Function input_fe

common/codex32.c:115–131

Helper to input a single field element in the checksum engine. */

/* Helper to input a single field element in the checksum engine. */
static void input_fe(const u8 *generator, u8 *residue, uint8_t e, size_t len)
{
	size_t res_len = len;
	u8 xn = residue[0];

	for(size_t i = 1; i < res_len; i++) {
		residue[i - 1] = residue[i];
	}

	residue[res_len - 1] = e;

	for(size_t i = 0; i < res_len; i++) {
		u8 x = generator[i];
		multiply_gf32(&x, xn);
		addition_gf32(&residue[i], x);
	}
}

/* Helper to input the HRP of codex32 string into the checksum engine */
static void input_hrp(const u8 *generator, u8 *residue, const char *hrp, size_t len)