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//opt/alt/openssl/share/man/man1/speed.1

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.\" ========================================================================
.\"
.IX Title "SPEED 1"
.TH SPEED 1 "2026-06-17" "1.0.2u" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
openssl\-speed,
speed \- test library performance
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBopenssl speed\fR
[\fB\-engine id\fR]
[\fB\-elapsed\fR]
[\fB\-evp algo\fR]
[\fB\-decrypt\fR]
[\fBmd2\fR]
[\fBmdc2\fR]
[\fBmd5\fR]
[\fBhmac\fR]
[\fBsha1\fR]
[\fBrmd160\fR]
[\fBidea-cbc\fR]
[\fBrc2\-cbc\fR]
[\fBrc5\-cbc\fR]
[\fBbf-cbc\fR]
[\fBdes-cbc\fR]
[\fBdes\-ede3\fR]
[\fBrc4\fR]
[\fBrsa512\fR]
[\fBrsa1024\fR]
[\fBrsa2048\fR]
[\fBrsa4096\fR]
[\fBdsa512\fR]
[\fBdsa1024\fR]
[\fBdsa2048\fR]
[\fBidea\fR]
[\fBrc2\fR]
[\fBdes\fR]
[\fBrsa\fR]
[\fBblowfish\fR]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This command is used to test the performance of cryptographic algorithms.
.SH "OPTIONS"
.IX Header "OPTIONS"
.IP "\fB\-engine id\fR" 4
.IX Item "-engine id"
specifying an engine (by its unique \fBid\fR string) will cause \fBspeed\fR
to attempt to obtain a functional reference to the specified engine,
thus initialising it if needed. The engine will then be set as the default
for all available algorithms.
.IP "\fB\-elapsed\fR" 4
.IX Item "-elapsed"
Measure time in real time instead of \s-1CPU\s0 time. It can be useful when testing
speed of hardware engines.
.IP "\fB\-evp algo\fR" 4
.IX Item "-evp algo"
Use the specified cipher or message digest algorithm via the \s-1EVP\s0 interface.
.IP "\fB\-decrypt\fR" 4
.IX Item "-decrypt"
Time the decryption instead of encryption. Affects only the \s-1EVP\s0 testing.
.IP "\fB[zero or more test algorithms]\fR" 4
.IX Item "[zero or more test algorithms]"
If any options are given, \fBspeed\fR tests those algorithms, otherwise all of
the above are tested.