Function gf128_genmultable4

freebsd/opencrypto/gfmult.c:86–102

* Generate tables containing h, h^2, h^3 and h^4, starting at 0. */

 * Generate tables containing h, h^2, h^3 and h^4, starting at 0.
 */
void
gf128_genmultable4(struct gf128 h, struct gf128table4 *t)
{
	struct gf128 h2, h3, h4;

	gf128_genmultable(h, &t->tbls[0]);

	h2 = gf128_mul(h, &t->tbls[0]);

	gf128_genmultable(h2, &t->tbls[1]);

	h3 = gf128_mul(h, &t->tbls[1]);
	gf128_genmultable(h3, &t->tbls[2]);

	h4 = gf128_mul(h2, &t->tbls[1]);
	gf128_genmultable(h4, &t->tbls[3]);
}

/*
 * Read a row from the table.