Compare commits
13 Commits
zer0x64-ma
...
master
| Author | SHA1 | Date |
|---|---|---|
 Ryan Heywood
|
fc517a8047
|
|
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Ryan Heywood
|
64315676f8
|
|
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Ryan Heywood
|
4faab1cd33
|
|
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Ryan Heywood
|
f10fef2c88
|
|
|
Ryan Heywood
|
de314fed2c
|
|
Aitor Ruano
|
e7e23ba899 | |
Garrett T
|
775333fe17 | |
|
Garrett T
|
1f86cadf23 | |
|
Aitor Ruano
|
b1e7a5b1e1 | |
Benoît C
|
5505a0c42c | |
|
Aitor Ruano
|
af4f469da9 | |
DCsunset
|
69428361ba | |
zer0x64
|
5b798ab016 |
|
|
@ -18,7 +18,7 @@ jobs:
|
|||
command: check
|
||||
|
||||
test-std:
|
||||
name: Test
|
||||
name: Test std
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- uses: actions/checkout@v2
|
||||
|
|
@ -32,7 +32,7 @@ jobs:
|
|||
command: test
|
||||
|
||||
test-nostd:
|
||||
name: Test
|
||||
name: Test no-std
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- uses: actions/checkout@v2
|
||||
|
|
|
|||
21
CHANGELOG.md
21
CHANGELOG.md
|
|
@ -4,6 +4,27 @@ 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).
|
||||
|
||||
## [0.6.0] - 2024-11-16
|
||||
### Changed
|
||||
- Rename project to `blahaj` following soft-fork
|
||||
- Use `u8::MAX` instead of deprecated `u8::max_value()`
|
||||
- Upgraded project dependencies
|
||||
|
||||
### Fixed
|
||||
- Lower bound of polynomial coefficients changed from 1 to 0
|
||||
|
||||
## [0.5.0] - 2021-03-14
|
||||
### Added
|
||||
- Zeroize memory on drop for generated secret shares
|
||||
|
||||
## [0.4.3] - 2021-02-04
|
||||
### Changed
|
||||
- Upgraded project dependencies
|
||||
|
||||
## [0.4.2] - 2020-08-03
|
||||
### Fixed
|
||||
- Small fix in docs
|
||||
|
||||
## [0.4.1] - 2020-04-23
|
||||
### Added
|
||||
- Fuzz tests
|
||||
|
|
|
|||
13
COPYRIGHT
13
COPYRIGHT
|
|
@ -1,12 +1,11 @@
|
|||
Copyrights in the Sharks project are retained by their contributors. No
|
||||
copyright assignment is required to contribute to the Sharks project.
|
||||
Copyrights in the Blahaj project are retained by their contributors. No
|
||||
copyright assignment is required to contribute to the Blahaj project.
|
||||
|
||||
For full authorship information, see the version control history.
|
||||
|
||||
Except as otherwise noted (below and/or in individual files), Sharks is
|
||||
licensed under the Apache License, Version 2.0 <LICENSE-APACHE> or
|
||||
<http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||||
<LICENSE-MIT> or <http://opensource.org/licenses/MIT>, at your option.
|
||||
licensed under the MIT license <LICENSE-MIT> or
|
||||
<http://opensource.org/licenses/MIT>.
|
||||
|
||||
The Sharks project includes code from the Rust project
|
||||
published under these same licenses.
|
||||
The Blahaj project includes code from the Rust project published under these
|
||||
same licenses.
|
||||
|
|
|
|||
37
Cargo.toml
37
Cargo.toml
|
|
@ -1,34 +1,31 @@
|
|||
[package]
|
||||
name = "sharks"
|
||||
version = "0.4.1"
|
||||
authors = ["Aitor Ruano <codearm@pm.me>"]
|
||||
description = "Fast, small and secure Shamir's Secret Sharing library crate"
|
||||
homepage = "https://github.com/c0dearm/sharks"
|
||||
repository = "https://github.com/c0dearm/sharks"
|
||||
name = "blahaj"
|
||||
version = "0.6.0"
|
||||
authors = ["Ryan Heywood <ryan@distrust.co>"]
|
||||
description = "Fast, small, and secure Shamir's Secret Sharing"
|
||||
homepage = "https://git.distrust.co/public/blahaj"
|
||||
repository = "https://git.distrust.co/public/blahaj"
|
||||
readme = "README.md"
|
||||
keywords = ["shamir", "secret", "sharing", "share", "crypto"]
|
||||
keywords = ["shamir", "secret", "sharing", "share", "cryptography"]
|
||||
categories = ["algorithms", "cryptography", "mathematics"]
|
||||
license = "MIT/Apache-2.0"
|
||||
edition = "2018"
|
||||
license = "MIT"
|
||||
edition = "2021"
|
||||
|
||||
[badges]
|
||||
maintenance = { status = "actively-developed" }
|
||||
codecov = { repository = "c0dearm/sharks" }
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
[features]
|
||||
default = ["std"]
|
||||
std = ["rand/std"]
|
||||
default = ["std", "zeroize_memory"]
|
||||
std = ["rand/std", "rand/std_rng"]
|
||||
fuzzing = ["std", "arbitrary"]
|
||||
zeroize_memory = ["zeroize"]
|
||||
|
||||
[dependencies]
|
||||
rand = { version = "0.7", default-features = false }
|
||||
hashbrown = "0.7"
|
||||
arbitrary = {version = "0.4.2", features = ["derive"], optional = true}
|
||||
rand = { version = "0.8", default-features = false }
|
||||
hashbrown = "0.15"
|
||||
arbitrary = { version = "0.4.7", features = ["derive"], optional = true }
|
||||
zeroize = { version = "1.2.0", features = ["zeroize_derive"], optional = true }
|
||||
|
||||
[dev-dependencies]
|
||||
criterion = "0.3"
|
||||
rand_chacha = "0.2"
|
||||
rand_chacha = "0.3"
|
||||
|
||||
[[bench]]
|
||||
name = "benchmarks"
|
||||
|
|
|
|||
201
LICENSE-APACHE
201
LICENSE-APACHE
|
|
@ -1,201 +0,0 @@
|
|||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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APPENDIX: How to apply the Apache License to your work.
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Copyright 2020 Aitor Ruano Miralles
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31
README.md
31
README.md
|
|
@ -1,15 +1,12 @@
|
|||
# Sharks
|
||||
# Blahaj
|
||||
|
||||
[](https://github.com/c0dearm/sharks/actions)
|
||||
[](https://crates.io/crates/sharks)
|
||||
[](https://docs.rs/sharks)
|
||||
[](https://codecov.io/gh/c0dearm/sharks)
|
||||
[](https://github.com/c0dearm/sharks/blob/master/COPYRIGHT)
|
||||
[](https://crates.io/crates/blahaj)
|
||||
[](https://docs.rs/blahaj)
|
||||
|
||||
Fast, small and secure [Shamir's Secret Sharing](https://en.wikipedia.org/wiki/Shamir%27s_Secret_Sharing) library crate
|
||||
|
||||
Documentation:
|
||||
- [API reference (docs.rs)](https://docs.rs/sharks)
|
||||
- [API reference (docs.rs)](https://docs.rs/blahaj)
|
||||
|
||||
## Usage
|
||||
|
||||
|
|
@ -17,17 +14,17 @@ Add this to your `Cargo.toml`:
|
|||
|
||||
```toml
|
||||
[dependencies]
|
||||
sharks = "0.4"
|
||||
blahaj = "0.6"
|
||||
```
|
||||
|
||||
If your environment doesn't support `std`:
|
||||
|
||||
```toml
|
||||
[dependencies]
|
||||
sharks = { version = "0.4", default-features = false }
|
||||
blahaj = { version = "0.6", default-features = false }
|
||||
```
|
||||
|
||||
To get started using Sharks, see the [Rust docs](https://docs.rs/sharks)
|
||||
To get started using Blahaj, see the [Rust docs](https://docs.rs/blahaj)
|
||||
|
||||
## Features
|
||||
|
||||
|
|
@ -58,19 +55,15 @@ You can run them with `cargo test` and `cargo bench`.
|
|||
| ----------------------------------------- | ------------------------------- | ------------------------------- | ------------------------------- | ------------------------------- | ------------------------------- |
|
||||
| Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz | [1.4321 us 1.4339 us 1.4357 us] | [1.3385 ns 1.3456 ns 1.3552 ns] | [228.77 us 232.17 us 236.23 us] | [24.688 ns 25.083 ns 25.551 ns] | [22.832 ns 22.910 ns 22.995 ns] |
|
||||
| Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz | [1.3439 us 1.3499 us 1.3562 us] | [1.5416 ns 1.5446 ns 1.5481 ns] | [197.46 us 198.37 us 199.22 us] | [20.455 ns 20.486 ns 20.518 ns] | [18.726 ns 18.850 ns 18.993 ns] |
|
||||
| Apple M1 ARM (Macbook Air) | [3.3367 us 3.3629 us 3.4058 us] | [741.75 ps 742.65 ps 743.52 ps] | [210.14 us 210.23 us 210.34 us] | [27.567 ns 27.602 ns 27.650 ns] | [26.716 ns 26.735 ns 26.755 ns] |
|
||||
|
||||
# Contributing
|
||||
|
||||
If you find a vulnerability, bug or would like a new feature, [open a new issue](https://github.com/c0dearm/sharks/issues/new).
|
||||
|
||||
To introduce your changes into the codebase, submit a Pull Request.
|
||||
|
||||
Many thanks!
|
||||
If you find a vulnerability, bug or would like a new feature, reach out to
|
||||
<mailto:team@distrust.co>.
|
||||
|
||||
# License
|
||||
|
||||
Sharks is distributed under the terms of both the MIT license and the
|
||||
Apache License (Version 2.0).
|
||||
Blahaj is distributed under the terms of the MIT license.
|
||||
|
||||
See [LICENSE-APACHE](LICENSE-APACHE) and [LICENSE-MIT](LICENSE-MIT), and
|
||||
[COPYRIGHT](COPYRIGHT) for details.
|
||||
See [LICENSE-MIT](LICENSE-MIT) and [COPYRIGHT](COPYRIGHT) for details.
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
use criterion::{black_box, criterion_group, criterion_main, Criterion};
|
||||
use std::convert::TryFrom;
|
||||
|
||||
use sharks::{Share, Sharks};
|
||||
use blahaj::{Share, Sharks};
|
||||
|
||||
fn dealer(c: &mut Criterion) {
|
||||
let sharks = Sharks(255);
|
||||
|
|
@ -24,10 +25,10 @@ fn recover(c: &mut Criterion) {
|
|||
fn share(c: &mut Criterion) {
|
||||
let bytes_vec = vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
|
||||
let bytes = bytes_vec.as_slice();
|
||||
let share = Share::from(bytes);
|
||||
let share = Share::try_from(bytes).unwrap();
|
||||
|
||||
c.bench_function("share_from_bytes", |b| {
|
||||
b.iter(|| Share::from(black_box(bytes)))
|
||||
b.iter(|| Share::try_from(black_box(bytes)))
|
||||
});
|
||||
|
||||
c.bench_function("share_to_bytes", |b| {
|
||||
|
|
|
|||
20
codecov.yml
20
codecov.yml
|
|
@ -1,20 +0,0 @@
|
|||
codecov:
|
||||
require_ci_to_pass: yes
|
||||
|
||||
coverage:
|
||||
precision: 2
|
||||
round: down
|
||||
range: "90...100"
|
||||
|
||||
parsers:
|
||||
gcov:
|
||||
branch_detection:
|
||||
conditional: yes
|
||||
loop: yes
|
||||
method: no
|
||||
macro: no
|
||||
|
||||
comment:
|
||||
layout: "reach,diff,flags,tree"
|
||||
behavior: default
|
||||
require_changes: no
|
||||
|
|
@ -7,6 +7,9 @@ use core::ops::{Add, Div, Mul, Sub};
|
|||
#[cfg(feature = "fuzzing")]
|
||||
use arbitrary::Arbitrary;
|
||||
|
||||
#[cfg(feature = "zeroize_memory")]
|
||||
use zeroize::Zeroize;
|
||||
|
||||
const LOG_TABLE: [u8; 256] = [
|
||||
0x00, 0x00, 0x01, 0x19, 0x02, 0x32, 0x1a, 0xc6, 0x03, 0xdf, 0x33, 0xee, 0x1b, 0x68, 0xc7, 0x4b,
|
||||
0x04, 0x64, 0xe0, 0x0e, 0x34, 0x8d, 0xef, 0x81, 0x1c, 0xc1, 0x69, 0xf8, 0xc8, 0x08, 0x4c, 0x71,
|
||||
|
|
@ -61,8 +64,10 @@ const EXP_TABLE: [u8; 512] = [
|
|||
0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83, 0x1b, 0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e, 0x01, 0x02,
|
||||
];
|
||||
|
||||
#[derive(Debug, PartialEq, Copy, Clone)]
|
||||
#[derive(Debug, PartialEq, Clone)]
|
||||
#[cfg_attr(feature = "fuzzing", derive(Arbitrary))]
|
||||
#[cfg_attr(feature = "zeroize_memory", derive(Zeroize))]
|
||||
#[cfg_attr(feature = "zeroize_memory", zeroize(drop))]
|
||||
pub struct GF256(pub u8);
|
||||
|
||||
#[allow(clippy::suspicious_arithmetic_impl)]
|
||||
|
|
|
|||
17
src/lib.rs
17
src/lib.rs
|
|
@ -2,7 +2,7 @@
|
|||
//!
|
||||
//! Usage example (std):
|
||||
//! ```
|
||||
//! use sharks::{ Sharks, Share };
|
||||
//! use blahaj::{ Sharks, Share };
|
||||
//!
|
||||
//! // Set a minimum threshold of 10 shares
|
||||
//! let sharks = Sharks(10);
|
||||
|
|
@ -20,7 +20,7 @@
|
|||
//!
|
||||
//! Usage example (no std):
|
||||
//! ```
|
||||
//! use sharks::{ Sharks, Share };
|
||||
//! use blahaj::{ Sharks, Share };
|
||||
//! use rand_chacha::rand_core::SeedableRng;
|
||||
//!
|
||||
//! // Set a minimum threshold of 10 shares
|
||||
|
|
@ -42,7 +42,6 @@ mod share;
|
|||
|
||||
extern crate alloc;
|
||||
|
||||
use alloc::borrow::ToOwned;
|
||||
use alloc::vec::Vec;
|
||||
use hashbrown::HashSet;
|
||||
|
||||
|
|
@ -54,7 +53,7 @@ pub use share::Share;
|
|||
///
|
||||
/// Usage example:
|
||||
/// ```
|
||||
/// # use sharks::{ Sharks, Share };
|
||||
/// # use blahaj::{ Sharks, Share };
|
||||
/// // Set a minimum threshold of 10 shares
|
||||
/// let sharks = Sharks(10);
|
||||
/// // Obtain an iterator over the shares for secret [1, 2, 3, 4]
|
||||
|
|
@ -80,7 +79,7 @@ impl Sharks {
|
|||
///
|
||||
/// Example:
|
||||
/// ```
|
||||
/// # use sharks::{ Sharks, Share };
|
||||
/// # use blahaj::{ Sharks, Share };
|
||||
/// # use rand_chacha::rand_core::SeedableRng;
|
||||
/// # let sharks = Sharks(3);
|
||||
/// // Obtain an iterator over the shares for secret [1, 2]
|
||||
|
|
@ -107,7 +106,7 @@ impl Sharks {
|
|||
///
|
||||
/// Example:
|
||||
/// ```
|
||||
/// # use sharks::{ Sharks, Share };
|
||||
/// # use blahaj::{ Sharks, Share };
|
||||
/// # let sharks = Sharks(3);
|
||||
/// // Obtain an iterator over the shares for secret [1, 2]
|
||||
/// let dealer = sharks.dealer(&[1, 2]);
|
||||
|
|
@ -125,7 +124,7 @@ impl Sharks {
|
|||
///
|
||||
/// Example:
|
||||
/// ```
|
||||
/// # use sharks::{ Sharks, Share };
|
||||
/// # use blahaj::{ Sharks, Share };
|
||||
/// # use rand_chacha::rand_core::SeedableRng;
|
||||
/// # let sharks = Sharks(3);
|
||||
/// # let mut rng = rand_chacha::ChaCha8Rng::from_seed([0x90; 32]);
|
||||
|
|
@ -157,7 +156,7 @@ impl Sharks {
|
|||
return Err("All shares must have the same length");
|
||||
} else {
|
||||
keys.insert(share.x.0);
|
||||
values.push(share.to_owned());
|
||||
values.push(share.clone());
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -202,7 +201,7 @@ mod tests {
|
|||
let sharks = Sharks(255);
|
||||
let mut shares: Vec<Share> = sharks.make_shares(&[1]).take(255).collect();
|
||||
shares[1] = Share {
|
||||
x: shares[0].x,
|
||||
x: shares[0].x.clone(),
|
||||
y: shares[0].y.clone(),
|
||||
};
|
||||
let secret = sharks.recover(&shares);
|
||||
|
|
|
|||
19
src/math.rs
19
src/math.rs
|
|
@ -20,9 +20,9 @@ pub fn interpolate(shares: &[Share]) -> Vec<u8> {
|
|||
shares
|
||||
.iter()
|
||||
.filter(|s_j| s_j.x != s_i.x)
|
||||
.map(|s_j| s_j.x / (s_j.x - s_i.x))
|
||||
.map(|s_j| s_j.x.clone() / (s_j.x.clone() - s_i.x.clone()))
|
||||
.product::<GF256>()
|
||||
* s_i.y[s]
|
||||
* s_i.y[s].clone()
|
||||
})
|
||||
.sum::<GF256>()
|
||||
.0
|
||||
|
|
@ -30,12 +30,12 @@ pub fn interpolate(shares: &[Share]) -> Vec<u8> {
|
|||
.collect()
|
||||
}
|
||||
|
||||
// Generates `k` polynomial coefficients, being the last one `s` and the others randomly generated between `[1, 255]`.
|
||||
// Generates `k` polynomial coefficients, being the last one `s` and the others randomly generated between `[0, 255]`.
|
||||
// Coefficient degrees go from higher to lower in the returned vector order.
|
||||
pub fn random_polynomial<R: rand::Rng>(s: GF256, k: u8, rng: &mut R) -> Vec<GF256> {
|
||||
let k = k as usize;
|
||||
let mut poly = Vec::with_capacity(k);
|
||||
let between = Uniform::new_inclusive(1, 255);
|
||||
let between = Uniform::new_inclusive(0, 255);
|
||||
|
||||
for _ in 1..k {
|
||||
poly.push(GF256(between.sample(rng)));
|
||||
|
|
@ -50,11 +50,14 @@ pub fn random_polynomial<R: rand::Rng>(s: GF256, k: u8, rng: &mut R) -> Vec<GF25
|
|||
// Each polynomial corresponds to one byte chunk of the original secret.
|
||||
// The iterator will start at `x = 1` and end at `x = 255`.
|
||||
pub fn get_evaluator(polys: Vec<Vec<GF256>>) -> impl Iterator<Item = Share> {
|
||||
(1..=u8::max_value()).map(GF256).map(move |x| Share {
|
||||
x,
|
||||
(1..=u8::MAX).map(GF256).map(move |x| Share {
|
||||
x: x.clone(),
|
||||
y: polys
|
||||
.iter()
|
||||
.map(|p| p.iter().fold(GF256(0), |acc, c| acc * x + *c))
|
||||
.map(|p| {
|
||||
p.iter()
|
||||
.fold(GF256(0), |acc, c| acc * x.clone() + c.clone())
|
||||
})
|
||||
.collect(),
|
||||
})
|
||||
}
|
||||
|
|
@ -76,7 +79,7 @@ mod tests {
|
|||
#[test]
|
||||
fn evaluator_works() {
|
||||
let iter = get_evaluator(vec![vec![GF256(3), GF256(2), GF256(5)]]);
|
||||
let values: Vec<_> = iter.take(2).map(|s| (s.x, s.y)).collect();
|
||||
let values: Vec<_> = iter.take(2).map(|s| (s.x.clone(), s.y.clone())).collect();
|
||||
assert_eq!(
|
||||
values,
|
||||
vec![(GF256(1), vec![GF256(4)]), (GF256(2), vec![GF256(13)])]
|
||||
|
|
|
|||
|
|
@ -5,13 +5,16 @@ use super::field::GF256;
|
|||
#[cfg(feature = "fuzzing")]
|
||||
use arbitrary::Arbitrary;
|
||||
|
||||
#[cfg(feature = "zeroize_memory")]
|
||||
use zeroize::Zeroize;
|
||||
|
||||
/// A share used to reconstruct the secret. Can be serialized to and from a byte array.
|
||||
///
|
||||
/// Usage example:
|
||||
/// ```
|
||||
/// use sharks::{Sharks, Share};
|
||||
/// use blahaj::{Sharks, Share};
|
||||
/// use core::convert::TryFrom;
|
||||
/// # use rand_chacha::rand_core::SeedableRng;
|
||||
/// # use core::convert::TryFrom;
|
||||
/// # fn send_to_printer(_: Vec<u8>) {}
|
||||
/// # fn ask_shares() -> Vec<Vec<u8>> {vec![vec![1, 2], vec![2, 3], vec![3, 4]]}
|
||||
///
|
||||
|
|
@ -31,6 +34,8 @@ use arbitrary::Arbitrary;
|
|||
/// let secret = sharks.recover(&shares).unwrap();
|
||||
#[derive(Clone)]
|
||||
#[cfg_attr(feature = "fuzzing", derive(Arbitrary, Debug))]
|
||||
#[cfg_attr(feature = "zeroize_memory", derive(Zeroize))]
|
||||
#[cfg_attr(feature = "zeroize_memory", zeroize(drop))]
|
||||
pub struct Share {
|
||||
pub x: GF256,
|
||||
pub y: Vec<GF256>,
|
||||
|
|
|
|||
Loading…
Reference in New Issue