A pure Rust multi-provider digital signature library which provides a thread-safe and object-safe API.
Presently implements the Ed25519 elliptic curve public-key signature system described in RFC 8032 with software (ed25519-dalek, ring, sodiumoxide) and hardware (yubihsm-rs) providers available.
About
Signatory exposes a thread-and-object-safe API for creating digital signatures which allows several signature providers to be compiled-in and available with specific providers selected at runtime.
Provider Support
Ed25519 providers
| Cargo Feature | Crate | Type | Signing | Verification |
|---|---|---|---|---|
dalek-provider |
ed25519-dalek | Soft | 43 k/s | 17 k/s |
ring-provider |
ring | Soft | 31 k/s | 10 k/s |
sodiumoxide-provider |
sodiumoxide | Soft | 38 k/s | 14 k/s |
yubihsm-provider |
yubihsm-rs | Hard | ~8/s | N/A |
Above benchmarks performed using cargo bench on an Intel Xeon E3-1225 v5 @
3.30GHz with the nightly cargo feature enabled.
YubiHSM2 Provider Notes
The yubihsm-rs crate depends on the aesni crate, which uses the new "stdsimd"
API (coming soon to stable!) to invoke hardware AES instructions via core::arch.
To access these features, you will need both a relatively recent Rust nightly and to pass the following as RUSTFLAGS:
RUSTFLAGS=-Ctarget-feature=+aes`
You can configure your ~/.cargo/config to always pass these flags:
[]
= ["-Ctarget-feature=+aes"]
License
Signatory is distributed under the terms of both the MIT license and the Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT for details.