AEGIS for Rust

This is a Rust implementation of the AEGIS authenticated cipher, ported from the Zig standard library.

AEGIS is extremely fast on CPUs with AES acceleration, has a large nonce size, and is key committing.

Cargo flags

• std: allow dynamic allocations

std is the default.

• pure-rust: don't use the cc crate to take advantage of the optimized implementation ported from libsodium. Setting this flag will substantially degrade performance. Only required if you need to support old x86_64 or ARM CPUs without AES acceleration.

A benchmark can be run that way:

export RUSTFLAGS="-C target-cpu=native"
cargo bench

For benchmarking, RUSTFLAGS is set so that the AES-GCM implementations can take advantage of hardware acceleration.

Benchmarks

Benchmarks take a 16384 bytes input block. Results are in bytes per second.

Rust implementations

Crates:

• aes-gcm
• chacha20poly1305
• aegis128l

rustc version 1.65.0, wasmtime version 4.0.0.

Zen2

Macbook Pro - Apple M1

WebAssembly (Wasmtime, Zen2)

WebAssembly (Wasmtime, Apple M1)

Other implementations, Zen2