RND(4)

NAME
random srandom urandom prandom - random data source devices.

SYNOPSIS
pseudo-device random

DESCRIPTION
The random device produces random data, with different random quality. {s,u}random devices generates random data based on the system activity (like disk and network devices).

random
    reserved for nuclear noise generators.

srandom
    strong random data.

urandom
    same as above, but does not guaranties the data to be strong.

prandom
    simple pseudo-random generator (as it is in the kernel).

SEE ALSO
random(9)

FILES

/dev/random, /dev/srandom, /dev/urandom, /dev/prandom

HISTORY
An random device appeared in Linux operating system.