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speed: Document the deficiencies of the command

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Fixes #7032

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15330)
This commit is contained in:
Tomas Mraz 2021-05-18 15:23:04 +02:00
parent cf6cba90d5
commit b41ebb991e
1 changed files with 13 additions and 3 deletions
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16
doc/man1/openssl-speed.pod.in
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@ -30,9 +30,6 @@ B<openssl speed>
=head1 DESCRIPTION =head1 DESCRIPTION
This command is used to test the performance of cryptographic algorithms. This command is used to test the performance of cryptographic algorithms.
To see the list of supported algorithms, use C<openssl list -digest-commands>
or C<openssl list -cipher-commands> command. The global CSPRNG is denoted by
the B<rand> algorithm name.
=head1 OPTIONS =head1 OPTIONS
@ -55,6 +52,10 @@ If I<algo> is an AEAD cipher, then you can pass B<-aead> to benchmark a
TLS-like sequence. And if I<algo> is a multi-buffer capable cipher, e.g. TLS-like sequence. And if I<algo> is a multi-buffer capable cipher, e.g.
aes-128-cbc-hmac-sha1, then B<-mb> will time multi-buffer operation. aes-128-cbc-hmac-sha1, then B<-mb> will time multi-buffer operation.
To see the algorithms supported with this option, use
C<openssl list -digest-algorithms> or C<openssl list -cipher-algorithms>
command.
=item B<-multi> I<num> =item B<-multi> I<num>
Run multiple operations in parallel. Run multiple operations in parallel.
@ -110,6 +111,15 @@ pre-compiled grand selection is tested.
=back =back
=head1 BUGS
The I<algorithm> can be selected only from a pre-compiled subset of things
that the C<openssl speed> command knows about. To test any additional digest
or cipher algorithm supported by OpenSSL use the C<-evp> option.
There is no way to test the speed of any additional public key algorithms
supported by third party providers with the C<openssl speed> command.
=head1 HISTORY =head1 HISTORY
The B<-engine> option was deprecated in OpenSSL 3.0. The B<-engine> option was deprecated in OpenSSL 3.0.