CRYPTO_RNG_SEEDSIZE(9)                Programming Interface                CRYPTO_RNG_SEEDSIZE(9)



NAME
       crypto_rng_seedsize - obtain seed size of RNG

SYNOPSIS
       int crypto_rng_seedsize(struct crypto_rng * tfm);

ARGUMENTS
       tfm
           cipher handle

DESCRIPTION
       The function returns the seed size for the random number generator referenced by the
       cipher handle. This value may be zero if the random number generator does not implement or
       require a reseeding. For example, the SP800-90A DRBGs implement an automated reseeding
       after reaching a pre-defined threshold.

RETURN
       seed size for the random number generator

AUTHORS
       Stephan Mueller <smueller AT chronox.de>
           Author.

       Marek Vasut <marek AT denx.de>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                    CRYPTO_RNG_SEEDSIZE(9)