zebra_chain/primitives/proofs/
bctv14.rs

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1//! BCTV14 proofs for Zebra.
2
3use std::{fmt, io};
4
5use serde::{Deserialize, Serialize};
6use serde_big_array::BigArray;
7
8use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
9
10/// An encoding of a BCTV14 proof, as used in Zcash.
11#[derive(Serialize, Deserialize)]
12pub struct Bctv14Proof(#[serde(with = "BigArray")] pub [u8; 296]);
13
14impl fmt::Debug for Bctv14Proof {
15    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
16        f.debug_tuple("Bctv14Proof")
17            .field(&hex::encode(&self.0[..]))
18            .finish()
19    }
20}
21
22// These impls all only exist because of array length restrictions.
23
24impl Copy for Bctv14Proof {}
25
26impl Clone for Bctv14Proof {
27    fn clone(&self) -> Self {
28        *self
29    }
30}
31
32impl PartialEq for Bctv14Proof {
33    fn eq(&self, other: &Self) -> bool {
34        self.0[..] == other.0[..]
35    }
36}
37
38impl Eq for Bctv14Proof {}
39
40impl ZcashSerialize for Bctv14Proof {
41    fn zcash_serialize<W: io::Write>(&self, mut writer: W) -> Result<(), io::Error> {
42        writer.write_all(&self.0[..])?;
43        Ok(())
44    }
45}
46
47impl ZcashDeserialize for Bctv14Proof {
48    fn zcash_deserialize<R: io::Read>(mut reader: R) -> Result<Self, SerializationError> {
49        let mut bytes = [0; 296];
50        reader.read_exact(&mut bytes[..])?;
51        Ok(Self(bytes))
52    }
53}
54
55#[cfg(any(test, feature = "proptest-impl"))]
56use proptest::{collection::vec, prelude::*};
57
58#[cfg(any(test, feature = "proptest-impl"))]
59impl Arbitrary for Bctv14Proof {
60    type Parameters = ();
61
62    fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy {
63        (vec(any::<u8>(), 296))
64            .prop_map(|v| {
65                let mut bytes = [0; 296];
66                bytes.copy_from_slice(v.as_slice());
67                Self(bytes)
68            })
69            .boxed()
70    }
71
72    type Strategy = BoxedStrategy<Self>;
73}
zebra_chain/primitives/proofs/bctv14.rs

zebra_chain/primitives/proofs/
bctv14.rs
