- long ret = bindings.TrustedCommitmentTransaction_get_htlc_sigs(this.ptr, htlc_base_key, channel_parameters == null ? 0 : channel_parameters.ptr & ~1);
- if (ret >= 0 && ret < 1024) { return null; }
+ long ret = bindings.TrustedCommitmentTransaction_get_htlc_sigs(this.ptr, InternalUtils.check_arr_len(htlc_base_key, 32), channel_parameters == null ? 0 : channel_parameters.ptr & ~1);
+ if (ret >= 0 && ret <= 4096) { return null; }