Function blinding_next_path_privkey

common/blinding.c:33–40

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

/* e(i+1) = H(E(i) || ss(i)) * e(i) */
bool blinding_next_path_privkey(const struct privkey *e,
				const struct sha256 *h,
				struct privkey *next)
{
	*next = *e;
	return secp256k1_ec_seckey_tweak_mul(secp256k1_ctx, next->secret.data,
					      h->u.u8) == 1;
}