lc_rng.h File Reference

#include "lc_memory_support.h"

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Functions
void	lc_rng_check (struct lc_rng_ctx **ctx)
	Get the default leancrypto RNG.
void	lc_rng_zero (struct lc_rng_ctx *ctx)
	Zeroize RNG context.
void	lc_rng_zero_free (struct lc_rng_ctx *ctx)
	Zeroize and free RNG context.
int	lc_rng_generate (struct lc_rng_ctx *ctx, const uint8_t *addtl_input, size_t addtl_input_len, uint8_t *out, size_t outlen)
	Obtain random numbers.
int	lc_rng_seed (struct lc_rng_ctx *ctx, const uint8_t *seed, size_t seedlen, const uint8_t *persbuf, size_t perslen)
	(Re)Seed the RNG
int	lc_rng_set_seeded (struct lc_rng_ctx *new_ctx)
	Set an externally defined RNG as the seeded RNG.
uint64_t	lc_rng_algorithm_type (const struct lc_rng *rng)
	Obtain algorithm type usable with lc_alg_status.
uint64_t	lc_rng_ctx_algorithm_type (const struct lc_rng_ctx *ctx)
	Obtain algorithm type usable with lc_alg_status.

Variables
struct lc_rng_ctx *	lc_seeded_rng
	One common instance of a seeded DRNG. The caller does not need to consider the seeding and reseeding - it is automatically and transparently handled. Thus, this structure can be directly used for the lc_rng API by a caller and have a properly seeded DRNG.