in src/voprf.rs [740:758]
fn zeroize_voprf_client<CS: CipherSuite>()
where
<CS::Hash as OutputSizeUser>::OutputSize:
IsLess<U256> + IsLessOrEqual<<CS::Hash as BlockSizeUser>::BlockSize>,
<CS::Group as Group>::ScalarLen: Add<<CS::Group as Group>::ElemLen>,
Sum<<CS::Group as Group>::ScalarLen, <CS::Group as Group>::ElemLen>: ArrayLength<u8>,
{
let input = b"input";
let mut rng = OsRng;
let client_blind_result = VoprfClient::<CS>::blind(input, &mut rng).unwrap();
let mut state = client_blind_result.state;
unsafe { ptr::drop_in_place(&mut state) };
assert!(state.serialize().iter().all(|&x| x == 0));
let mut message = client_blind_result.message;
unsafe { ptr::drop_in_place(&mut message) };
assert!(message.serialize().iter().all(|&x| x == 0));
}