Function padlock_hash_key_setup

freebsd/crypto/via/padlock_hash.c:258–276

}

static void
padlock_hash_key_setup(struct padlock_session *ses, const uint8_t *key,
    int klen)
{
	struct auth_hash *axf;

	axf = ses->ses_axf;

	/*
	 * Try to free contexts before using them, because
	 * padlock_hash_key_setup() can be called twice - once from
	 * padlock_newsession() and again from padlock_process().
	 */
	padlock_free_ctx(axf, ses->ses_ictx);
	padlock_free_ctx(axf, ses->ses_octx);

	hmac_init_ipad(axf, key, klen, ses->ses_ictx);
	hmac_init_opad(axf, key, klen, ses->ses_octx);
}

/*
 * Compute keyed-hash authenticator.