mirror of
https://github.com/jmcorgan/fips.git
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Martti MalmiandJohnathan Corgan
5cda4a9a55
The chacha20 crate (RustCrypto) ships SSE2 + soft backends only — on
aarch64 (Apple Silicon, ARM Linux servers, Docker on M-series Macs) it
falls through to a portable software impl at ~600–800 MB/s/core. ring
0.17 wraps BoringSSL's hand-tuned ChaCha20-Poly1305, which dispatches
to NEON on aarch64 and AVX2/AVX-512 on x86_64 — typically 3-5 GB/s/core
on the same hardware.
Same wire format. ChaCha20-Poly1305 is byte-deterministic for a given
(key, nonce, plaintext, aad), so any correct AEAD implementation
produces identical ciphertext. The full noise test suite covers this
implicitly: IK and XK roundtrip handshakes, replay window correctness,
multi-message nonce sequencing, and 100-message stress all pass at
1129/1129 (the lib's full `cargo test` count) — these only succeed if
ring's output matches what the receiver's existing replay-window
decrypt path expects.
Implementation notes:
* `LessSafeKey` (and `UnboundKey`) deliberately do not implement
Clone for safety. `CipherState`'s manual Clone impl rebuilds it
from the retained 32-byte key — cheap for ChaCha20-Poly1305 since
construction is essentially a key copy + a constant-time check.
* The keyed AEAD is now cached in `CipherState.cipher` instead of
being re-derived per packet. This was already a perf win for the
chacha20poly1305 backend (`new_from_slice` per packet was hot in
profiles); for ring it's a bigger win because `LessSafeKey`
construction also derives the Poly1305 key.
* Public `Vec<u8>`-returning API preserved. New module-private
`seal`/`open` helpers wrap ring's `seal_in_place_append_tag` /
`open_in_place` so the per-packet allocation pattern is local to
one place.
* `EndToEndState::Established` triggers `clippy::large_enum_variant`
after the swap (`NoiseSession` grew from ~600 to ~1.5 KB because
ring precomputes the Poly1305 key state at construction). That
precomputation is the win — boxing the variant would re-add an
indirection per packet and work against it. `#[allow]`'d at the
enum decl with a justifying comment.
ring is widely deployed (rustls, hyper-rustls, AWS SDK, …) and a
pure-Rust crate (uses BoringSSL's asm via a vendored build). It
introduces no new C toolchain requirements that aren't already there
for any rustls user.
Bench data from a downstream consumer of this crate (Docker e2e,
DURATION=10, identical hardware before/after, aarch64 Linux on
Apple Silicon):
2-node direct (A↔B):
TCP 1-stream 437 → 1097 Mbps (2.51×)
TCP 4-stream 439 → 1109 Mbps (2.53×)
TCP 8-stream 445 → 1069 Mbps (2.40×)
UDP @1000 Mbit 599/40% loss → 1000 Mbps lossless
ping under load ~0.6 ms (unchanged)
3-node forced transit (A → C → B):
TCP 1-stream 438 → 1019 Mbps (2.33×)
TCP 4-stream 421 → 982 Mbps (2.33×)
TCP 8-stream 443 → 1031 Mbps (2.33×)
UDP @1000 Mbit 475/52% loss → 1000 Mbps lossless
ping under load 7.68 ms / 215 ms max → 0.72 ms / 3.6 ms max
The relay-path lift is the cleanest tell on the bottleneck: the
transit node was crypto-bound (single-threaded soft chacha couldn't
keep up with offered rate), so the queue accumulated under load. With
NEON the relay isn't crypto-bound and the queue stops accumulating —
the 215ms ping-tail collapses to 3.6ms.
105 lines
3.7 KiB
TOML
105 lines
3.7 KiB
TOML
[package]
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name = "fips"
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version = "0.3.0-dev"
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edition = "2024"
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description = "A distributed, decentralized network routing protocol for mesh nodes connecting over arbitrary transports"
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license = "MIT"
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authors = ["Johnathan Corgan <jcorgan@corganlabs.com>"]
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repository = "https://github.com/jmcorgan/fips"
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readme = "README.md"
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[dependencies]
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ratatui = "0.30"
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secp256k1 = { version = "0.30", features = ["rand", "global-context"] }
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sha2 = "0.10"
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hkdf = "0.12"
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ring = "0.17"
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rand = "0.10.1"
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thiserror = "2.0"
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bech32 = "0.11"
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serde = { version = "1.0", features = ["derive"] }
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serde_json = "1.0"
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serde_yaml = "0.9"
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dirs = "6.0"
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hex = "0.4"
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clap = { version = "4.6", features = ["derive"] }
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tracing = "0.1"
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tracing-subscriber = { version = "0.3", features = ["env-filter"] }
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tokio = { version = "1", features = ["rt", "macros", "signal", "sync", "net", "time", "process", "io-util"] }
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futures = "0.3"
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simple-dns = "0.11.2"
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socket2 = { version = "0.6.2", features = ["all"] }
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tokio-socks = "0.5"
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portable-atomic = { version = "1", features = ["std"] }
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nostr = { version = "0.44", features = ["std", "nip59"] }
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nostr-sdk = "0.44"
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[target.'cfg(unix)'.dependencies]
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tun = { version = "0.8.7", features = ["async"] }
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libc = "0.2"
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[target.'cfg(target_os = "linux")'.dependencies]
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rtnetlink = "0.21.0"
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rustables = "0.8.7"
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procfs = { version = "0.18", default-features = false }
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# bluer/BlueZ needs glibc — see build.rs `bluer_available` cfg gate.
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[target.'cfg(all(target_os = "linux", not(target_env = "musl")))'.dependencies]
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bluer = { version = "0.17", features = ["bluetoothd", "l2cap"] }
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[target.'cfg(windows)'.dependencies]
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wintun = "0.5"
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windows-service = "0.8.1"
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[package.metadata.deb]
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maintainer = "Johnathan Corgan <jcorgan@corganlabs.com>"
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copyright = "2026 Johnathan Corgan"
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license-file = ["LICENSE", "0"]
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section = "net"
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priority = "optional"
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depends = "libc6, systemd, libdbus-1-3"
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recommends = "bluez"
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extended-description = """\
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FIPS is a distributed, decentralized network routing protocol for mesh \
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nodes connecting over arbitrary transports including UDP, TCP, Ethernet, \
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Tor, and Bluetooth (BLE). It provides encrypted peer-to-peer connectivity \
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with automatic key management, TUN-based virtual networking, and .fips DNS \
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resolution."""
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maintainer-scripts = "packaging/debian/"
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assets = [
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["target/release/fips", "/usr/bin/", "755"],
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["target/release/fipsctl", "/usr/bin/", "755"],
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["target/release/fipstop", "/usr/bin/", "755"],
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["packaging/common/fips.yaml", "/etc/fips/fips.yaml", "600"],
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["packaging/common/hosts", "/etc/fips/hosts", "644"],
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["packaging/common/fips.nft", "/etc/fips/fips.nft", "644"],
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["packaging/debian/fips.service", "/lib/systemd/system/fips.service", "644"],
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["packaging/debian/fips-dns.service", "/lib/systemd/system/fips-dns.service", "644"],
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["packaging/debian/fips-firewall.service", "/lib/systemd/system/fips-firewall.service", "644"],
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["packaging/common/fips-dns-setup", "/usr/lib/fips/fips-dns-setup", "755"],
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["packaging/common/fips-dns-teardown", "/usr/lib/fips/fips-dns-teardown", "755"],
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["packaging/debian/fips.tmpfiles", "/usr/lib/tmpfiles.d/fips.conf", "644"],
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["target/release/fips-gateway", "/usr/bin/", "755"],
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["packaging/debian/fips-gateway.service", "/lib/systemd/system/fips-gateway.service", "644"],
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["docs/design/fips-security.md", "/usr/share/doc/fips/fips-security.md", "644"],
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]
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conf-files = ["/etc/fips/fips.yaml", "/etc/fips/hosts", "/etc/fips/fips.nft"]
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[dev-dependencies]
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tempfile = "3.15"
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criterion = { version = "0.8.2", features = ["html_reports"] }
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tokio = { version = "1", features = ["test-util"] }
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[[bin]]
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name = "fipsctl"
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path = "src/bin/fipsctl.rs"
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[[bin]]
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name = "fips-gateway"
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path = "src/bin/fips-gateway.rs"
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[[bin]]
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name = "fipstop"
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path = "src/bin/fipstop/main.rs"
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