Function blinding_next_path_key

common/blinding.c:22–30

E(i+1) = H(E(i) || ss(i)) * E(i) */

/* E(i+1) = H(E(i) || ss(i)) * E(i) */
bool blinding_next_path_key(const struct pubkey *pk,
			    const struct sha256 *h,
			    struct pubkey *next)
{

	*next = *pk;
	return secp256k1_ec_pubkey_tweak_mul(secp256k1_ctx, &next->pubkey,
					     h->u.u8) == 1;
}

/* e(i+1) = H(E(i) || ss(i)) * e(i) */
bool blinding_next_path_privkey(const struct privkey *e,