CRYPTO_RNG_RESET(9)                   Programming Interface                   CRYPTO_RNG_RESET(9)



NAME
       crypto_rng_reset - re-initialize the RNG

SYNOPSIS
       int crypto_rng_reset(struct crypto_rng * tfm, const u8 * seed, unsigned int slen);

ARGUMENTS
       tfm
           cipher handle

       seed
           seed input data

       slen
           length of the seed input data

DESCRIPTION
       The reset function completely re-initializes the random number generator referenced by the
       cipher handle by clearing the current state. The new state is initialized with the caller
       provided seed or automatically, depending on the random number generator type (the ANSI
       X9.31 RNG requires caller-provided seed, the SP800-90A DRBGs perform an automatic
       seeding). The seed is provided as a parameter to this function call. The provided seed
       should have the length of the seed size defined for the random number generator as defined
       by crypto_rng_seedsize.

RETURN
       0 if the setting of the key was successful; < 0 if an error occurred

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_RESET(9)