3ee1eac27a
Standardized the -rand flag and added a new one:
-rand file...
Always reads the specified files
-writerand file
Always writes to the file on exit
For apps that use a config file, the RANDFILE config parameter reads
the file at startup (to seed the RNG) and write to it on exit if
the -writerand flag isn't used.
Ensured that every app that took -rand also took -writerand, and
made sure all of that agreed with all the documentation.
Fix error reporting in write_file and -rand
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/3862)
82 lines
1.9 KiB
Text
82 lines
1.9 KiB
Text
=pod
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=head1 NAME
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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<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.
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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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Measure time in real time instead of CPU time. It can be useful when testing
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speed 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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=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<[zero or more test algorithms]>
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If any options are given, B<speed> tests those algorithms, otherwise all of
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the above are tested.
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=back
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=head1 COPYRIGHT
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Copyright 2000-2017 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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