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Response to usage of unwrap in non-test code

Browse Source 
This commit replaces all usage of `unwrap` with `expect` within
`networks/monero`, clarifying why the panic risked is unreachable. This commit
also replaces some uses of `unwrap` with solutions which are guaranteed not to
fail.

Notably, compilation on 128-bit systems is prevented, ensuring
`u64::try_from(usize::MAX)` will never panic at runtime.

Slight breaking changes are additionally included as necessary to massage out
some avoidable panics.
This commit is contained in:
Luke Parker
2025-08-08 21:28:47 -04:00
parent 4f65a0b147
commit a5f4c450c6
31 changed files with 310 additions and 169 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
networks/monero/generators/src/hash_to_point.rs
View File

@@ -29,7 +29,11 @@ pub fn hash_to_point(bytes: [u8; 32]) -> EdwardsPoint {
let uv3 = u * v3;
let v7 = v3 * v3 * v;
let uv7 = u * v7;
uv3 * uv7.pow((-FieldElement::from(5u8)) * FieldElement::from(8u8).invert().unwrap())
uv3 *
uv7.pow(
(-FieldElement::from(5u8)) *
FieldElement::from(8u8).invert().expect("eight was coprime with the prime 2^{255}-19"),
)
};
let x = X.square() * x;
@@ -45,9 +49,23 @@ pub fn hash_to_point(bytes: [u8; 32]) -> EdwardsPoint {
#[allow(non_snake_case)]
let mut Y = z - w;
Y *= Z.invert().unwrap();
/*
If sign, `z = -486662`, else, `z = -486662 * v`
`w = v + 1`
We need `z + w \ne 0`, which would require `z \cong -w \mod 2^{255}-19`. This requires:
- If `sign`, `v \mod 2^{255}-19 \ne 486661`.
- If `!sign`, `(v + 1) \mod 2^{255}-19 \ne (v * 486662) \mod 2^{255}-19` which is equivalent to
`(v * 486661) \mod 2^{255}-19 \ne 1`.
In summary, if `sign`, `v` must not `486661`, and if `!sign`, `v` must not be the
multiplicative inverse of `486661`. Since `v` is the output of a hash function, this should
have negligible probability. Additionally, since the definition of `sign` is dependent on `v`,
it may be truly impossible to reach.
*/
Y *= Z.invert().expect("if sign, v was 486661. if !sign, v was 486661^{-1}");
let mut bytes = Y.to_repr();
bytes[31] |= sign.unwrap_u8() << 7;
decompress_point(bytes).unwrap().mul_by_cofactor()
decompress_point(bytes).expect("point from hash-to-curve wasn't on-curve").mul_by_cofactor()
}

6
networks/monero/generators/src/lib.rs
View File

@@ -28,7 +28,7 @@ fn keccak256(data: &[u8]) -> [u8; 32] {
#[allow(non_snake_case)]
pub static H: LazyLock<EdwardsPoint> = LazyLock::new(|| {
decompress_point(keccak256(&ED25519_BASEPOINT_POINT.compress().to_bytes()))
.unwrap()
.expect("known on-curve point wasn't on-curve")
.mul_by_cofactor()
});
@@ -78,11 +78,11 @@ pub fn bulletproofs_generators(dst: &'static [u8]) -> Generators {
let i = 2 * i;
let mut even = preimage.clone();
write_varint(&i, &mut even).unwrap();
write_varint(&i, &mut even).expect("write failed but <Vec as io::Write> doesn't fail");
res.H.push(hash_to_point(keccak256(&even)));
let mut odd = preimage.clone();
write_varint(&(i + 1), &mut odd).unwrap();
write_varint(&(i + 1), &mut odd).expect("write failed but <Vec as io::Write> doesn't fail");
res.G.push(hash_to_point(keccak256(&odd)));
}
res

27
networks/monero/io/src/lib.rs
View File

@@ -18,10 +18,12 @@ use curve25519_dalek::{
const VARINT_CONTINUATION_MASK: u8 = 0b1000_0000;
mod sealed {
use core::fmt::Debug;
/// A trait for a number readable/writable as a VarInt.
///
/// This is sealed to prevent unintended implementations.
pub trait VarInt: TryInto<u64> + TryFrom<u64> + Copy {
pub trait VarInt: TryInto<u64, Error: Debug> + TryFrom<u64, Error: Debug> + Copy {
const BITS: usize;
}
@@ -34,6 +36,10 @@ mod sealed {
impl VarInt for u64 {
const BITS: usize = 64;
}
// Don't compile for platforms where `usize` exceeds `u64`, preventing various possible runtime
// exceptions
const _NO_128_BIT_PLATFORMS: [(); (u64::BITS - usize::BITS) as usize] =
[(); (u64::BITS - usize::BITS) as usize];
impl VarInt for usize {
const BITS: usize = core::mem::size_of::<usize>() * 8;
}
@@ -43,8 +49,12 @@ mod sealed {
///
/// This function will panic if the VarInt exceeds u64::MAX.
pub fn varint_len<V: sealed::VarInt>(varint: V) -> usize {
let varint_u64: u64 = varint.try_into().map_err(|_| "varint exceeded u64").unwrap();
((usize::try_from(u64::BITS - varint_u64.leading_zeros()).unwrap().saturating_sub(1)) / 7) + 1
let varint_u64: u64 = varint.try_into().expect("varint exceeded u64");
((usize::try_from(u64::BITS - varint_u64.leading_zeros())
.expect("64 > usize::MAX")
.saturating_sub(1)) /
7) +
1
}
/// Write a byte.
@@ -58,9 +68,10 @@ pub fn write_byte<W: Write>(byte: &u8, w: &mut W) -> io::Result<()> {
///
/// This will panic if the VarInt exceeds u64::MAX.
pub fn write_varint<W: Write, U: sealed::VarInt>(varint: &U, w: &mut W) -> io::Result<()> {
let mut varint: u64 = (*varint).try_into().map_err(|_| "varint exceeded u64").unwrap();
let mut varint: u64 = (*varint).try_into().expect("varint exceeded u64");
while {
let mut b = u8::try_from(varint & u64::from(!VARINT_CONTINUATION_MASK)).unwrap();
let mut b = u8::try_from(varint & u64::from(!VARINT_CONTINUATION_MASK))
.expect("& eight_bit_mask left more than 8 bits set");
varint >>= 7;
if varint != 0 {
b |= VARINT_CONTINUATION_MASK;
@@ -210,7 +221,11 @@ pub fn read_array<R: Read, T: Debug, F: Fn(&mut R) -> io::Result<T>, const N: us
f: F,
r: &mut R,
) -> io::Result<[T; N]> {
read_raw_vec(f, N, r).map(|vec| vec.try_into().unwrap())
read_raw_vec(f, N, r).map(|vec| {
vec.try_into().expect(
"read vector of specific length yet couldn't transform to an array of the same length",
)
})
}
/// Read a length-prefixed variable-length list of elements.

4
networks/monero/primitives/src/lib.rs
View File

@@ -124,7 +124,7 @@ impl Commitment {
/// defined serialization.
pub fn serialize(&self) -> Vec<u8> {
let mut res = Vec::with_capacity(32 + 8);
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
@@ -230,7 +230,7 @@ impl Decoys {
pub fn serialize(&self) -> Vec<u8> {
let mut res =
Vec::with_capacity((1 + (2 * self.offsets.len())) + 1 + 1 + (self.ring.len() * 64));
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}

14
networks/monero/primitives/src/unreduced_scalar.rs
View File

@@ -14,7 +14,8 @@ use monero_io::*;
static PRECOMPUTED_SCALARS: LazyLock<[Scalar; 8]> = LazyLock::new(|| {
let mut precomputed_scalars = [Scalar::ONE; 8];
for (i, scalar) in precomputed_scalars.iter_mut().enumerate().skip(1) {
*scalar = Scalar::from(u8::try_from((i * 2) + 1).unwrap());
*scalar =
Scalar::from(u64::try_from((i * 2) + 1).expect("enumerating more than u64::MAX / 2 items"));
}
precomputed_scalars
});
@@ -59,7 +60,7 @@ impl UnreducedScalar {
let bits = self.as_bits();
let mut naf = [0i8; 256];
for (b, bit) in bits.into_iter().enumerate() {
naf[b] = i8::try_from(bit).unwrap();
naf[b] = i8::try_from(bit).expect("bit didn't fit within an i8");
}
for i in 0 .. 256 {
@@ -129,8 +130,13 @@ impl UnreducedScalar {
for &numb in self.non_adjacent_form().iter().rev() {
recovered += recovered;
match numb.cmp(&0) {
Ordering::Greater => recovered += PRECOMPUTED_SCALARS[usize::try_from(numb).unwrap() / 2],
Ordering::Less => recovered -= PRECOMPUTED_SCALARS[usize::try_from(-numb).unwrap() / 2],
Ordering::Greater => {
recovered += PRECOMPUTED_SCALARS[usize::try_from(numb).expect("positive i8 -> usize") / 2]
}
Ordering::Less => {
recovered -=
PRECOMPUTED_SCALARS[usize::try_from(-numb).expect("negated negative i8 -> usize") / 2]
}
Ordering::Equal => (),
}
}

18
networks/monero/ringct/bulletproofs/build.rs
View File

@@ -16,8 +16,10 @@ fn generators(prefix: &'static str, path: &str) {
generators_string.extend(
format!(
"
curve25519_dalek::edwards::CompressedEdwardsY({:?}).decompress().unwrap(),
",
curve25519_dalek::edwards::CompressedEdwardsY({:?})
.decompress()
.expect(\"generator from build script wasn't on-curve\"),
",
generator.compress().to_bytes()
)
.chars(),
@@ -33,10 +35,10 @@ fn generators(prefix: &'static str, path: &str) {
let mut H_str = String::new();
serialize(&mut H_str, &generators.H);
let path = Path::new(&env::var("OUT_DIR").unwrap()).join(path);
let path = Path::new(&env::var("OUT_DIR").expect("cargo didn't set $OUT_DIR")).join(path);
let _ = remove_file(&path);
File::create(&path)
.unwrap()
.expect("failed to create file in $OUT_DIR")
.write_all(
format!(
"
@@ -52,15 +54,15 @@ fn generators(prefix: &'static str, path: &str) {
)
.as_bytes(),
)
.unwrap();
.expect("couldn't write generated source code to file on disk");
}
#[cfg(not(feature = "compile-time-generators"))]
fn generators(prefix: &'static str, path: &str) {
let path = Path::new(&env::var("OUT_DIR").unwrap()).join(path);
let path = Path::new(&env::var("OUT_DIR").expect("cargo didn't set $OUT_DIR")).join(path);
let _ = remove_file(&path);
File::create(&path)
.unwrap()
.expect("failed to create file in $OUT_DIR")
.write_all(
format!(
r#"
@@ -71,7 +73,7 @@ fn generators(prefix: &'static str, path: &str) {
)
.as_bytes(),
)
.unwrap();
.expect("couldn't write generated source code to file on disk");
}
fn main() {

29
networks/monero/ringct/bulletproofs/src/lib.rs
View File

@@ -5,7 +5,6 @@
#![allow(non_snake_case)]
use std_shims::{
vec,
vec::Vec,
io::{self, Read, Write},
};
@@ -124,9 +123,15 @@ impl Bulletproof {
let commitments = outputs.iter().map(Commitment::calculate).collect::<Vec<_>>();
Ok(Bulletproof::Original(
OriginalStatement::new(&commitments)
.unwrap()
.prove(rng, OriginalWitness::new(outputs).unwrap())
.unwrap(),
.expect("failed to create statement despite checking amount of commitments")
.prove(
rng,
OriginalWitness::new(outputs)
.expect("failed to create witness despite checking amount of commitments"),
)
.expect(
"failed to prove Bulletproof::Original despite ensuring statement/witness consistency",
),
))
}
@@ -144,9 +149,15 @@ impl Bulletproof {
let commitments = outputs.iter().map(Commitment::calculate).collect::<Vec<_>>();
Ok(Bulletproof::Plus(
PlusStatement::new(&commitments)
.unwrap()
.prove(rng, &Zeroizing::new(PlusWitness::new(outputs).unwrap()))
.unwrap(),
.expect("failed to create statement despite checking amount of commitments")
.prove(
rng,
&Zeroizing::new(
PlusWitness::new(outputs)
.expect("failed to create witness despite checking amount of commitments"),
),
)
.expect("failed to prove Bulletproof::Plus despite ensuring statement/witness consistency"),
))
}
@@ -255,8 +266,8 @@ impl Bulletproof {
/// Serialize a Bulletproof(+) to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut serialized = vec![];
self.write(&mut serialized).unwrap();
let mut serialized = Vec::with_capacity(512);
self.write(&mut serialized).expect("write failed but <Vec as io::Write> doesn't fail");
serialized
}

6
networks/monero/ringct/bulletproofs/src/original/inner_product.rs
View File

@@ -174,7 +174,11 @@ impl IpStatement {
R_vec.push(R * INV_EIGHT());
// Now that we've calculate L, R, transcript them to receive x (26-27)
transcript = Self::transcript_L_R(transcript, *L_vec.last().unwrap(), *R_vec.last().unwrap());
transcript = Self::transcript_L_R(
transcript,
*L_vec.last().expect("couldn't get last L_vec despite always being non-empty"),
*R_vec.last().expect("couldn't get last R_vec despite always being non-empty"),
);
let x = transcript;
let x_inv = x.invert();

7
networks/monero/ringct/bulletproofs/src/original/mod.rs
View File

@@ -227,8 +227,11 @@ impl<'a> AggregateRangeStatement<'a> {
let x_ip = transcript;
let ip = IpStatement::new_without_P_transcript(y_inv_pow_n, x_ip)
.prove(transcript, IpWitness::new(l, r).unwrap())
.unwrap();
.prove(
transcript,
IpWitness::new(l, r).expect("Bulletproofs::Original created an invalid IpWitness"),
)
.expect("Bulletproofs::Original failed to prove the inner-product");
let res = AggregateRangeProof { A, S, T1, T2, tau_x, mu, t_hat, ip };
#[cfg(debug_assertions)]

15
networks/monero/ringct/bulletproofs/src/plus/aggregate_range_proof.rs
View File

@@ -106,7 +106,9 @@ impl<'a> AggregateRangeStatement<'a> {
let mut d = ScalarVector::new(mn);
for j in 1 ..= V.len() {
z_pow.push(*z_pow.last().unwrap() * z_pow[0]);
z_pow.push(
*z_pow.last().expect("couldn't get last z_pow despite always being non-empty") * z_pow[0],
);
d = d + &(Self::d_j(j, V.len()) * (z_pow[j - 1]));
}
@@ -229,8 +231,15 @@ impl<'a> AggregateRangeStatement<'a> {
Some(AggregateRangeProof {
A,
wip: WipStatement::new(generators, A_hat, y)
.prove(rng, transcript, &Zeroizing::new(WipWitness::new(a_l, a_r, alpha).unwrap()))
.unwrap(),
.prove(
rng,
transcript,
&Zeroizing::new(
WipWitness::new(a_l, a_r, alpha)
.expect("Bulletproofs::Plus created an invalid WipWitness"),
),
)
.expect("Bulletproof::Plus failed to prove the weighted inner-product"),
})
}

8
networks/monero/ringct/bulletproofs/src/plus/weighted_inner_product.rs
View File

@@ -230,7 +230,9 @@ impl WipStatement {
let c_l = a1.clone().weighted_inner_product(&b2, &y);
let c_r = (a2.clone() * y_n_hat).weighted_inner_product(&b1, &y);
let y_inv_n_hat = y_inv.pop().unwrap();
let y_inv_n_hat = y_inv
.pop()
.expect("couldn't pop y_inv despite y_inv being of same length as times iterated");
let mut L_terms = (a1.clone() * y_inv_n_hat)
.0
@@ -331,7 +333,9 @@ impl WipStatement {
let mut res = Vec::with_capacity(y.len());
res.push(inv_y);
while res.len() < y.len() {
res.push(inv_y * res.last().unwrap());
res.push(
inv_y * res.last().expect("couldn't get last inv_y despite inv_y always being non-empty"),
);
}
res
};

7
networks/monero/ringct/clsag/src/lib.rs
View File

@@ -199,9 +199,10 @@ fn core(
// (c_p * I) + (c_c * D) + (s_i * PH)
let R = match A_c1 {
Mode::Sign(..) => EdwardsPoint::multiscalar_mul([c_p, c_c, s[i]], [I, D, &PH]),
Mode::Verify(..) => {
images_precomp.as_ref().unwrap().vartime_mixed_multiscalar_mul([c_p, c_c], [s[i]], [PH])
}
Mode::Verify(..) => images_precomp
.as_ref()
.expect("value populated when verifying wasn't populated")
.vartime_mixed_multiscalar_mul([c_p, c_c], [s[i]], [PH]),
};
to_hash.truncate(((2 * n) + 3) * 32);

16
networks/monero/ringct/clsag/src/multisig.rs
View File

@@ -223,7 +223,7 @@ impl Algorithm<Ed25519> for ClsagMultisig {
self
.mask_recv
.take()
.unwrap()
.expect("image was none multiple times, despite setting to Some on first iteration")
.recv()
.ok_or(FrostError::InternalError("CLSAG mask was not provided"))?,
);
@@ -243,7 +243,8 @@ impl Algorithm<Ed25519> for ClsagMultisig {
// Accumulate the interpolated share
let interpolated_key_image_share =
addendum.key_image_share * lagrange::<dfg::Scalar>(l, view.included());
*self.image.as_mut().unwrap() += interpolated_key_image_share;
*self.image.as_mut().expect("image populated on first iteration wasn't Some") +=
interpolated_key_image_share;
self
.key_image_shares
@@ -272,14 +273,15 @@ impl Algorithm<Ed25519> for ClsagMultisig {
// opening of the commitment being re-randomized (and what it's re-randomized to)
let mut rng = ChaCha20Rng::from_seed(self.transcript.rng_seed(b"decoy_responses"));
self.msg_hash = Some(msg_hash.try_into().expect("CLSAG message hash should be 32-bytes"));
let msg_hash = msg_hash.try_into().expect("CLSAG message hash should be 32-bytes");
self.msg_hash = Some(msg_hash);
let sign_core = Clsag::sign_core(
&mut rng,
&self.image.expect("verifying a share despite never processing any addendums").0,
&self.context,
self.mask.expect("mask wasn't set"),
self.msg_hash.as_ref().unwrap(),
&msg_hash,
nonce_sums[0][0].0,
nonce_sums[0][1].0,
);
@@ -301,7 +303,7 @@ impl Algorithm<Ed25519> for ClsagMultisig {
_: &[Vec<dfg::EdwardsPoint>],
sum: dfg::Scalar,
) -> Option<Self::Signature> {
let interim = self.interim.as_ref().unwrap();
let interim = self.interim.as_ref().expect("verify called before sign_share");
let mut clsag = interim.clsag.clone();
// We produced shares as `r - p x`, yet the signature is actually `r - p x - c x`
// Substract `c x` (saved as `c`) now
@@ -311,7 +313,7 @@ impl Algorithm<Ed25519> for ClsagMultisig {
self.context.decoys.ring(),
&self.image.expect("verifying a signature despite never processing any addendums").0,
&interim.pseudo_out,
self.msg_hash.as_ref().unwrap(),
self.msg_hash.as_ref().expect("verify called before sign_share"),
)
.is_ok()
{
@@ -326,7 +328,7 @@ impl Algorithm<Ed25519> for ClsagMultisig {
nonces: &[Vec<dfg::EdwardsPoint>],
share: dfg::Scalar,
) -> Result<Vec<(dfg::Scalar, dfg::EdwardsPoint)>, ()> {
let interim = self.interim.as_ref().unwrap();
let interim = self.interim.as_ref().expect("verify_share called before sign_share");
// For a share `r - p x`, the following two equalities should hold:
// - `(r - p x)G == R.0 - pV`, where `V = xG`

33
networks/monero/rpc/simple-request/src/lib.rs
View File

@@ -135,35 +135,13 @@ impl SimpleRequestRpc {
};
async fn body_from_response(response: Response<'_>) -> Result<Vec<u8>, RpcError> {
/*
let length = usize::try_from(
response
.headers()
.get("content-length")
.ok_or(RpcError::InvalidNode("no content-length header"))?
.to_str()
.map_err(|_| RpcError::InvalidNode("non-ascii content-length value"))?
.parse::<u32>()
.map_err(|_| RpcError::InvalidNode("non-u32 content-length value"))?,
)
.unwrap();
// Only pre-allocate 1 MB so a malicious node which claims a content-length of 1 GB actually
// has to send 1 GB of data to cause a 1 GB allocation
let mut res = Vec::with_capacity(length.max(1024 * 1024));
let mut body = response.into_body();
while res.len() < length {
let Some(data) = body.data().await else { break };
res.extend(data.map_err(|e| RpcError::ConnectionError(format!("{e:?}")))?.as_ref());
}
*/
let mut res = Vec::with_capacity(128);
response
.body()
.await
.map_err(|e| RpcError::ConnectionError(format!("{e:?}")))?
.read_to_end(&mut res)
.unwrap();
.map_err(|e| RpcError::ConnectionError(format!("{e:?}")))?;
Ok(res)
}
@@ -219,7 +197,12 @@ impl SimpleRequestRpc {
})?
.to_header_string(),
)
.unwrap(),
.map_err(|_| {
RpcError::InternalError(
"digest-auth challenge response wasn't a valid string for an HTTP header"
.to_string(),
)
})?,
);
}
@@ -269,7 +252,7 @@ impl SimpleRequestRpc {
))?
}
} else {
body_from_response(response.unwrap()).await?
body_from_response(response.expect("no response yet also no error?")).await?
}
}
});

32
networks/monero/rpc/src/lib.rs
View File

@@ -121,7 +121,7 @@ impl FeeRate {
/// defined serialization.
pub fn serialize(&self) -> Vec<u8> {
let mut res = Vec::with_capacity(16);
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
@@ -139,15 +139,22 @@ impl FeeRate {
///
/// This function may panic upon overflow.
pub fn calculate_fee_from_weight(&self, weight: usize) -> u64 {
let fee = self.per_weight * u64::try_from(weight).unwrap();
let fee =
self.per_weight * u64::try_from(weight).expect("couldn't convert weight (usize) to u64");
let fee = fee.div_ceil(self.mask) * self.mask;
debug_assert_eq!(weight, self.calculate_weight_from_fee(fee), "Miscalculated weight from fee");
debug_assert_eq!(
Some(weight),
self.calculate_weight_from_fee(fee),
"Miscalculated weight from fee"
);
fee
}
/// Calculate the weight from the fee.
pub fn calculate_weight_from_fee(&self, fee: u64) -> usize {
usize::try_from(fee / self.per_weight).unwrap()
///
/// Returns `None` if the weight would not fit within a `usize`.
pub fn calculate_weight_from_fee(&self, fee: u64) -> Option<usize> {
usize::try_from(fee / self.per_weight).ok()
}
}
@@ -272,8 +279,14 @@ pub trait Rpc: Sync + Clone {
let res = self
.post(
route,
if let Some(params) = params {
serde_json::to_string(&params).unwrap().into_bytes()
if let Some(params) = params.as_ref() {
serde_json::to_string(params)
.map_err(|e| {
RpcError::InternalError(format!(
"couldn't convert parameters ({params:?}) to JSON: {e:?}"
))
})?
.into_bytes()
} else {
vec![]
},
@@ -295,7 +308,10 @@ pub trait Rpc: Sync + Clone {
async move {
let mut req = json!({ "method": method });
if let Some(params) = params {
req.as_object_mut().unwrap().insert("params".into(), params);
req
.as_object_mut()
.expect("accessing object as object failed?")
.insert("params".into(), params);
}
Ok(self.rpc_call::<_, JsonRpcResponse<Response>>("json_rpc", Some(req)).await?.result)
}

18
networks/monero/src/block.rs
View File

@@ -51,7 +51,7 @@ impl BlockHeader {
/// Serialize the BlockHeader to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut serialized = vec![];
self.write(&mut serialized).unwrap();
self.write(&mut serialized).expect("write failed but <Vec as io::Write> doesn't fail");
serialized
}
@@ -111,7 +111,7 @@ impl Block {
/// Serialize the Block to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut serialized = vec![];
self.write(&mut serialized).unwrap();
self.write(&mut serialized).expect("write failed but <Vec as io::Write> doesn't fail");
serialized
}
@@ -122,7 +122,13 @@ impl Block {
pub fn serialize_pow_hash(&self) -> Vec<u8> {
let mut blob = self.header.serialize();
blob.extend_from_slice(&merkle_root(self.miner_transaction.hash(), &self.transactions));
write_varint(&(1 + u64::try_from(self.transactions.len()).unwrap()), &mut blob).unwrap();
write_varint(
&(1 +
u64::try_from(self.transactions.len())
.expect("amount of transactions in block exceeded u64::MAX")),
&mut blob,
)
.expect("write failed but <Vec as io::Write> doesn't fail");
blob
}
@@ -132,7 +138,11 @@ impl Block {
// Monero pre-appends a VarInt of the block-to-hash'ss length before getting the block hash,
// but doesn't do this when getting the proof of work hash :)
let mut hashing_blob = Vec::with_capacity(9 + hashable.len());
write_varint(&u64::try_from(hashable.len()).unwrap(), &mut hashing_blob).unwrap();
write_varint(
&u64::try_from(hashable.len()).expect("length of block hash's preimage exceeded u64::MAX"),
&mut hashing_blob,
)
.expect("write failed but <Vec as io::Write> doesn't fail");
hashing_blob.append(&mut hashable);
let hash = keccak256(hashing_blob);

2
networks/monero/src/merkle.rs
View File

@@ -28,7 +28,7 @@ pub(crate) fn merkle_root(root: [u8; 32], leafs: &[[u8; 32]]) -> [u8; 32] {
let mut paired_hashes = Vec::with_capacity(overage);
while let Some(left) = rightmost.next() {
let right = rightmost.next().unwrap();
let right = rightmost.next().expect("rightmost is of even length");
paired_hashes.push(keccak256([left.as_ref(), &right].concat()));
}
drop(rightmost);

6
networks/monero/src/ringct.rs
View File

@@ -326,7 +326,9 @@ impl RctPrunable {
/// Serialize the RctPrunable to a `Vec<u8>`.
pub fn serialize(&self, rct_type: RctType) -> Vec<u8> {
let mut serialized = vec![];
self.write(&mut serialized, rct_type).unwrap();
self
.write(&mut serialized, rct_type)
.expect("write failed but <Vec as io::Write> doesn't fail");
serialized
}
@@ -441,7 +443,7 @@ impl RctProofs {
/// Serialize the RctProofs to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut serialized = vec![];
self.write(&mut serialized).unwrap();
self.write(&mut serialized).expect("write failed but <Vec as io::Write> doesn't fail");
serialized
}

34
networks/monero/src/transaction.rs
View File

@@ -53,7 +53,7 @@ impl Input {
/// Serialize the Input to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut res = vec![];
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
@@ -106,7 +106,7 @@ impl Output {
/// Write the Output to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut res = Vec::with_capacity(8 + 1 + 32);
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
@@ -163,7 +163,7 @@ impl Timelock {
/// Serialize the Timelock to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut res = Vec::with_capacity(1);
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
@@ -259,8 +259,8 @@ impl TransactionPrefix {
fn hash(&self, version: u64) -> [u8; 32] {
let mut buf = vec![];
write_varint(&version, &mut buf).unwrap();
self.write(&mut buf).unwrap();
write_varint(&version, &mut buf).expect("write failed but <Vec as io::Write> doesn't fail");
self.write(&mut buf).expect("write failed but <Vec as io::Write> doesn't fail");
keccak256(buf)
}
}
@@ -451,7 +451,7 @@ impl<P: PotentiallyPruned> Transaction<P> {
/// Write the Transaction to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut res = Vec::with_capacity(2048);
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
@@ -493,15 +493,16 @@ impl<P: PotentiallyPruned> Transaction<P> {
let mut buf = Vec::with_capacity(512);
// We don't use `self.write` as that may write the signatures (if this isn't pruned)
write_varint(&self.version(), &mut buf).unwrap();
prefix.write(&mut buf).unwrap();
write_varint(&self.version(), &mut buf)
.expect("write failed but <Vec as io::Write> doesn't fail");
prefix.write(&mut buf).expect("write failed but <Vec as io::Write> doesn't fail");
// We explicitly write the signatures ourselves here
let PrunableHash::V1(signatures) = prunable else {
panic!("hashing v1 TX with non-v1 prunable data")
};
for signature in signatures {
signature.write(&mut buf).unwrap();
signature.write(&mut buf).expect("write failed but <Vec as io::Write> doesn't fail");
}
keccak256(buf)
@@ -513,7 +514,10 @@ impl<P: PotentiallyPruned> Transaction<P> {
if let Some(proofs) = proofs {
let mut buf = Vec::with_capacity(512);
proofs.base().write(&mut buf, proofs.rct_type()).unwrap();
proofs
.base()
.write(&mut buf, proofs.rct_type())
.expect("write failed but <Vec as io::Write> doesn't fail");
hashes.extend(keccak256(&buf));
} else {
// Serialization of RctBase::Null
@@ -540,7 +544,10 @@ impl Transaction<NotPruned> {
Transaction::V2 { proofs, .. } => {
self.hash_with_prunable_hash(PrunableHash::V2(if let Some(proofs) = proofs {
let mut buf = Vec::with_capacity(1024);
proofs.prunable.write(&mut buf, proofs.rct_type()).unwrap();
proofs
.prunable
.write(&mut buf, proofs.rct_type())
.expect("write failed but <Vec as io::Write> doesn't fail");
keccak256(buf)
} else {
[0; 32]
@@ -563,7 +570,10 @@ impl Transaction<NotPruned> {
Transaction::V2 { proofs, .. } => self.hash_with_prunable_hash({
let Some(proofs) = proofs else { None? };
let mut buf = Vec::with_capacity(1024);
proofs.prunable.signature_write(&mut buf).unwrap();
proofs
.prunable
.signature_write(&mut buf)
.expect("write failed but <Vec as io::Write> doesn't fail");
PrunableHash::V2(keccak256(buf))
}),
})

4
networks/monero/wallet/address/src/base58check.rs
View File

@@ -76,8 +76,10 @@ pub(crate) fn decode(data: &str) -> Option<Vec<u8>> {
break;
}
}
let used_bytes = used_bytes
.expect("chunk of bounded length exhaustively searched but couldn't find matching length");
// Only push on the used bytes
res.extend(&sum.to_be_bytes()[(BLOCK_LEN - used_bytes.unwrap()) ..]);
res.extend(&sum.to_be_bytes()[(BLOCK_LEN - used_bytes) ..]);
}
Some(res)

13
networks/monero/wallet/address/src/lib.rs
View File

@@ -357,21 +357,21 @@ pub struct Address<const ADDRESS_BYTES: u128> {
impl<const ADDRESS_BYTES: u128> fmt::Debug for Address<ADDRESS_BYTES> {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
let hex = |bytes: &[u8]| -> String {
let hex = |bytes: &[u8]| -> Result<String, fmt::Error> {
let mut res = String::with_capacity(2 + (2 * bytes.len()));
res.push_str("0x");
for b in bytes {
write!(&mut res, "{b:02x}").unwrap();
write!(&mut res, "{b:02x}")?;
}
res
Ok(res)
};
fmt
.debug_struct("Address")
.field("network", &self.network)
.field("kind", &self.kind)
.field("spend", &hex(&self.spend.compress().to_bytes()))
.field("view", &hex(&self.view.compress().to_bytes()))
.field("spend", &hex(&self.spend.compress().to_bytes())?)
.field("view", &hex(&self.view.compress().to_bytes())?)
// This is not a real field yet is the most valuable thing to know when debugging
.field("(address)", &self.to_string())
.finish()
@@ -389,7 +389,8 @@ impl<const ADDRESS_BYTES: u128> fmt::Display for Address<ADDRESS_BYTES> {
if let AddressType::Featured { subaddress, payment_id, guaranteed } = self.kind {
let features_uint =
(u8::from(guaranteed) << 2) + (u8::from(payment_id.is_some()) << 1) + u8::from(subaddress);
write_varint(&features_uint, &mut data).unwrap();
write_varint(&features_uint, &mut data)
.expect("write failed but <Vec as io::Write> doesn't fail");
}
if let Some(id) = self.kind.payment_id() {
data.extend(id);

50
networks/monero/wallet/src/decoys.rs
View File

@@ -17,7 +17,7 @@ use crate::{
WalletOutput,
};
const RECENT_WINDOW: usize = 15;
const RECENT_WINDOW: u64 = 15;
const BLOCKS_PER_YEAR: usize = 365 * 24 * 60 * 60 / BLOCK_TIME;
#[allow(clippy::cast_precision_loss)]
const TIP_APPLICATION: f64 = (DEFAULT_LOCK_WINDOW * BLOCK_TIME) as f64;
@@ -27,7 +27,7 @@ async fn select_n(
rpc: &impl DecoyRpc,
height: usize,
real_output: u64,
ring_len: usize,
ring_len: u8,
fingerprintable_deterministic: bool,
) -> Result<Vec<(u64, [EdwardsPoint; 2])>, RpcError> {
if height < DEFAULT_LOCK_WINDOW {
@@ -48,8 +48,9 @@ async fn select_n(
// This assumes that each miner TX had one output (as sane) and checks we have sufficient
// outputs even when excluding them (due to their own timelock requirements)
// Considering this a temporal error for very new chains, it's sufficiently sane to have
if highest_output_exclusive_bound.saturating_sub(u64::try_from(COINBASE_LOCK_WINDOW).unwrap()) <
u64::try_from(ring_len).unwrap()
if highest_output_exclusive_bound.saturating_sub(
u64::try_from(COINBASE_LOCK_WINDOW).expect("coinbase lock window exceeds 2^{64}"),
) < u64::from(ring_len)
{
Err(RpcError::InternalError("not enough decoy candidates".to_string()))?;
}
@@ -67,7 +68,7 @@ async fn select_n(
let mut do_not_select = HashSet::new();
do_not_select.insert(real_output);
let decoy_count = ring_len - 1;
let decoy_count = usize::from(ring_len - 1);
let mut res = Vec::with_capacity(decoy_count);
let mut iters = 0;
@@ -87,8 +88,9 @@ async fn select_n(
// We check both that we aren't at the maximum amount of iterations and that the not-yet
// selected candidates exceed the amount of candidates necessary to trigger the next iteration
if (iters == MAX_ITERS) ||
((highest_output_exclusive_bound - u64::try_from(do_not_select.len()).unwrap()) <
u64::try_from(ring_len).unwrap())
((highest_output_exclusive_bound -
u64::try_from(do_not_select.len()).expect("amount of ignored decoys exceeds 2^{64}")) <
u64::from(ring_len))
{
Err(RpcError::InternalError("hit decoy selection round limit".to_string()))?;
}
@@ -99,13 +101,18 @@ async fn select_n(
// Use a gamma distribution, as Monero does
// https://github.com/monero-project/monero/blob/cc73fe71162d564ffda8e549b79a350bca53c45
// /src/wallet/wallet2.cpp#L142-L143
let mut age = Gamma::<f64>::new(19.28, 1.0 / 1.61).unwrap().sample(rng).exp();
let mut age = Gamma::<f64>::new(19.28, 1.0 / 1.61)
.expect("constant Gamma distribution could no longer be created")
.sample(rng)
.exp();
#[allow(clippy::cast_precision_loss)]
if age > TIP_APPLICATION {
age -= TIP_APPLICATION;
} else {
// f64 does not have try_from available, which is why these are written with `as`
age = (rng.next_u64() % u64::try_from(RECENT_WINDOW * BLOCK_TIME).unwrap()) as f64;
age = (rng.next_u64() %
(RECENT_WINDOW * u64::try_from(BLOCK_TIME).expect("BLOCK_TIME exceeded u64::MAX")))
as f64;
}
#[allow(clippy::cast_sign_loss, clippy::cast_possible_truncation)]
@@ -135,7 +142,11 @@ async fn select_n(
candidates.push(real_output);
// Sort candidates so the real spends aren't the ones at the end
candidates.sort();
Some(candidates.binary_search(&real_output).unwrap())
Some(
candidates
.binary_search(&real_output)
.expect("selected a ring which didn't include the real spend"),
)
} else {
None
};
@@ -169,11 +180,15 @@ async fn select_n(
async fn select_decoys<R: RngCore + CryptoRng>(
rng: &mut R,
rpc: &impl DecoyRpc,
ring_len: usize,
ring_len: u8,
height: usize,
input: &WalletOutput,
fingerprintable_deterministic: bool,
) -> Result<Decoys, RpcError> {
if ring_len == 0 {
Err(RpcError::InternalError("requesting a ring of length 0".to_string()))?;
}
// Select all decoys for this transaction, assuming we generate a sane transaction
// We should almost never naturally generate an insane transaction, hence why this doesn't
// bother with an overage
@@ -215,10 +230,13 @@ async fn select_decoys<R: RngCore + CryptoRng>(
Decoys::new(
offsets,
// Binary searches for the real spend since we don't know where it sorted to
u8::try_from(ring.partition_point(|x| x.0 < input.relative_id.index_on_blockchain)).unwrap(),
// TODO: Define our own collection whose `len` function returns `u8` to ensure this bound
// with types
u8::try_from(ring.partition_point(|x| x.0 < input.relative_id.index_on_blockchain))
.expect("ring of size <= u8::MAX had an index exceeding u8::MAX"),
ring.into_iter().map(|output| output.1).collect(),
)
.unwrap(),
.expect("selected a syntactically-invalid set of Decoys"),
)
}
@@ -234,7 +252,7 @@ impl OutputWithDecoys {
pub async fn new(
rng: &mut (impl Send + Sync + RngCore + CryptoRng),
rpc: &impl DecoyRpc,
ring_len: usize,
ring_len: u8,
height: usize,
output: WalletOutput,
) -> Result<OutputWithDecoys, RpcError> {
@@ -253,7 +271,7 @@ impl OutputWithDecoys {
pub async fn fingerprintable_deterministic_new(
rng: &mut (impl Send + Sync + RngCore + CryptoRng),
rpc: &impl DecoyRpc,
ring_len: usize,
ring_len: u8,
height: usize,
output: WalletOutput,
) -> Result<OutputWithDecoys, RpcError> {
@@ -297,7 +315,7 @@ impl OutputWithDecoys {
/// defined serialization.
pub fn serialize(&self) -> Vec<u8> {
let mut serialized = Vec::with_capacity(128);
self.write(&mut serialized).unwrap();
self.write(&mut serialized).expect("write failed but <Vec as io::Write> doesn't fail");
serialized
}

10
networks/monero/wallet/src/extra.rs
View File

@@ -67,7 +67,7 @@ impl PaymentId {
/// Serialize the PaymentId to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut res = Vec::with_capacity(1 + 8);
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
@@ -100,7 +100,7 @@ pub enum ExtraField {
///
/// This is used within miner transactions who are merge-mining Monero to specify the foreign
/// block they mined.
MergeMining(usize, [u8; 32]),
MergeMining(u64, [u8; 32]),
/// The additional transaction keys.
///
/// These are the per-output commitments to the randomness used for deriving outputs.
@@ -132,7 +132,7 @@ impl ExtraField {
}
ExtraField::MergeMining(height, merkle) => {
w.write_all(&[3])?;
write_varint(&u64::try_from(*height).unwrap(), w)?;
write_varint(height, w)?;
w.write_all(merkle)?;
}
ExtraField::PublicKeys(keys) => {
@@ -150,7 +150,7 @@ impl ExtraField {
/// Serialize the ExtraField to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut res = Vec::with_capacity(1 + 8);
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
@@ -280,7 +280,7 @@ impl Extra {
/// Serialize the Extra to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut buf = vec![];
self.write(&mut buf).unwrap();
self.write(&mut buf).expect("write failed but <Vec as io::Write> doesn't fail");
buf
}

11
networks/monero/wallet/src/lib.rs
View File

@@ -61,7 +61,7 @@ impl SharedKeyDerivations {
// If Gen, this should be the only input, making this loop somewhat pointless
// This works and even if there were somehow multiple inputs, it'd be a false negative
Input::Gen(height) => {
write_varint(height, &mut u).unwrap();
write_varint(height, &mut u).expect("write failed but <Vec as io::Write> doesn't fail");
}
Input::ToKey { key_image, .. } => u.extend(key_image.compress().to_bytes()),
}
@@ -83,7 +83,8 @@ impl SharedKeyDerivations {
// || o
{
let output_derivation: &mut Vec<u8> = output_derivation.as_mut();
write_varint(&o, output_derivation).unwrap();
write_varint(&o, output_derivation)
.expect("write failed but <Vec as io::Write> doesn't fail");
}
let view_tag = keccak256([b"view_tag".as_ref(), &output_derivation].concat())[0];
@@ -145,7 +146,11 @@ impl SharedKeyDerivations {
let amount_scalar = Scalar::from_bytes_mod_order(*amount) - amount_shared_sec_scalar;
// d2b from rctTypes.cpp
let amount = u64::from_le_bytes(amount_scalar.to_bytes()[0 .. 8].try_into().unwrap());
let amount = u64::from_le_bytes(
amount_scalar.to_bytes()[.. 8]
.try_into()
.expect("32-byte array couldn't have an 8-byte slice taken"),
);
Commitment::new(mask, amount)
}

26
networks/monero/wallet/src/output.rs
View File

@@ -18,7 +18,7 @@ use crate::{
#[derive(Clone, PartialEq, Eq, Zeroize, ZeroizeOnDrop)]
pub(crate) struct AbsoluteId {
pub(crate) transaction: [u8; 32],
pub(crate) index_in_transaction: u32,
pub(crate) index_in_transaction: u64,
}
impl core::fmt::Debug for AbsoluteId {
@@ -46,7 +46,7 @@ impl AbsoluteId {
/// This is not a Monero protocol defined struct, and this is accordingly not a Monero protocol
/// defined serialization.
fn read<R: Read>(r: &mut R) -> io::Result<AbsoluteId> {
Ok(AbsoluteId { transaction: read_bytes(r)?, index_in_transaction: read_u32(r)? })
Ok(AbsoluteId { transaction: read_bytes(r)?, index_in_transaction: read_u64(r)? })
}
}
@@ -128,11 +128,11 @@ impl OutputData {
self.commitment.write(w)
}
/*
/* Commented as it's unused, due to self being private
/// Serialize the OutputData to a `Vec<u8>`.
pub fn serialize(&self) -> Vec<u8> {
let mut res = Vec::with_capacity(32 + 32 + 40);
self.write(&mut res).unwrap();
self.write(&mut res).expect("write failed but <Vec as io::Write> doesn't fail");
res
}
*/
@@ -194,9 +194,17 @@ impl Metadata {
w.write_all(&[0])?;
}
w.write_all(&u32::try_from(self.arbitrary_data.len()).unwrap().to_le_bytes())?;
w.write_all(
&u64::try_from(self.arbitrary_data.len())
.expect("amount of arbitrary data chunks exceeded u64::MAX")
.to_le_bytes(),
)?;
for part in &self.arbitrary_data {
w.write_all(&[u8::try_from(part.len()).unwrap()])?;
// TODO: Define our own collection whose `len` function returns `u8` to ensure this bound
// with types
w.write_all(&[
u8::try_from(part.len()).expect("piece of arbitrary data exceeded max length of u8::MAX")
])?;
w.write_all(part)?;
}
Ok(())
@@ -224,7 +232,7 @@ impl Metadata {
payment_id: if read_byte(r)? == 1 { PaymentId::read(r).ok() } else { None },
arbitrary_data: {
let mut data = vec![];
for _ in 0 .. read_u32(r)? {
for _ in 0 .. read_u64(r)? {
let len = read_byte(r)?;
data.push(read_raw_vec(read_byte, usize::from(len), r)?);
}
@@ -260,7 +268,7 @@ impl WalletOutput {
}
/// The index of the output within the transaction.
pub fn index_in_transaction(&self) -> u32 {
pub fn index_in_transaction(&self) -> u64 {
self.absolute_id.index_in_transaction
}
@@ -349,7 +357,7 @@ impl WalletOutput {
/// defined serialization.
pub fn serialize(&self) -> Vec<u8> {
let mut serialized = Vec::with_capacity(128);
self.write(&mut serialized).unwrap();
self.write(&mut serialized).expect("write failed but <Vec as io::Write> doesn't fail");
serialized
}

14
networks/monero/wallet/src/scan.rs
View File

@@ -228,14 +228,11 @@ impl InternalScanner {
// Decrypt the payment ID
let payment_id = payment_id.map(|id| id ^ SharedKeyDerivations::payment_id_xor(ecdh));
let o = u64::try_from(o).expect("couldn't convert output index (usize) to u64");
res.push(WalletOutput {
absolute_id: AbsoluteId {
transaction: tx_hash,
index_in_transaction: o.try_into().unwrap(),
},
relative_id: RelativeId {
index_on_blockchain: output_index_for_first_ringct_output + u64::try_from(o).unwrap(),
},
absolute_id: AbsoluteId { transaction: tx_hash, index_in_transaction: o },
relative_id: RelativeId { index_on_blockchain: output_index_for_first_ringct_output + o },
data: OutputData { key: output_key, key_offset, commitment },
metadata: Metadata {
additional_timelock: tx.prefix().additional_timelock,
@@ -295,7 +292,8 @@ impl InternalScanner {
// Update the RingCT starting index for the next TX
if matches!(tx, Transaction::V2 { .. }) {
output_index_for_first_ringct_output += u64::try_from(tx.prefix().outputs.len()).unwrap()
output_index_for_first_ringct_output += u64::try_from(tx.prefix().outputs.len())
.expect("couldn't convert amount of outputs (usize) to u64")
}
}

12
networks/monero/wallet/src/send/mod.rs
View File

@@ -446,7 +446,7 @@ impl SignableTransaction {
/// defined serialization.
pub fn serialize(&self) -> Vec<u8> {
let mut buf = Vec::with_capacity(256);
self.write(&mut buf).unwrap();
self.write(&mut buf).expect("write failed but <Vec as io::Write> doesn't fail");
buf
}
@@ -553,9 +553,13 @@ impl SignableTransaction {
let mut tx = tx.transaction_without_signatures();
// Sign the CLSAGs
let clsags_and_pseudo_outs =
Clsag::sign(rng, clsag_signs, mask_sum, tx.signature_hash().unwrap())
.map_err(SendError::ClsagError)?;
let clsags_and_pseudo_outs = Clsag::sign(
rng,
clsag_signs,
mask_sum,
tx.signature_hash().expect("signing a transaction which isn't signed?"),
)
.map_err(SendError::ClsagError)?;
// Fill in the CLSAGs/pseudo-outs
let inputs_len = tx.prefix().inputs.len();

2
networks/monero/wallet/src/send/multisig.rs
View File

@@ -251,7 +251,7 @@ impl SignMachine<Transaction> for TransactionSignMachine {
}
let tx = tx.transaction_without_signatures();
let msg = tx.signature_hash().unwrap();
let msg = tx.signature_hash().expect("signing a transaction which isn't signed?");
// Iterate over each CLSAG calling sign
let mut shares = Vec::with_capacity(to_sign.len());

19
networks/monero/wallet/src/send/tx.rs
View File

@@ -73,7 +73,9 @@ impl SignableTransaction {
{
let id = (u64::from_le_bytes(id) ^ u64::from_le_bytes(*id_xor)).to_le_bytes();
let mut id_vec = Vec::with_capacity(1 + 8);
PaymentId::Encrypted(id).write(&mut id_vec).unwrap();
PaymentId::Encrypted(id)
.write(&mut id_vec)
.expect("write failed but <Vec as io::Write> doesn't fail");
extra.push_nonce(id_vec);
} else {
/*
@@ -96,7 +98,9 @@ impl SignableTransaction {
.expect("multiple change outputs?");
let mut id_vec = Vec::with_capacity(1 + 8);
// The dummy payment ID is [0; 8], which when xor'd with the mask, is just the mask
PaymentId::Encrypted(*payment_id_xor).write(&mut id_vec).unwrap();
PaymentId::Encrypted(*payment_id_xor)
.write(&mut id_vec)
.expect("write failed but <Vec as io::Write> doesn't fail");
extra.push_nonce(id_vec);
}
}
@@ -109,7 +113,7 @@ impl SignableTransaction {
}
let mut serialized = Vec::with_capacity(32 * amount_of_keys);
extra.write(&mut serialized).unwrap();
extra.write(&mut serialized).expect("write failed but <Vec as io::Write> doesn't fail");
serialized
}
@@ -180,7 +184,8 @@ impl SignableTransaction {
push_scalar(&mut bp);
}
for _ in 0 .. 2 {
write_varint(&lr_len, &mut bp).unwrap();
write_varint(&lr_len, &mut bp)
.expect("write failed but <Vec as io::Write> doesn't fail");
for _ in 0 .. lr_len {
push_point(&mut bp);
}
@@ -204,7 +209,8 @@ impl SignableTransaction {
push_scalar(&mut bp);
}
for _ in 0 .. 2 {
write_varint(&lr_len, &mut bp).unwrap();
write_varint(&lr_len, &mut bp)
.expect("write failed but <Vec as io::Write> doesn't fail");
for _ in 0 .. lr_len {
push_point(&mut bp);
}
@@ -261,7 +267,8 @@ impl SignableTransaction {
break;
}
}
weight_and_fee.unwrap()
weight_and_fee
.expect("length of highest possible fee was greater than highest possible fee length")
}
}

8
networks/monero/wallet/src/send/tx_keys.rs
View File

@@ -21,7 +21,9 @@ fn seeded_rng(
mut input_keys: Vec<EdwardsPoint>,
) -> ChaCha20Rng {
// Apply the DST
let mut transcript = Zeroizing::new(vec![u8::try_from(dst.len()).unwrap()]);
let mut transcript = Zeroizing::new(vec![
u8::try_from(dst.len()).expect("internal RNG with constant DST had a too-long DST specified")
]);
transcript.extend(dst);
// Bind to the outgoing view key to prevent foreign entities from rebuilding the transcript
@@ -116,12 +118,12 @@ impl SignableTransaction {
fn transaction_keys(&self) -> (Zeroizing<Scalar>, Vec<Zeroizing<Scalar>>) {
let mut tx_keys = TransactionKeys::new(&self.outgoing_view_key, self.input_keys());
let tx_key = tx_keys.next().unwrap();
let tx_key = tx_keys.next().expect("TransactionKeys (never-ending) was exhausted");
let mut additional_keys = vec![];
if self.should_use_additional_keys() {
for _ in 0 .. self.payments.len() {
additional_keys.push(tx_keys.next().unwrap());
additional_keys.push(tx_keys.next().expect("TransactionKeys (never-ending) was exhausted"));
}
}
(tx_key, additional_keys)

4
networks/monero/wallet/tests/runner/mod.rs
View File

@@ -21,7 +21,7 @@ use monero_wallet::{
mod builder;
pub use builder::SignableTransactionBuilder;
pub fn ring_len(rct_type: RctType) -> usize {
pub fn ring_len(rct_type: RctType) -> u8 {
match rct_type {
RctType::ClsagBulletproof => 11,
RctType::ClsagBulletproofPlus => 16,
@@ -118,7 +118,7 @@ pub fn check_weight_and_fee(tx: &Transaction, fee_rate: FeeRate) {
let fee = proofs.base.fee;
let weight = tx.weight();
let expected_weight = fee_rate.calculate_weight_from_fee(fee);
let expected_weight = fee_rate.calculate_weight_from_fee(fee).unwrap();
assert_eq!(weight, expected_weight);
let expected_fee = fee_rate.calculate_fee_from_weight(weight);