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rand(1ssl)
NAME
  rand - Generate pseudo-random bytes

SYNOPSIS
  openssl rand [-out filename] [-rand filename] [-base64] num

OPTIONS
  -out file
	  Writes to file instead of standard output.

  -rand file(s)
	  Uses a specified file or files or EGD socket for seeding the random
	  number generator.  (See RAND_egd(3).) Multiple files can be
	  separated by an OS-dependent character. The separator is a
	  semicolon (:) for MS-Windows, a comma (,)  for OpenVMS, and a colon
	  (:) for all others.

  -base64 Performs base64 encoding on the output.

DESCRIPTION
  The rand command outputs num pseudo-random bytes after seeding the random
  number generater 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.

SEE ALSO
  Functions: RAND_bytes(3)

Index for Section 1ssl

Alphabetical listing for R

Top of page