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use criterion::{Criterion, Throughput, criterion_group, criterion_main, measurement::Measurement};
use rand::prelude::*;
#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))]
use criterion::measurement::WallTime as Meas;
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
use criterion_cycles_per_byte::CyclesPerByte as Meas;
#[cfg(feature = "counter-galois-onion")]
use aes::{Aes128Enc, Aes256Enc};
use tor_bytes::SecretBuf;
use tor_llcrypto::{
cipher::aes::{Aes128Ctr, Aes256Ctr},
d::{Sha1, Sha3_256},
};
#[cfg(feature = "counter-galois-onion")]
use tor_proto::bench_utils::cgo;
use tor_proto::bench_utils::{
BENCH_CHAN_CMD, CryptInit, InboundRelayLayer, KGen, RelayCellBody, RelayLayer, tor1,
};
/// Helper macro to set up a relay encryption benchmark.
macro_rules! relay_encrypt_setup {
($relay_state_construct: path) => {{
let seed1: SecretBuf = b"hidden we are free".to_vec().into();
let relay_state = $relay_state_construct(KGen::new(seed1)).unwrap();
let (_, relay_state, _) = relay_state.split_relay_layer();
let mut rng = rand::rng();
let mut cell = [0u8; 509];
rng.fill(&mut cell[..]);
let cell: RelayCellBody = Box::new(cell).into();
(cell, relay_state)
}};
}
/// Benchmark a relay encrypting a relay cell to send to the client.
pub fn relay_encrypt_benchmark(c: &mut Criterion<impl Measurement>) {
// Group for the Tor1 relay crypto with 498 bytes of data per relay cell.
let mut group = c.benchmark_group("relay_encrypt");
group.throughput(Throughput::Bytes(tor1::TOR1_THROUGHPUT));
group.bench_function("Tor1RelayCrypto", |b| {
b.iter_batched_ref(
|| relay_encrypt_setup!(tor1::CryptStatePair::<Aes128Ctr, Sha1>::construct),
|(cell, relay_state)| {
relay_state.encrypt_inbound(BENCH_CHAN_CMD, cell);
},
criterion::BatchSize::SmallInput,
);
});
group.bench_function("Tor1Hsv3RelayCrypto", |b| {
b.iter_batched_ref(
|| relay_encrypt_setup!(tor1::CryptStatePair::<Aes256Ctr, Sha3_256>::construct),
|(cell, relay_state)| {
relay_state.encrypt_inbound(BENCH_CHAN_CMD, cell);
},
criterion::BatchSize::SmallInput,
);
});
group.finish();
#[cfg(feature = "counter-galois-onion")]
{
// Group for the Counter-Galois-Onion relay crypto with ~488 bytes of data per relay cell.
let mut group = c.benchmark_group("relay_encrypt");
group.throughput(Throughput::Bytes(cgo::CGO_THROUGHPUT));
group.bench_function("CGO_Aes128", |b| {
b.iter_batched_ref(
|| relay_encrypt_setup!(cgo::CryptStatePair::<Aes128Enc, Aes128Enc>::construct),
|(cell, relay_state)| {
relay_state.encrypt_inbound(BENCH_CHAN_CMD, cell);
},
criterion::BatchSize::SmallInput,
);
});
group.bench_function("CGO_Aes256", |b| {
b.iter_batched_ref(
|| relay_encrypt_setup!(cgo::CryptStatePair::<Aes256Enc, Aes256Enc>::construct),
|(cell, relay_state)| {
relay_state.encrypt_inbound(BENCH_CHAN_CMD, cell);
},
criterion::BatchSize::SmallInput,
);
});
group.finish();
}
}
criterion_group!(
name = relay_encrypt;
config = Criterion::default()
.with_measurement(Meas)
.sample_size(5000);
targets = relay_encrypt_benchmark);
criterion_main!(relay_encrypt);
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