openssl rand

generate pseudo-random bytes 

openssl command

SYNOPSIS

openssl rand [-help] [-out file] [-rand file(s)] [-writerand file] [-base64] [-hex] num

DESCRIPTION

The rand command outputs num pseudo-random bytes after seeding the random number generator once. As in other openssl command line tools, PRNG seeding uses the file $HOME/.rnd or .rnd in addition to the files given in the -rand option. A new $HOME/.rnd or .rnd file will be written back if enough seeding was obtained from these sources.

OPTIONS

-help 

Print out a usage message.

-out file 

Writes to file instead of standard output.

-rand file(s) 

Uses specified file or files or EGD socket for seeding the random number generator. Multiple files can be specified separated by a OS-dependent character. The separator is ; for MS-Windows, , for OpenVMS, and : for all others.

-writerand file 

Writes random data to the specified file upon exit. This can be used with a subsequent -rand flag.

-base64 

performs base64 encoding on the output.

-hex 

Show the output as a hex string.

COPYRIGHT

Copyright 2016-2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or here: OpenSSL.

AVAILABILITY

PTC MKS Toolkit for System Administrators
PTC MKS Toolkit for Developers
PTC MKS Toolkit for Interoperability
PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Professional Developers 64-Bit Edition
PTC MKS Toolkit for Enterprise Developers
PTC MKS Toolkit for Enterprise Developers 64-Bit Edition

PTC MKS Toolkit 10.4 Documentation Build 39.