Name
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.
