Re: is there a reseed srandom seed feature ?

[Greg Wooledge]

On Mon, Oct 14, 2024 at 11:22:52 +0200, alex xmb sw ratchev wrote:
> as topic .. just asking ..

Are you talking about the SRANDOM variable, or the RANDOM variable?

The man page describes each of them.  Assignment to RANDOM seeds that
particular random number generator.  SRANDOM is not, and cannot be,
seeded.  It uses the system's /dev/urandom interface.

       SRANDOM
              This variable expands to a 32-bit pseudo-random number each time
              it is referenced. The random number generator is not  linear  on
              systems  that  support  /dev/urandom  or arc4random, so each re‐
              turned number has no relationship to the numbers  preceding  it.
              The  random number generator cannot be seeded, so assignments to
              this variable have no effect.  If SRANDOM is unset, it loses its
              special properties, even if it is subsequently reset.