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.\" ========================================================================
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.IX Title "RAND 1"
.TH RAND 1 2019-12-20 1.0.2u OpenSSL
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.SH NAME
openssl\-rand,
rand \- generate pseudo\-random bytes
.SH SYNOPSIS
.IX Header "SYNOPSIS"
\&\fBopenssl rand\fR
[\fB\-out\fR \fIfile\fR]
[\fB\-rand\fR \fIfile(s)\fR]
[\fB\-base64\fR]
[\fB\-hex\fR]
\&\fInum\fR
.SH DESCRIPTION
.IX Header "DESCRIPTION"
The \fBrand\fR command outputs \fInum\fR pseudo-random bytes after seeding
the random number generator once.  As in other \fBopenssl\fR command
line tools, PRNG seeding uses the file \fR\f(CI$HOME\fR\fI/\fR\fB.rnd\fR or \fB.rnd\fR
in addition to the files given in the \fB\-rand\fR option.  A new
\&\fI\fR\f(CI$HOME\fR\fI\fR/\fB.rnd\fR or \fB.rnd\fR file will be written back if enough
seeding was obtained from these sources.
.SH OPTIONS
.IX Header "OPTIONS"
.IP "\fB\-out\fR \fIfile\fR" 4
.IX Item "-out file"
Write to \fIfile\fR instead of standard output.
.IP "\fB\-rand\fR \fIfile(s)\fR" 4
.IX Item "-rand file(s)"
Use specified file or files or EGD socket (see \fBRAND_egd\fR\|(3))
for seeding the random number generator.
Multiple files can be specified separated by a OS-dependent character.
The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for
all others.
.IP \fB\-base64\fR 4
.IX Item "-base64"
Perform base64 encoding on the output.
.IP \fB\-hex\fR 4
.IX Item "-hex"
Show the output as a hex string.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBRAND_bytes\fR\|(3)