NAME
rand - generate pseudo-random bytes
SYNOPSIS
openssl rand
[-out file] [-rand file(s)]
[-base64] 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 (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.
SEE ALSO
(3)