/usr/man2/cat.1/openssl-rand.1.Z(/usr/man2/cat.1/openssl-rand.1.Z)

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 ran-
       dom 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 writ-
       ten 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 speci-
           fied 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.

SEE ALSO

       RAND_bytes(3)

1.0.2t                            2019-09-10                           RAND(1)
See also rand(1)