7 uint32_t n, uint32_t k);
9 uint32_t msg_len, uint32_t is_final);
struct blake2b_state_s blake2b_state_t
void zcash_blake2b_init(blake2b_state_t *st, uint8_t hash_len, uint32_t n, uint32_t k)
void zcash_blake2b_update(blake2b_state_t *st, const uint8_t *_msg, uint32_t msg_len, uint32_t is_final)
void zcash_blake2b_final(blake2b_state_t *st, uint8_t *out, uint8_t outlen)