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man pages section 1: User Commands

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Updated: Thursday, June 13, 2019
 
 

rand (1openssl)

Name

rand - random bytes

Synopsis

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

Description

RAND(1openssl)                      OpenSSL                     RAND(1openssl)



NAME
       openssl-rand, rand - generate pseudo-random bytes

SYNOPSIS
       openssl rand [-out file] [-rand file(s)] [-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
       -out file
           Write to file instead of standard output.

       -rand file(s)
           Use specified file or files or EGD socket (see RAND_egd(3)) 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.

       -base64
           Perform base64 encoding on the output.

       -hex
           Show the output as a hex string.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+--------------------------+
       |ATTRIBUTE TYPE |     ATTRIBUTE VALUE      |
       +---------------+--------------------------+
       |Availability   | library/security/openssl |
       +---------------+--------------------------+
       |Stability      | Pass-through uncommitted |
       +---------------+--------------------------+
SEE ALSO
       RAND_bytes(3)



NOTES
       This software was built from source available at
       https://github.com/oracle/solaris-userland.  The original community
       source was downloaded from
       https://www.openssl.org/source/openssl-1.0.2r.tar.gz

       Further information about this software can be found on the open source
       community website at https://www.openssl.org/.



1.0.2r                            2019-02-26                    RAND(1openssl)