5 openssl-speed - test library performance
26 This command is used to test the performance of cryptographic algorithms.
27 To see the list of supported algorithms, use the I<list --digest-commands>
28 or I<list --cipher-commands> command. The global CSPRNG is denoted by
29 the I<rand> algorithm name.
37 Print out a usage message.
41 Specifying an engine (by its unique B<id> string) will cause B<speed>
42 to attempt to obtain a functional reference to the specified engine,
43 thus initialising it if needed. The engine will then be set as the default
44 for all available algorithms.
48 When calculating operations- or bytes-per-second, use wall-clock time
49 instead of CPU user time as divisor. It can be useful when testing speed
54 Use the specified cipher or message digest algorithm via the EVP interface.
55 If B<algo> is an AEAD cipher, then you can pass <-aead> to benchmark a
56 TLS-like sequence. And if B<algo> is a multi-buffer capable cipher, e.g.
57 aes-128-cbc-hmac-sha1, then B<-mb> will time multi-buffer operation.
61 Time the HMAC algorithm using the specified message digest.
65 Time the CMAC algorithm using the specified cipher e.g. B<speed -cmac aes128>.
69 Time the decryption instead of encryption. Affects only the EVP testing.
71 =item B<-rand file...>
73 A file or files containing random data used to seed the random number
75 Multiple files can be specified separated by an OS-dependent character.
76 The separator is B<;> for MS-Windows, B<,> for OpenVMS, and B<:> for
79 =item [B<-writerand file>]
81 Writes random data to the specified I<file> upon exit.
82 This can be used with a subsequent B<-rand> flag.
86 Generate a B<num>-prime RSA key and use it to run the benchmarks. This option
87 is only effective if RSA algorithm is specified to test.
91 Run benchmarks for B<num> seconds.
95 Run benchmarks on B<num>-byte buffers. Affects ciphers, digests and the CSPRNG.
97 =item B<[zero or more test algorithms]>
99 If any options are given, B<speed> tests those algorithms, otherwise a
100 pre-compiled grand selection is tested.
106 Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
108 Licensed under the Apache License 2.0 (the "License"). You may not use
109 this file except in compliance with the License. You can obtain a copy
110 in the file LICENSE in the source distribution or at
111 L<https://www.openssl.org/source/license.html>.