DEFAULT_SALTLEN
kg->kg_salt = bits_getrandombits(DEFAULT_SALTLEN, 1);
argon2id_calibrate(BITS2BYTES(keylen), DEFAULT_SALTLEN,
kg->kg_salt = bits_getrandombits(DEFAULT_SALTLEN, 1);
kg->kg_sharedinfo = bits_getrandombits(DEFAULT_SALTLEN, 0);
kg->kg_sharedinfo = bits_getrandombits(DEFAULT_SALTLEN, 0);