zebra/zebra-chain/src/primitives/proofs/bctv14.rs

74 lines
1.8 KiB
Rust

//! BCTV14 proofs for Zebra.
use std::{fmt, io};
use serde::{Deserialize, Serialize};
use serde_big_array::BigArray;
use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
/// An encoding of a BCTV14 proof, as used in Zcash.
#[derive(Serialize, Deserialize)]
pub struct Bctv14Proof(#[serde(with = "BigArray")] pub [u8; 296]);
impl fmt::Debug for Bctv14Proof {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_tuple("Bctv14Proof")
.field(&hex::encode(&self.0[..]))
.finish()
}
}
// These impls all only exist because of array length restrictions.
impl Copy for Bctv14Proof {}
impl Clone for Bctv14Proof {
fn clone(&self) -> Self {
*self
}
}
impl PartialEq for Bctv14Proof {
fn eq(&self, other: &Self) -> bool {
self.0[..] == other.0[..]
}
}
impl Eq for Bctv14Proof {}
impl ZcashSerialize for Bctv14Proof {
fn zcash_serialize<W: io::Write>(&self, mut writer: W) -> Result<(), io::Error> {
writer.write_all(&self.0[..])?;
Ok(())
}
}
impl ZcashDeserialize for Bctv14Proof {
fn zcash_deserialize<R: io::Read>(mut reader: R) -> Result<Self, SerializationError> {
let mut bytes = [0; 296];
reader.read_exact(&mut bytes[..])?;
Ok(Self(bytes))
}
}
#[cfg(any(test, feature = "proptest-impl"))]
use proptest::{collection::vec, prelude::*};
#[cfg(any(test, feature = "proptest-impl"))]
impl Arbitrary for Bctv14Proof {
type Parameters = ();
fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy {
(vec(any::<u8>(), 296))
.prop_map(|v| {
let mut bytes = [0; 296];
bytes.copy_from_slice(v.as_slice());
Self(bytes)
})
.boxed()
}
type Strategy = BoxedStrategy<Self>;
}