RAND(1)

RAND(1) | OpenSSL | RAND(1)

# NAME

rand - generate pseudo-random bytes

# LIBRARY

libcrypto, -lcrypto

# 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.

# SEE ALSO

RAND_bytes(3)

2009-07-19 | 1.0.1p