible, and replaced with
"this command". In some cases, we even avoid that with a slight
rewrite of the sentence or paragrah they were in. However, in the few
cases where a self-reference is still admissible, they are done in
bold, i.e. openssl-speed.pod references itself like this:
B<openssl speed>
References to other commands are done as manual links, i.e. CA.pl.pod
references 'openssl req' like this: L<openssl-req(1)>
Some commands are examples rather than references; we enclose those in
C<>.
While we are it, we abolish "utility", replacing it with "command", or
remove it entirely in some cases.
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10065)
116 lines
2.9 KiB
Plaintext
116 lines
2.9 KiB
Plaintext
=pod
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=head1 NAME
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openssl-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> I<id>]
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[B<-elapsed>]
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[B<-evp> I<algo>]
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[B<-hmac> I<algo>]
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[B<-cmac> I<algo>]
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[B<-decrypt>]
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[B<-rand> I<files>]
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[B<-writerand> I<file>]
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[B<-primes> I<num>]
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[B<-seconds> I<num>]
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[B<-bytes> I<num>]
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[I<algorithm> ...]
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=for comment ifdef cmac multi async_jobs engine
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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 C<openssl list -digest-commands>
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or C<openssl list -cipher-commands> command. The global CSPRNG is denoted by
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the B<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> I<id>
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Specifying an engine (by its unique I<id> string) will cause this command
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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> I<algo>
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Use the specified cipher or message digest algorithm via the EVP interface.
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If I<algo> is an AEAD cipher, then you can pass B<-aead> to benchmark a
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TLS-like sequence. And if I<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<-hmac> I<digest>
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Time the HMAC algorithm using the specified message digest.
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=item B<-cmac> I<cipher>
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Time the CMAC algorithm using the specified cipher e.g.
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C<openssl speed -cmac aes128>.
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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> I<files>
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The files containing random data used to seed the random number 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> I<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> I<num>
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Generate a I<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> I<num>
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Run benchmarks for I<num> seconds.
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=item B<-bytes> I<num>
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Run benchmarks on I<num>-byte buffers. Affects ciphers, digests and the CSPRNG.
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=item I<algorithm> ...
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If any I<algorithm> is given, then those algorithms are tested, 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 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (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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