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{"files":{".cargo_vcs_info.json":"77591943d2d2b66d7017b38acc7e72accf36a2041214eeb8e847cc36d9cf53b9","CHANGELOG.md":"48959783c47dda29c9c9a31b25a027ac47434d0283304a51ae46901adb66c318","Cargo.toml":"c6fffc86c6297739753fd78ad9ccb9c15385704329259a986530e09732957c82","Cargo.toml.orig":"3f788d5558fe6db65d6847d75c4c59161959d4d11140e2df5746955af100bc89","LICENSE-APACHE":"78779d420019e6b4630376af8e86b6b335ee8a2f89ede6e0411e0469a326aaa4","LICENSE-MIT":"b3470648aff02beb36d7a53240fc9260ed80ed93bd43bace6b67d7ef7336ee33","README.md":"ff72e7e62e3baa89106f854a4dd3fe29be43c6a16549d768a94ae920f5024485","src/hex.rs":"1a73417e4945e73627379dcc69d444044985c5aa60410c3d2edaff2198160692","src/lib.rs":"7407dd37d37865f43a346f4e156c492800a9992e8ab54bf49f95f5b7a42bd71c","src/pkcs8.rs":"bac999d6e9f48790857e63299c6cf6d570eda1a570e383813725ff8507a38fd8","src/serde.rs":"45f292387bf613e726302dfd87a5d05be706fac4603facccc9bc6c93157c6b77","tests/examples/pkcs8-v1.der":"80b885d1af82668ad76d1c5a1a916b5bfc23d247e2f7f450e45b5c1024843e96","tests/examples/pkcs8-v1.pem":"4b4fc44435f8d20dd4e915752db1019d3936877152b95d5f39414f422b1110cd","tests/examples/pkcs8-v2.der":"78f1cd2051065b209431249093f218b0e01a5fd0b9e756db820d4893d9dbbf55","tests/examples/pkcs8-v2.pem":"4e571bdf609198461c86e479f323dee566d9c2beda5d9e45fcc792f8297b041e","tests/examples/pubkey.der":"a1e9156054e04fac899ae9f275132cdc07a5dbc4ea2c2ad3a1ffc6e0d253681f","tests/examples/pubkey.pem":"f7a7c27ec5c95e97c8f2c4bc8483dad6b086101d7ce86272e09521ca25b32ead","tests/hex.rs":"ac79a35db758794e86a6f91fa93a8c74533881337b2f4f563eb344f6f8e263c0","tests/pkcs8.rs":"33449ad1f438e5415f4c97f8a2a64613b84f2850c1e03133261f0fc36cb095fa","tests/serde.rs":"9d06fd11f4164e63c577b5dffec94b4274bb9b206cbfc29f6b6566957eeb3858"},"package":"115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"}

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{
"git": {
"sha1": "07b095c32a3527ee47da5c4878bf203557b36e5e"
},
"path_in_vcs": "ed25519"
}

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# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## 2.2.3 (2023-10-15)
### Changed
- Bump `ring-compat` from 0.7 to 0.8 ([#744])
- Enable `pkcs8/std` feature when `std` feature is enabled ([#746])
- Hex-format `Signature` components in `Debug` impl ([#747])
[#744]: https://github.com/RustCrypto/signatures/pull/744
[#746]: https://github.com/RustCrypto/signatures/pull/746
[#747]: https://github.com/RustCrypto/signatures/pull/747
## 2.2.2 (2023-08-13)
### Changed
- Bump `ed25519-dalek` to v2 ([#738])
[#738]: https://github.com/RustCrypto/signatures/pull/738
## 2.2.1 (2023-04-03)
### Changed
- Bump `ring-compat` dev-dependency to v0.7 ([#692])
- Bump `ed25519-dalek` to v2.0.0-rc.2 ([#693])
[#692]: https://github.com/RustCrypto/signatures/pull/692
[#693]: https://github.com/RustCrypto/signatures/pull/693
## 2.2.0 (2023-03-01)
### Changed
- Bump `pkcs8` dependency to v0.10 ([#665])
[#665]: https://github.com/RustCrypto/signatures/pull/665
## 2.1.0 (2023-01-21)
### Changed
- Use namespaced features for `serde_bytes`; MSRV 1.60 ([#628])
[#628]: https://github.com/RustCrypto/signatures/pull/628
## 2.0.1 (2023-01-21)
### Changed
- Make `Signature` parsing infallible ([#623])
[#623]: https://github.com/RustCrypto/signatures/pull/623
## 2.0.0 (2023-01-15) [YANKED]
### Added
- `pkcs8` re-exports ([#589], [#590], [#591], [#592])
- `Signature::from_components` method ([#600])
- Impl `TryFrom<SignatureBytes>` for `Signature` ([#601])
### Changed
- Use `PublicKeyBytes` as `KeypairBytes::public_key` ([#570])
- `Signature::from_bytes` takes `SignatureBytes` as an argument ([#593])
- Store `R` and `s` components separately ([#595])
- Bump `signature` crate dependency to v2.0 ([#614])
### Removed
- Deprecated `From<[u8; 64]>` conversion for signature ([#564])
- `AsRef<[u8]>` impl on `signature` ([#595])
[#564]: https://github.com/RustCrypto/signatures/pull/564
[#570]: https://github.com/RustCrypto/signatures/pull/570
[#589]: https://github.com/RustCrypto/signatures/pull/589
[#590]: https://github.com/RustCrypto/signatures/pull/590
[#591]: https://github.com/RustCrypto/signatures/pull/591
[#592]: https://github.com/RustCrypto/signatures/pull/592
[#593]: https://github.com/RustCrypto/signatures/pull/593
[#595]: https://github.com/RustCrypto/signatures/pull/595
[#600]: https://github.com/RustCrypto/signatures/pull/600
[#601]: https://github.com/RustCrypto/signatures/pull/601
[#614]: https://github.com/RustCrypto/signatures/pull/614
## 1.5.3 (2023-01-15)
### Changed
- Fix `signature` version requirement which accidentally matched v2 or above ([#616])
[#616]: https://github.com/RustCrypto/signatures/pull/616
## 1.5.2 (2022-05-16) [YANKED]
### Fixed
- Overflow handling in `serde` deserializers ([#482])
[#482]: https://github.com/RustCrypto/signatures/pull/482
## 1.5.1 (2022-05-15) [YANKED]
### Fixed
- Use `TryInto` in `serde` deserializers ([#479])
[#479]: https://github.com/RustCrypto/signatures/pull/479
## 1.5.0 (2022-05-09) [YANKED]
### Changed
- Bump `pkcs8` dependency to v0.9 ([#473])
[#473]: https://github.com/RustCrypto/signatures/pull/473
## 1.4.1 (2022-03-18) [YANKED]
### Added
- License files ([#447])
- `pkcs8::PublicKeyBytes` type ([#455])
[#447]: https://github.com/RustCrypto/signatures/pull/447
[#455]: https://github.com/RustCrypto/signatures/pull/455
## 1.4.0 (2022-02-25) [YANKED]
This crate now requires **Rust 1.56** at a minimum as the Rust edition has been
upgraded to 2021.
Previous 1.x releases of this crate supported an MSRV of 1.47. If you would
like to use this crate with earlier releases of Rust, add the following version
constraint in your project's Cargo.toml to constrain it to the supported
version range:
```toml
[dependencies]
ed25519 = ">=1, <1.4" # ed25519 1.4 requires MSRV 1.56
```
Note that is our policy that we may change the MSRV in the future, but it will
be accompanied by a minor version bump.
### Added
- `Signature::to_vec` ([#428])
### Changed
- Rust 2021 edition upgrade ([#412])
[#412]: https://github.com/RustCrypto/signatures/pull/412
[#428]: https://github.com/RustCrypto/signatures/pull/428
## 1.3.0 (2021-11-18) [YANKED]
### Added
- `Signature::BYTE_SIZE` constant ([#380])
- PKCS#8 support via `KeypairBytes` type ([#381])
- `zeroize` feature ([#400])
- Impl `Display`/`LowerHex`/`UpperHex`/`FromStr` for `Signature` ([#402])
### Changed
- Deprecate `SIGNATURE_LENGTH` constant in favor of `Signature::BYTE_SIZE` ([#380])
- Deprecate `Signature::new` in favor of `Signature::from_bytes`/`TryFrom` ([#401])
- `Signature::new` now panics on invalid signatures ([#403])
[#380]: https://github.com/RustCrypto/signatures/pull/380
[#381]: https://github.com/RustCrypto/signatures/pull/381
[#400]: https://github.com/RustCrypto/signatures/pull/400
[#401]: https://github.com/RustCrypto/signatures/pull/401
[#402]: https://github.com/RustCrypto/signatures/pull/402
[#403]: https://github.com/RustCrypto/signatures/pull/403
## 1.2.0 (2021-07-21)
### Added
- `serde_bytes` optional dependency ([#337])
[#337]: https://github.com/RustCrypto/signatures/pull/337
## 1.1.1 (2021-04-30)
### Changed
- Updates for `ring-compat` v0.2.1 ([#291])
[#291]: https://github.com/RustCrypto/signatures/pull/291
## 1.1.0 (2021-04-30)
### Changed
- Bump `ring-compat` to v0.2; MSRV 1.47+ ([#289])
### Fixed
- Compile error in example ([#246])
[#246]: https://github.com/RustCrypto/signatures/pull/246
[#289]: https://github.com/RustCrypto/signatures/pull/289
## 1.0.3 (2020-10-12)
### Added
- `ring-compat` usage example ([#187])
[#187]: https://github.com/RustCrypto/signatures/pull/187
## 1.0.2 (2020-09-11)
### Added
- `ed25519-dalek` usage example ([#167])
[#167]: https://github.com/RustCrypto/signatures/pull/167
## 1.0.1 (2020-04-20)
### Added
- Usage documentation ([#83])
[#83]: https://github.com/RustCrypto/signatures/pull/83
## 1.0.0 (2020-04-18)
### Changed
- Upgrade `signature` crate to v1.0 final release ([#80])
[#80]: https://github.com/RustCrypto/signatures/pull/80
## 1.0.0-pre.4 (2020-03-17)
### Changed
- Avoid serializing a length prefix with `serde` ([#78])
[#78]: https://github.com/RustCrypto/signatures/pull/78
## 1.0.0-pre.3 (2020-03-16)
### Changed
- Upgrade `signature` crate to v1.0.0-pre.3 ([#74])
- Bump MSRV to 1.40 ([#75])
[#74]: https://github.com/RustCrypto/signatures/pull/74
[#75]: https://github.com/RustCrypto/signatures/pull/75
## 1.0.0-pre.2 (2020-03-08)
### Changed
- Upgrade to `signature` crate v1.0.0-pre.3 ([#71])
- Bump MSRV to 1.37 ([#63])
[#71]: https://github.com/RustCrypto/signatures/pull/71
[#63]: https://github.com/RustCrypto/signatures/pull/63
## 1.0.0-pre.1 (2019-10-11)
### Added
- Optional `serde` support ([#40])
- Add `TryFrom` impl for `Signature` ([#39])
### Changed
- Upgrade to `signature` 1.0.0-pre.1 ([#41])
[#41]: https://github.com/RustCrypto/signatures/pull/41
[#40]: https://github.com/RustCrypto/signatures/pull/40
[#39]: https://github.com/RustCrypto/signatures/pull/39
## 1.0.0-pre.0 (2019-10-11)
### Changed
- Upgrade to `signature` 1.0.0-pre.0 ([#34])
[#34]: https://github.com/RustCrypto/signatures/pull/34
## 0.2.0 (2019-10-10)
### Changed
- Upgrade to `signature` v0.3; MSRV 1.36+ ([#29])
[#29]: https://github.com/RustCrypto/signatures/pull/29
## 0.1.0 (2019-08-10)
- Initial release

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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2021"
rust-version = "1.60"
name = "ed25519"
version = "2.2.3"
authors = ["RustCrypto Developers"]
description = """
Edwards Digital Signature Algorithm (EdDSA) over Curve25519 (as specified in RFC 8032)
support library providing signature type definitions and PKCS#8 private key
decoding/encoding support
"""
documentation = "https://docs.rs/ed25519"
readme = "README.md"
keywords = [
"crypto",
"curve25519",
"ecc",
"signature",
"signing",
]
categories = [
"cryptography",
"no-std",
]
license = "Apache-2.0 OR MIT"
repository = "https://github.com/RustCrypto/signatures/tree/master/ed25519"
[package.metadata.docs.rs]
all-features = true
rustdoc-args = [
"--cfg",
"docsrs",
]
[dependencies.pkcs8]
version = "0.10"
optional = true
[dependencies.serde]
version = "1"
optional = true
default-features = false
[dependencies.serde_bytes]
version = "0.11"
optional = true
[dependencies.signature]
version = "2"
default-features = false
[dependencies.zeroize]
version = "1"
optional = true
default-features = false
[dev-dependencies.bincode]
version = "1"
[dev-dependencies.ed25519-dalek]
version = "2"
features = ["rand_core"]
[dev-dependencies.hex-literal]
version = "0.4"
[dev-dependencies.rand_core]
version = "0.6"
features = ["std"]
[dev-dependencies.ring-compat]
version = "0.8"
features = ["signature"]
default-features = false
[features]
alloc = ["pkcs8?/alloc"]
default = ["std"]
pem = [
"alloc",
"pkcs8/pem",
]
serde_bytes = [
"serde",
"dep:serde_bytes",
]
std = [
"pkcs8?/std",
"signature/std",
]

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Copyright (c) 2018-2023 RustCrypto Developers
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# [RustCrypto]: Ed25519
[![crate][crate-image]][crate-link]
[![Docs][docs-image]][docs-link]
[![Build Status][build-image]][build-link]
![Apache2/MIT licensed][license-image]
![Rust Version][rustc-image]
[![Project Chat][chat-image]][chat-link]
[Edwards Digital Signature Algorithm (EdDSA)][1] over Curve25519 as specified
in [RFC 8032][2].
[Documentation][docs-link]
## About
This crate doesn't contain an implementation of Ed25519, but instead
contains an [`ed25519::Signature`][3] type which other crates can use in
conjunction with the [`signature::Signer`][4] and [`signature::Verifier`][5]
traits.
These traits allow crates which produce and consume Ed25519 signatures
to be written abstractly in such a way that different signer/verifier
providers can be plugged in, enabling support for using different
Ed25519 implementations, including HSMs or Cloud KMS services.
## Minimum Supported Rust Version
This crate requires **Rust 1.60** at a minimum.
Our policy is to allow MSRV to be raised in future released without that
qualifing as a SemVer-breaking change, but it will be accompanied by a minor
version bump, ensuring if you lock to a minor version MSRV will be preserved
for the default feature set.
## SemVer Policy
- All on-by-default features of this library are covered by SemVer
- MSRV is considered exempt from SemVer as noted above
- The `pkcs8` module is exempted as it uses a pre-1.0 dependency, however,
breaking changes to this module will be accompanied by a minor version bump.
## License
All crates licensed under either of
* [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
* [MIT license](http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.
[//]: # (badges)
[crate-image]: https://buildstats.info/crate/ed25519
[crate-link]: https://crates.io/crates/ed25519
[docs-image]: https://docs.rs/ed25519/badge.svg
[docs-link]: https://docs.rs/ed25519/
[build-image]: https://github.com/RustCrypto/signatures/actions/workflows/ed25519.yml/badge.svg
[build-link]: https://github.com/RustCrypto/signatures/actions/workflows/ed25519.yml
[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
[rustc-image]: https://img.shields.io/badge/rustc-1.60+-blue.svg
[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260048-signatures
[//]: # (links)
[RustCrypto]: https://github.com/RustCrypto
[//]: # (footnotes)
[1]: https://en.wikipedia.org/wiki/EdDSA#Ed25519
[2]: https://tools.ietf.org/html/rfc8032
[3]: https://docs.rs/ed25519/latest/ed25519/struct.Signature.html
[4]: https://docs.rs/signature/latest/signature/trait.Signer.html
[5]: https://docs.rs/signature/latest/signature/trait.Verifier.html

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//! Hexadecimal encoding support
// TODO(tarcieri): use `base16ct`?
use crate::{ComponentBytes, Error, Signature};
use core::{fmt, str};
/// Format a signature component as hex.
pub(crate) struct ComponentFormatter<'a>(pub(crate) &'a ComponentBytes);
impl fmt::Debug for ComponentFormatter<'_> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "0x")?;
for byte in self.0 {
write!(f, "{:02x}", byte)?;
}
Ok(())
}
}
impl fmt::LowerHex for Signature {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
for component in [&self.R, &self.s] {
for byte in component {
write!(f, "{:02x}", byte)?;
}
}
Ok(())
}
}
impl fmt::UpperHex for Signature {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
for component in [&self.R, &self.s] {
for byte in component {
write!(f, "{:02X}", byte)?;
}
}
Ok(())
}
}
/// Decode a signature from hexadecimal.
///
/// Upper and lower case hexadecimal are both accepted, however mixed case is
/// rejected.
// TODO(tarcieri): use `base16ct`?
impl str::FromStr for Signature {
type Err = Error;
fn from_str(hex: &str) -> signature::Result<Self> {
if hex.as_bytes().len() != Signature::BYTE_SIZE * 2 {
return Err(Error::new());
}
let mut upper_case = None;
// Ensure all characters are valid and case is not mixed
for &byte in hex.as_bytes() {
match byte {
b'0'..=b'9' => (),
b'a'..=b'z' => match upper_case {
Some(true) => return Err(Error::new()),
Some(false) => (),
None => upper_case = Some(false),
},
b'A'..=b'Z' => match upper_case {
Some(true) => (),
Some(false) => return Err(Error::new()),
None => upper_case = Some(true),
},
_ => return Err(Error::new()),
}
}
let mut result = [0u8; Self::BYTE_SIZE];
for (digit, byte) in hex.as_bytes().chunks_exact(2).zip(result.iter_mut()) {
*byte = str::from_utf8(digit)
.ok()
.and_then(|s| u8::from_str_radix(s, 16).ok())
.ok_or_else(Error::new)?;
}
Self::try_from(&result[..])
}
}

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#![no_std]
#![cfg_attr(docsrs, feature(doc_auto_cfg))]
#![doc = include_str!("../README.md")]
#![doc(html_logo_url = "https://raw.githubusercontent.com/RustCrypto/meta/master/logo_small.png")]
#![allow(non_snake_case)]
#![forbid(unsafe_code)]
#![warn(
clippy::unwrap_used,
missing_docs,
rust_2018_idioms,
unused_lifetimes,
unused_qualifications
)]
//! # Using Ed25519 generically over algorithm implementations/providers
//!
//! By using the `ed25519` crate, you can write code which signs and verifies
//! messages using the Ed25519 signature algorithm generically over any
//! supported Ed25519 implementation (see the next section for available
//! providers).
//!
//! This allows consumers of your code to plug in whatever implementation they
//! want to use without having to add all potential Ed25519 libraries you'd
//! like to support as optional dependencies.
//!
//! ## Example
//!
//! ```
//! use ed25519::signature::{Signer, Verifier};
//!
//! pub struct HelloSigner<S>
//! where
//! S: Signer<ed25519::Signature>
//! {
//! pub signing_key: S
//! }
//!
//! impl<S> HelloSigner<S>
//! where
//! S: Signer<ed25519::Signature>
//! {
//! pub fn sign(&self, person: &str) -> ed25519::Signature {
//! // NOTE: use `try_sign` if you'd like to be able to handle
//! // errors from external signing services/devices (e.g. HSM/KMS)
//! // <https://docs.rs/signature/latest/signature/trait.Signer.html#tymethod.try_sign>
//! self.signing_key.sign(format_message(person).as_bytes())
//! }
//! }
//!
//! pub struct HelloVerifier<V> {
//! pub verifying_key: V
//! }
//!
//! impl<V> HelloVerifier<V>
//! where
//! V: Verifier<ed25519::Signature>
//! {
//! pub fn verify(
//! &self,
//! person: &str,
//! signature: &ed25519::Signature
//! ) -> Result<(), ed25519::Error> {
//! self.verifying_key.verify(format_message(person).as_bytes(), signature)
//! }
//! }
//!
//! fn format_message(person: &str) -> String {
//! format!("Hello, {}!", person)
//! }
//! ```
//!
//! ## Using above example with `ed25519-dalek`
//!
//! The [`ed25519-dalek`] crate natively supports the [`ed25519::Signature`][`Signature`]
//! type defined in this crate along with the [`signature::Signer`] and
//! [`signature::Verifier`] traits.
//!
//! Below is an example of how a hypothetical consumer of the code above can
//! instantiate and use the previously defined `HelloSigner` and `HelloVerifier`
//! types with [`ed25519-dalek`] as the signing/verification provider:
//!
//! *NOTE: requires [`ed25519-dalek`] v2 or newer for compatibility with
//! `ed25519` v2.2+*.
//!
//! ```
//! use ed25519_dalek::{Signer, Verifier, Signature};
//! #
//! # pub struct HelloSigner<S>
//! # where
//! # S: Signer<Signature>
//! # {
//! # pub signing_key: S
//! # }
//! #
//! # impl<S> HelloSigner<S>
//! # where
//! # S: Signer<Signature>
//! # {
//! # pub fn sign(&self, person: &str) -> Signature {
//! # // NOTE: use `try_sign` if you'd like to be able to handle
//! # // errors from external signing services/devices (e.g. HSM/KMS)
//! # // <https://docs.rs/signature/latest/signature/trait.Signer.html#tymethod.try_sign>
//! # self.signing_key.sign(format_message(person).as_bytes())
//! # }
//! # }
//! #
//! # pub struct HelloVerifier<V> {
//! # pub verifying_key: V
//! # }
//! #
//! # impl<V> HelloVerifier<V>
//! # where
//! # V: Verifier<Signature>
//! # {
//! # pub fn verify(
//! # &self,
//! # person: &str,
//! # signature: &Signature
//! # ) -> Result<(), ed25519::Error> {
//! # self.verifying_key.verify(format_message(person).as_bytes(), signature)
//! # }
//! # }
//! #
//! # fn format_message(person: &str) -> String {
//! # format!("Hello, {}!", person)
//! # }
//! use rand_core::OsRng; // Requires the `std` feature of `rand_core`
//!
//! /// `HelloSigner` defined above instantiated with `ed25519-dalek` as
//! /// the signing provider.
//! pub type DalekHelloSigner = HelloSigner<ed25519_dalek::SigningKey>;
//!
//! let signing_key = ed25519_dalek::SigningKey::generate(&mut OsRng);
//! let signer = DalekHelloSigner { signing_key };
//! let person = "Joe"; // Message to sign
//! let signature = signer.sign(person);
//!
//! /// `HelloVerifier` defined above instantiated with `ed25519-dalek`
//! /// as the signature verification provider.
//! pub type DalekHelloVerifier = HelloVerifier<ed25519_dalek::VerifyingKey>;
//!
//! let verifying_key: ed25519_dalek::VerifyingKey = signer.signing_key.verifying_key();
//! let verifier = DalekHelloVerifier { verifying_key };
//! assert!(verifier.verify(person, &signature).is_ok());
//! ```
//!
//! ## Using above example with `ring-compat`
//!
//! The [`ring-compat`] crate provides wrappers for [*ring*] which implement
//! the [`signature::Signer`] and [`signature::Verifier`] traits for
//! [`ed25519::Signature`][`Signature`].
//!
//! Below is an example of how a hypothetical consumer of the code above can
//! instantiate and use the previously defined `HelloSigner` and `HelloVerifier`
//! types with [`ring-compat`] as the signing/verification provider:
//!
//! ```
//! use ring_compat::signature::{
//! ed25519::{Signature, SigningKey, VerifyingKey},
//! Signer, Verifier
//! };
//! #
//! # pub struct HelloSigner<S>
//! # where
//! # S: Signer<Signature>
//! # {
//! # pub signing_key: S
//! # }
//! #
//! # impl<S> HelloSigner<S>
//! # where
//! # S: Signer<Signature>
//! # {
//! # pub fn sign(&self, person: &str) -> Signature {
//! # // NOTE: use `try_sign` if you'd like to be able to handle
//! # // errors from external signing services/devices (e.g. HSM/KMS)
//! # // <https://docs.rs/signature/latest/signature/trait.Signer.html#tymethod.try_sign>
//! # self.signing_key.sign(format_message(person).as_bytes())
//! # }
//! # }
//! #
//! # pub struct HelloVerifier<V> {
//! # pub verifying_key: V
//! # }
//! #
//! # impl<V> HelloVerifier<V>
//! # where
//! # V: Verifier<Signature>
//! # {
//! # pub fn verify(
//! # &self,
//! # person: &str,
//! # signature: &Signature
//! # ) -> Result<(), ed25519::Error> {
//! # self.verifying_key.verify(format_message(person).as_bytes(), signature)
//! # }
//! # }
//! #
//! # fn format_message(person: &str) -> String {
//! # format!("Hello, {}!", person)
//! # }
//! use rand_core::{OsRng, RngCore}; // Requires the `std` feature of `rand_core`
//!
//! /// `HelloSigner` defined above instantiated with *ring* as
//! /// the signing provider.
//! pub type RingHelloSigner = HelloSigner<SigningKey>;
//!
//! let mut ed25519_seed = [0u8; 32];
//! OsRng.fill_bytes(&mut ed25519_seed);
//!
//! let signing_key = SigningKey::from_bytes(&ed25519_seed);
//! let verifying_key = signing_key.verifying_key();
//!
//! let signer = RingHelloSigner { signing_key };
//! let person = "Joe"; // Message to sign
//! let signature = signer.sign(person);
//!
//! /// `HelloVerifier` defined above instantiated with *ring*
//! /// as the signature verification provider.
//! pub type RingHelloVerifier = HelloVerifier<VerifyingKey>;
//!
//! let verifier = RingHelloVerifier { verifying_key };
//! assert!(verifier.verify(person, &signature).is_ok());
//! ```
//!
//! # Available Ed25519 providers
//!
//! The following libraries support the types/traits from the `ed25519` crate:
//!
//! - [`ed25519-dalek`] - mature pure Rust implementation of Ed25519
//! - [`ring-compat`] - compatibility wrapper for [*ring*]
//! - [`yubihsm`] - host-side client library for YubiHSM2 devices from Yubico
//!
//! [`ed25519-dalek`]: https://docs.rs/ed25519-dalek
//! [`ring-compat`]: https://docs.rs/ring-compat
//! [*ring*]: https://github.com/briansmith/ring
//! [`yubihsm`]: https://github.com/iqlusioninc/yubihsm.rs/blob/develop/README.md
//!
//! # Features
//!
//! The following features are presently supported:
//!
//! - `pkcs8`: support for decoding/encoding PKCS#8-formatted private keys using the
//! [`KeypairBytes`] type.
//! - `std` *(default)*: Enable `std` support in [`signature`], which currently only affects whether
//! [`signature::Error`] implements `std::error::Error`.
//! - `serde`: Implement `serde::Deserialize` and `serde::Serialize` for [`Signature`]. Signatures
//! are serialized as their bytes.
//! - `serde_bytes`: Implement `serde_bytes::Deserialize` and `serde_bytes::Serialize` for
//! [`Signature`]. This enables more compact representations for formats with an efficient byte
//! array representation. As per the `serde_bytes` documentation, this can most easily be realised
//! using the `#[serde(with = "serde_bytes")]` annotation, e.g.:
//!
//! ```ignore
//! # use ed25519::Signature;
//! # use serde::{Deserialize, Serialize};
//! #[derive(Deserialize, Serialize)]
//! #[serde(transparent)]
//! struct SignatureAsBytes(#[serde(with = "serde_bytes")] Signature);
//! ```
#[cfg(feature = "alloc")]
extern crate alloc;
mod hex;
#[cfg(feature = "pkcs8")]
pub mod pkcs8;
#[cfg(feature = "serde")]
mod serde;
pub use signature::{self, Error, SignatureEncoding};
#[cfg(feature = "pkcs8")]
pub use crate::pkcs8::{KeypairBytes, PublicKeyBytes};
use core::fmt;
#[cfg(feature = "alloc")]
use alloc::vec::Vec;
/// Size of a single component of an Ed25519 signature.
const COMPONENT_SIZE: usize = 32;
/// Size of an `R` or `s` component of an Ed25519 signature when serialized
/// as bytes.
pub type ComponentBytes = [u8; COMPONENT_SIZE];
/// Ed25519 signature serialized as a byte array.
pub type SignatureBytes = [u8; Signature::BYTE_SIZE];
/// Ed25519 signature.
///
/// This type represents a container for the byte serialization of an Ed25519
/// signature, and does not necessarily represent well-formed field or curve
/// elements.
///
/// Signature verification libraries are expected to reject invalid field
/// elements at the time a signature is verified.
#[derive(Copy, Clone, Eq, PartialEq)]
#[repr(C)]
pub struct Signature {
R: ComponentBytes,
s: ComponentBytes,
}
impl Signature {
/// Size of an encoded Ed25519 signature in bytes.
pub const BYTE_SIZE: usize = COMPONENT_SIZE * 2;
/// Parse an Ed25519 signature from a byte slice.
pub fn from_bytes(bytes: &SignatureBytes) -> Self {
let mut R = ComponentBytes::default();
let mut s = ComponentBytes::default();
let components = bytes.split_at(COMPONENT_SIZE);
R.copy_from_slice(components.0);
s.copy_from_slice(components.1);
Self { R, s }
}
/// Parse an Ed25519 signature from its `R` and `s` components.
pub fn from_components(R: ComponentBytes, s: ComponentBytes) -> Self {
Self { R, s }
}
/// Parse an Ed25519 signature from a byte slice.
///
/// # Returns
/// - `Ok` on success
/// - `Err` if the input byte slice is not 64-bytes
pub fn from_slice(bytes: &[u8]) -> signature::Result<Self> {
SignatureBytes::try_from(bytes)
.map(Into::into)
.map_err(|_| Error::new())
}
/// Bytes for the `R` component of a signature.
pub fn r_bytes(&self) -> &ComponentBytes {
&self.R
}
/// Bytes for the `s` component of a signature.
pub fn s_bytes(&self) -> &ComponentBytes {
&self.s
}
/// Return the inner byte array.
pub fn to_bytes(&self) -> SignatureBytes {
let mut ret = [0u8; Self::BYTE_SIZE];
let (R, s) = ret.split_at_mut(COMPONENT_SIZE);
R.copy_from_slice(&self.R);
s.copy_from_slice(&self.s);
ret
}
/// Convert this signature into a byte vector.
#[cfg(feature = "alloc")]
pub fn to_vec(&self) -> Vec<u8> {
self.to_bytes().to_vec()
}
}
impl SignatureEncoding for Signature {
type Repr = SignatureBytes;
fn to_bytes(&self) -> SignatureBytes {
self.to_bytes()
}
}
impl From<Signature> for SignatureBytes {
fn from(sig: Signature) -> SignatureBytes {
sig.to_bytes()
}
}
impl From<&Signature> for SignatureBytes {
fn from(sig: &Signature) -> SignatureBytes {
sig.to_bytes()
}
}
impl From<SignatureBytes> for Signature {
fn from(bytes: SignatureBytes) -> Self {
Signature::from_bytes(&bytes)
}
}
impl From<&SignatureBytes> for Signature {
fn from(bytes: &SignatureBytes) -> Self {
Signature::from_bytes(bytes)
}
}
impl TryFrom<&[u8]> for Signature {
type Error = Error;
fn try_from(bytes: &[u8]) -> signature::Result<Self> {
Self::from_slice(bytes)
}
}
impl fmt::Debug for Signature {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("ed25519::Signature")
.field("R", &hex::ComponentFormatter(self.r_bytes()))
.field("s", &hex::ComponentFormatter(self.s_bytes()))
.finish()
}
}
impl fmt::Display for Signature {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{:X}", self)
}
}

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//! PKCS#8 private key support.
//!
//! Implements Ed25519 PKCS#8 private keys as described in RFC8410 Section 7:
//! <https://datatracker.ietf.org/doc/html/rfc8410#section-7>
//!
//! ## SemVer Notes
//!
//! The `pkcs8` module of this crate is exempted from SemVer as it uses a
//! pre-1.0 dependency (the `pkcs8` crate).
//!
//! However, breaking changes to this module will be accompanied by a minor
//! version bump.
//!
//! Please lock to a specific minor version of the `ed25519` crate to avoid
//! breaking changes when using this module.
pub use pkcs8::{
spki, DecodePrivateKey, DecodePublicKey, Error, ObjectIdentifier, PrivateKeyInfo, Result,
};
#[cfg(feature = "alloc")]
pub use pkcs8::{spki::EncodePublicKey, EncodePrivateKey};
#[cfg(feature = "alloc")]
pub use pkcs8::der::{asn1::BitStringRef, Document, SecretDocument};
use core::fmt;
#[cfg(feature = "pem")]
use {
alloc::string::{String, ToString},
core::str,
};
#[cfg(feature = "zeroize")]
use zeroize::Zeroize;
/// Algorithm [`ObjectIdentifier`] for the Ed25519 digital signature algorithm
/// (`id-Ed25519`).
///
/// <http://oid-info.com/get/1.3.101.112>
pub const ALGORITHM_OID: ObjectIdentifier = ObjectIdentifier::new_unwrap("1.3.101.112");
/// Ed25519 Algorithm Identifier.
pub const ALGORITHM_ID: pkcs8::AlgorithmIdentifierRef<'static> = pkcs8::AlgorithmIdentifierRef {
oid: ALGORITHM_OID,
parameters: None,
};
/// Ed25519 keypair serialized as bytes.
///
/// This type is primarily useful for decoding/encoding PKCS#8 private key
/// files (either DER or PEM) encoded using the following traits:
///
/// - [`DecodePrivateKey`]: decode DER or PEM encoded PKCS#8 private key.
/// - [`EncodePrivateKey`]: encode DER or PEM encoded PKCS#8 private key.
///
/// PKCS#8 private key files encoded with PEM begin with:
///
/// ```text
/// -----BEGIN PRIVATE KEY-----
/// ```
///
/// Note that this type operates on raw bytes and performs no validation that
/// keys represent valid Ed25519 field elements.
pub struct KeypairBytes {
/// Ed25519 secret key.
///
/// Little endian serialization of an element of the Curve25519 scalar
/// field, prior to "clamping" (i.e. setting/clearing bits to ensure the
/// scalar is actually a valid field element)
pub secret_key: [u8; Self::BYTE_SIZE / 2],
/// Ed25519 public key (if available).
///
/// Compressed Edwards-y encoded curve point.
pub public_key: Option<PublicKeyBytes>,
}
impl KeypairBytes {
/// Size of an Ed25519 keypair when serialized as bytes.
const BYTE_SIZE: usize = 64;
/// Parse raw keypair from a 64-byte input.
pub fn from_bytes(bytes: &[u8; Self::BYTE_SIZE]) -> Self {
let (sk, pk) = bytes.split_at(Self::BYTE_SIZE / 2);
Self {
secret_key: sk.try_into().expect("secret key size error"),
public_key: Some(PublicKeyBytes(
pk.try_into().expect("public key size error"),
)),
}
}
/// Serialize as a 64-byte keypair.
///
/// # Returns
///
/// - `Some(bytes)` if the `public_key` is present.
/// - `None` if the `public_key` is absent (i.e. `None`).
pub fn to_bytes(&self) -> Option<[u8; Self::BYTE_SIZE]> {
if let Some(public_key) = &self.public_key {
let mut result = [0u8; Self::BYTE_SIZE];
let (sk, pk) = result.split_at_mut(Self::BYTE_SIZE / 2);
sk.copy_from_slice(&self.secret_key);
pk.copy_from_slice(public_key.as_ref());
Some(result)
} else {
None
}
}
}
impl Drop for KeypairBytes {
fn drop(&mut self) {
#[cfg(feature = "zeroize")]
self.secret_key.zeroize()
}
}
#[cfg(feature = "alloc")]
impl EncodePrivateKey for KeypairBytes {
fn to_pkcs8_der(&self) -> Result<SecretDocument> {
// Serialize private key as nested OCTET STRING
let mut private_key = [0u8; 2 + (Self::BYTE_SIZE / 2)];
private_key[0] = 0x04;
private_key[1] = 0x20;
private_key[2..].copy_from_slice(&self.secret_key);
let private_key_info = PrivateKeyInfo {
algorithm: ALGORITHM_ID,
private_key: &private_key,
public_key: self.public_key.as_ref().map(|pk| pk.0.as_slice()),
};
let result = SecretDocument::encode_msg(&private_key_info)?;
#[cfg(feature = "zeroize")]
private_key.zeroize();
Ok(result)
}
}
impl TryFrom<PrivateKeyInfo<'_>> for KeypairBytes {
type Error = Error;
fn try_from(private_key: PrivateKeyInfo<'_>) -> Result<Self> {
private_key.algorithm.assert_algorithm_oid(ALGORITHM_OID)?;
if private_key.algorithm.parameters.is_some() {
return Err(Error::ParametersMalformed);
}
// Ed25519 PKCS#8 keys are represented as a nested OCTET STRING
// (i.e. an OCTET STRING within an OCTET STRING).
//
// This match statement checks and removes the inner OCTET STRING
// header value:
//
// - 0x04: OCTET STRING tag
// - 0x20: 32-byte length
let secret_key = match private_key.private_key {
[0x04, 0x20, rest @ ..] => rest.try_into().map_err(|_| Error::KeyMalformed),
_ => Err(Error::KeyMalformed),
}?;
let public_key = private_key
.public_key
.map(|bytes| bytes.try_into().map_err(|_| Error::KeyMalformed))
.transpose()?
.map(PublicKeyBytes);
Ok(Self {
secret_key,
public_key,
})
}
}
impl TryFrom<&[u8]> for KeypairBytes {
type Error = Error;
fn try_from(der_bytes: &[u8]) -> Result<Self> {
Self::from_pkcs8_der(der_bytes)
}
}
impl fmt::Debug for KeypairBytes {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("KeypairBytes")
.field("public_key", &self.public_key)
.finish_non_exhaustive()
}
}
#[cfg(feature = "pem")]
impl str::FromStr for KeypairBytes {
type Err = Error;
fn from_str(pem: &str) -> Result<Self> {
Self::from_pkcs8_pem(pem)
}
}
/// Ed25519 public key serialized as bytes.
///
/// This type is primarily useful for decoding/encoding SPKI public key
/// files (either DER or PEM) encoded using the following traits:
///
/// - [`DecodePublicKey`]: decode DER or PEM encoded PKCS#8 private key.
/// - [`EncodePublicKey`]: encode DER or PEM encoded PKCS#8 private key.
///
/// SPKI public key files encoded with PEM begin with:
///
/// ```text
/// -----BEGIN PUBLIC KEY-----
/// ```
///
/// Note that this type operates on raw bytes and performs no validation that
/// public keys represent valid compressed Ed25519 y-coordinates.
#[derive(Clone, Copy, Eq, PartialEq)]
pub struct PublicKeyBytes(pub [u8; Self::BYTE_SIZE]);
impl PublicKeyBytes {
/// Size of an Ed25519 public key when serialized as bytes.
const BYTE_SIZE: usize = 32;
/// Returns the raw bytes of the public key.
pub fn to_bytes(&self) -> [u8; Self::BYTE_SIZE] {
self.0
}
}
impl AsRef<[u8; Self::BYTE_SIZE]> for PublicKeyBytes {
fn as_ref(&self) -> &[u8; Self::BYTE_SIZE] {
&self.0
}
}
#[cfg(feature = "alloc")]
impl EncodePublicKey for PublicKeyBytes {
fn to_public_key_der(&self) -> spki::Result<Document> {
pkcs8::SubjectPublicKeyInfoRef {
algorithm: ALGORITHM_ID,
subject_public_key: BitStringRef::new(0, &self.0)?,
}
.try_into()
}
}
impl TryFrom<spki::SubjectPublicKeyInfoRef<'_>> for PublicKeyBytes {
type Error = spki::Error;
fn try_from(spki: spki::SubjectPublicKeyInfoRef<'_>) -> spki::Result<Self> {
spki.algorithm.assert_algorithm_oid(ALGORITHM_OID)?;
if spki.algorithm.parameters.is_some() {
return Err(spki::Error::KeyMalformed);
}
spki.subject_public_key
.as_bytes()
.ok_or(spki::Error::KeyMalformed)?
.try_into()
.map(Self)
.map_err(|_| spki::Error::KeyMalformed)
}
}
impl TryFrom<&[u8]> for PublicKeyBytes {
type Error = spki::Error;
fn try_from(der_bytes: &[u8]) -> spki::Result<Self> {
Self::from_public_key_der(der_bytes)
}
}
impl TryFrom<KeypairBytes> for PublicKeyBytes {
type Error = spki::Error;
fn try_from(keypair: KeypairBytes) -> spki::Result<PublicKeyBytes> {
PublicKeyBytes::try_from(&keypair)
}
}
impl TryFrom<&KeypairBytes> for PublicKeyBytes {
type Error = spki::Error;
fn try_from(keypair: &KeypairBytes) -> spki::Result<PublicKeyBytes> {
keypair.public_key.ok_or(spki::Error::KeyMalformed)
}
}
impl fmt::Debug for PublicKeyBytes {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("PublicKeyBytes(")?;
for &byte in self.as_ref() {
write!(f, "{:02X}", byte)?;
}
f.write_str(")")
}
}
#[cfg(feature = "pem")]
impl str::FromStr for PublicKeyBytes {
type Err = spki::Error;
fn from_str(pem: &str) -> spki::Result<Self> {
Self::from_public_key_pem(pem)
}
}
#[cfg(feature = "pem")]
impl ToString for PublicKeyBytes {
fn to_string(&self) -> String {
self.to_public_key_pem(Default::default())
.expect("PEM serialization error")
}
}
#[cfg(feature = "pem")]
#[cfg(test)]
mod tests {
use super::{KeypairBytes, PublicKeyBytes};
use hex_literal::hex;
const SECRET_KEY_BYTES: [u8; 32] =
hex!("D4EE72DBF913584AD5B6D8F1F769F8AD3AFE7C28CBF1D4FBE097A88F44755842");
const PUBLIC_KEY_BYTES: [u8; 32] =
hex!("19BF44096984CDFE8541BAC167DC3B96C85086AA30B6B6CB0C5C38AD703166E1");
#[test]
fn to_bytes() {
let valid_keypair = KeypairBytes {
secret_key: SECRET_KEY_BYTES,
public_key: Some(PublicKeyBytes(PUBLIC_KEY_BYTES)),
};
assert_eq!(
valid_keypair.to_bytes().unwrap(),
hex!("D4EE72DBF913584AD5B6D8F1F769F8AD3AFE7C28CBF1D4FBE097A88F4475584219BF44096984CDFE8541BAC167DC3B96C85086AA30B6B6CB0C5C38AD703166E1")
);
let invalid_keypair = KeypairBytes {
secret_key: SECRET_KEY_BYTES,
public_key: None,
};
assert_eq!(invalid_keypair.to_bytes(), None);
}
}

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//! `serde` support.
use crate::{Signature, SignatureBytes};
use ::serde::{de, ser, Deserialize, Serialize};
use core::fmt;
impl Serialize for Signature {
fn serialize<S: ser::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
use ser::SerializeTuple;
let mut seq = serializer.serialize_tuple(Signature::BYTE_SIZE)?;
for byte in self.to_bytes() {
seq.serialize_element(&byte)?;
}
seq.end()
}
}
// serde lacks support for deserializing arrays larger than 32-bytes
// see: <https://github.com/serde-rs/serde/issues/631>
impl<'de> Deserialize<'de> for Signature {
fn deserialize<D: de::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
struct ByteArrayVisitor;
impl<'de> de::Visitor<'de> for ByteArrayVisitor {
type Value = [u8; Signature::BYTE_SIZE];
fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
formatter.write_str("bytestring of length 64")
}
fn visit_seq<A>(self, mut seq: A) -> Result<[u8; Signature::BYTE_SIZE], A::Error>
where
A: de::SeqAccess<'de>,
{
use de::Error;
let mut arr = [0u8; Signature::BYTE_SIZE];
for (i, byte) in arr.iter_mut().enumerate() {
*byte = seq
.next_element()?
.ok_or_else(|| Error::invalid_length(i, &self))?;
}
Ok(arr)
}
}
deserializer
.deserialize_tuple(Signature::BYTE_SIZE, ByteArrayVisitor)
.map(Into::into)
}
}
#[cfg(feature = "serde_bytes")]
impl serde_bytes::Serialize for Signature {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
serializer.serialize_bytes(&self.to_bytes())
}
}
#[cfg(feature = "serde_bytes")]
impl<'de> serde_bytes::Deserialize<'de> for Signature {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: de::Deserializer<'de>,
{
struct ByteArrayVisitor;
impl<'de> de::Visitor<'de> for ByteArrayVisitor {
type Value = SignatureBytes;
fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
formatter.write_str("bytestring of length 64")
}
fn visit_bytes<E>(self, bytes: &[u8]) -> Result<Self::Value, E>
where
E: de::Error,
{
use de::Error;
bytes
.try_into()
.map_err(|_| Error::invalid_length(bytes.len(), &self))
}
}
deserializer
.deserialize_bytes(ByteArrayVisitor)
.map(Into::into)
}
}
#[cfg(test)]
mod tests {
use crate::{Signature, SignatureBytes};
use hex_literal::hex;
const SIGNATURE_BYTES: SignatureBytes = hex!(
"
e5564300c360ac729086e2cc806e828a
84877f1eb8e5d974d873e06522490155
5fb8821590a33bacc61e39701cf9b46b
d25bf5f0595bbe24655141438e7a100b
"
);
#[test]
fn round_trip() {
let signature = Signature::from_bytes(&SIGNATURE_BYTES);
let serialized = bincode::serialize(&signature).unwrap();
let deserialized = bincode::deserialize(&serialized).unwrap();
assert_eq!(signature, deserialized);
}
}

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{"name":"ed25519","vers":"2.2.3","deps":[{"name":"pkcs8","req":"^0.10","features":[],"optional":true,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"serde","req":"^1","features":[],"optional":true,"default_features":false,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"serde_bytes","req":"^0.11","features":[],"optional":true,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"signature","req":"^2","features":[],"optional":false,"default_features":false,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"zeroize","req":"^1","features":[],"optional":true,"default_features":false,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"bincode","req":"^1","features":[],"optional":false,"default_features":true,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"ed25519-dalek","req":"^2","features":["rand_core"],"optional":false,"default_features":true,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"hex-literal","req":"^0.4","features":[],"optional":false,"default_features":true,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"rand_core","req":"^0.6","features":["std"],"optional":false,"default_features":true,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"ring-compat","req":"^0.8","features":["signature"],"optional":false,"default_features":false,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false}],"features":{"alloc":["pkcs8?/alloc"],"default":["std"],"pem":["alloc","pkcs8/pem"],"serde_bytes":["serde","dep:serde_bytes"],"std":["pkcs8?/std","signature/std"]},"features2":null,"cksum":"5e3c97967ac336c86e87195c5a12018e4ee86a8fbb884f2ca423e1e63e032073","yanked":null,"links":null,"rust_version":null,"v":2}

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-----BEGIN PRIVATE KEY-----
MC4CAQAwBQYDK2VwBCIEINTuctv5E1hK1bbY8fdp+K06/nwoy/HU++CXqI9EdVhC
-----END PRIVATE KEY-----

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-----BEGIN PRIVATE KEY-----
MHICAQEwBQYDK2VwBCIEINTuctv5E1hK1bbY8fdp+K06/nwoy/HU++CXqI9EdVhC
oB8wHQYKKoZIhvcNAQkJFDEPDA1DdXJkbGUgQ2hhaXJzgSEAGb9ECWmEzf6FQbrB
Z9w7lshQhqowtrbLDFw4rXAxZuE=
-----END PRIVATE KEY------

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-----BEGIN PUBLIC KEY-----
MCowBQYDK2VwAyEAGb9ECWmEzf6FQbrBZ9w7lshQhqowtrbLDFw4rXAxZuE=
-----END PUBLIC KEY-----

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//! Hexadecimal display/serialization tests.
use ed25519::Signature;
use hex_literal::hex;
use std::str::FromStr;
/// Test 1 signature from RFC 8032 § 7.1
/// <https://datatracker.ietf.org/doc/html/rfc8032#section-7.1>
const TEST_1_SIGNATURE: [u8; Signature::BYTE_SIZE] = hex!(
"e5564300c360ac729086e2cc806e828a
84877f1eb8e5d974d873e06522490155
5fb8821590a33bacc61e39701cf9b46b
d25bf5f0595bbe24655141438e7a100b"
);
#[test]
fn display() {
let sig = Signature::from_bytes(&TEST_1_SIGNATURE);
assert_eq!(sig.to_string(), "E5564300C360AC729086E2CC806E828A84877F1EB8E5D974D873E065224901555FB8821590A33BACC61E39701CF9B46BD25BF5F0595BBE24655141438E7A100B")
}
#[test]
fn lower_hex() {
let sig = Signature::from_bytes(&TEST_1_SIGNATURE);
assert_eq!(format!("{:x}", sig), "e5564300c360ac729086e2cc806e828a84877f1eb8e5d974d873e065224901555fb8821590a33bacc61e39701cf9b46bd25bf5f0595bbe24655141438e7a100b")
}
#[test]
fn upper_hex() {
let sig = Signature::from_bytes(&TEST_1_SIGNATURE);
assert_eq!(format!("{:X}", sig), "E5564300C360AC729086E2CC806E828A84877F1EB8E5D974D873E065224901555FB8821590A33BACC61E39701CF9B46BD25BF5F0595BBE24655141438E7A100B")
}
#[test]
fn from_str_lower() {
let sig = Signature::from_str("e5564300c360ac729086e2cc806e828a84877f1eb8e5d974d873e065224901555fb8821590a33bacc61e39701cf9b46bd25bf5f0595bbe24655141438e7a100b").unwrap();
assert_eq!(sig.to_bytes(), TEST_1_SIGNATURE);
}
#[test]
fn from_str_upper() {
let sig = Signature::from_str("E5564300C360AC729086E2CC806E828A84877F1EB8E5D974D873E065224901555FB8821590A33BACC61E39701CF9B46BD25BF5F0595BBE24655141438E7A100B").unwrap();
assert_eq!(sig.to_bytes(), TEST_1_SIGNATURE);
}
#[test]
fn from_str_rejects_mixed_case() {
let result = Signature::from_str("E5564300c360ac729086e2cc806e828a84877f1eb8e5d974d873e065224901555fb8821590a33bacc61e39701cf9b46bd25bf5f0595bbe24655141438e7a100b");
assert!(result.is_err());
}

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//! PKCS#8 private key tests
#![cfg(feature = "pkcs8")]
use ed25519::pkcs8::{DecodePrivateKey, DecodePublicKey, KeypairBytes, PublicKeyBytes};
use hex_literal::hex;
#[cfg(feature = "alloc")]
use ed25519::pkcs8::{EncodePrivateKey, EncodePublicKey};
/// Ed25519 PKCS#8 v1 private key encoded as ASN.1 DER.
const PKCS8_V1_DER: &[u8] = include_bytes!("examples/pkcs8-v1.der");
/// Ed25519 PKCS#8 v2 private key + public key encoded as ASN.1 DER.
const PKCS8_V2_DER: &[u8] = include_bytes!("examples/pkcs8-v2.der");
/// Ed25519 SubjectPublicKeyInfo encoded as ASN.1 DER.
const PUBLIC_KEY_DER: &[u8] = include_bytes!("examples/pubkey.der");
#[test]
fn decode_pkcs8_v1() {
let keypair = KeypairBytes::from_pkcs8_der(PKCS8_V1_DER).unwrap();
// Extracted with:
// $ openssl asn1parse -inform der -in tests/examples/pkcs8-v1.der
assert_eq!(
keypair.secret_key,
&hex!("D4EE72DBF913584AD5B6D8F1F769F8AD3AFE7C28CBF1D4FBE097A88F44755842")[..]
);
assert_eq!(keypair.public_key, None);
}
#[test]
fn decode_pkcs8_v2() {
let keypair = KeypairBytes::from_pkcs8_der(PKCS8_V2_DER).unwrap();
// Extracted with:
// $ openssl asn1parse -inform der -in tests/examples/pkcs8-v2.der
assert_eq!(
keypair.secret_key,
&hex!("D4EE72DBF913584AD5B6D8F1F769F8AD3AFE7C28CBF1D4FBE097A88F44755842")[..]
);
assert_eq!(
keypair.public_key.unwrap().0,
hex!("19BF44096984CDFE8541BAC167DC3B96C85086AA30B6B6CB0C5C38AD703166E1")
);
}
#[test]
fn decode_public_key() {
let public_key = PublicKeyBytes::from_public_key_der(PUBLIC_KEY_DER).unwrap();
// Extracted with:
// $ openssl pkey -inform der -in tests/examples/pkcs8-v1.der -pubout -text
assert_eq!(
public_key.as_ref(),
&hex!("19BF44096984CDFE8541BAC167DC3B96C85086AA30B6B6CB0C5C38AD703166E1")
);
}
#[cfg(feature = "alloc")]
#[test]
fn encode_pkcs8_v1() {
let pk = KeypairBytes::from_pkcs8_der(PKCS8_V1_DER).unwrap();
let pk_der = pk.to_pkcs8_der().unwrap();
assert_eq!(pk_der.as_bytes(), PKCS8_V1_DER);
}
#[cfg(feature = "alloc")]
#[test]
fn encode_pkcs8_v2() {
let pk = KeypairBytes::from_pkcs8_der(PKCS8_V2_DER).unwrap();
let pk2 = KeypairBytes::from_pkcs8_der(pk.to_pkcs8_der().unwrap().as_bytes()).unwrap();
assert_eq!(pk.secret_key, pk2.secret_key);
assert_eq!(pk.public_key, pk2.public_key);
}
#[cfg(feature = "alloc")]
#[test]
fn encode_public_key() {
let pk = PublicKeyBytes::from_public_key_der(PUBLIC_KEY_DER).unwrap();
let pk_der = pk.to_public_key_der().unwrap();
assert_eq!(pk_der.as_ref(), PUBLIC_KEY_DER);
}

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//! Tests for serde serializers/deserializers
#![cfg(feature = "serde")]
use ed25519::{Signature, SignatureBytes};
use hex_literal::hex;
const EXAMPLE_SIGNATURE: SignatureBytes = hex!(
"3f3e3d3c3b3a393837363534333231302f2e2d2c2b2a29282726252423222120"
"1f1e1d1c1b1a191817161514131211100f0e0d0c0b0a09080706050403020100"
);
#[test]
fn test_serialize() {
let signature = Signature::try_from(&EXAMPLE_SIGNATURE[..]).unwrap();
dbg!(&signature);
let encoded_signature: Vec<u8> = bincode::serialize(&signature).unwrap();
assert_eq!(&EXAMPLE_SIGNATURE[..], &encoded_signature[..]);
}
#[test]
fn test_deserialize() {
let signature = bincode::deserialize::<Signature>(&EXAMPLE_SIGNATURE).unwrap();
assert_eq!(EXAMPLE_SIGNATURE, signature.to_bytes());
}
#[cfg(feature = "serde_bytes")]
#[test]
fn test_serialize_bytes() {
use bincode::Options;
let signature = Signature::try_from(&EXAMPLE_SIGNATURE[..]).unwrap();
let mut encoded_signature = Vec::new();
let options = bincode::DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes();
let mut serializer = bincode::Serializer::new(&mut encoded_signature, options);
serde_bytes::serialize(&signature, &mut serializer).unwrap();
let mut expected = Vec::from(Signature::BYTE_SIZE.to_le_bytes());
expected.extend(&EXAMPLE_SIGNATURE[..]);
assert_eq!(&expected[..], &encoded_signature[..]);
}
#[cfg(feature = "serde_bytes")]
#[test]
fn test_deserialize_bytes() {
use bincode::Options;
let mut encoded_signature = Vec::from(Signature::BYTE_SIZE.to_le_bytes());
encoded_signature.extend(&EXAMPLE_SIGNATURE[..]);
let options = bincode::DefaultOptions::new()
.with_fixint_encoding()
.allow_trailing_bytes();
let mut deserializer = bincode::de::Deserializer::from_slice(&encoded_signature[..], options);
let signature: Signature = serde_bytes::deserialize(&mut deserializer).unwrap();
assert_eq!(EXAMPLE_SIGNATURE, signature.to_bytes());
}