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Diffstat (limited to 'rust/vendor/universal-hash')
| -rw-r--r-- | rust/vendor/universal-hash/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | rust/vendor/universal-hash/CHANGELOG.md | 40 | ||||
| -rw-r--r-- | rust/vendor/universal-hash/Cargo.toml | 35 | ||||
| -rw-r--r-- | rust/vendor/universal-hash/LICENSE-APACHE | 201 | ||||
| -rw-r--r-- | rust/vendor/universal-hash/LICENSE-MIT | 25 | ||||
| -rw-r--r-- | rust/vendor/universal-hash/README.md | 59 | ||||
| -rw-r--r-- | rust/vendor/universal-hash/src/lib.rs | 184 |
7 files changed, 545 insertions, 0 deletions
diff --git a/rust/vendor/universal-hash/.cargo-checksum.json b/rust/vendor/universal-hash/.cargo-checksum.json new file mode 100644 index 0000000..612ba55 --- /dev/null +++ b/rust/vendor/universal-hash/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"CHANGELOG.md":"14ebb7cc5931bb00cf51825bba54d05b95d67ce74791f7e6b0237211a353a152","Cargo.toml":"b818950b6dba770be5838f5f2cf8bdbafd8269647257e9025762f7f33c3d627c","LICENSE-APACHE":"a9040321c3712d8fd0b09cf52b17445de04a23a10165049ae187cd39e5c86be5","LICENSE-MIT":"6b50510a0400c72172355cc5d2ba0f2c5c2eb33149b8f96539dc345fdc484920","README.md":"863a0828cdc8f8d11a2b3b566bd9a5008d489903820258b3eacf6005274d6d2c","src/lib.rs":"f62ac0a7746f489f3753af1bf1e0775c4c5cda0bb003df08777beda97ebb91bd"},"package":"9f214e8f697e925001e66ec2c6e37a4ef93f0f78c2eed7814394e10c62025b05"}
\ No newline at end of file diff --git a/rust/vendor/universal-hash/CHANGELOG.md b/rust/vendor/universal-hash/CHANGELOG.md new file mode 100644 index 0000000..7959f75 --- /dev/null +++ b/rust/vendor/universal-hash/CHANGELOG.md @@ -0,0 +1,40 @@ +# 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). + +## 0.4.1 (2021-07-20) +### Changed +- Pin `subtle` dependency to v2.4 ([#689]) + +[#689]: https://github.com/RustCrypto/traits/pull/689 + +## 0.4.0 (2020-06-04) +### Added +- `Key` and `Block` type aliases ([#128]) + +### Changed +- Split `UniversalHash` initialization into `NewUniversalHash` trait ([#135]) +- Rename `update_block` => `update` ([#129]) +- Bump `generic-array` dependency to v0.14 ([#95]) + +[#135]: https://github.com/RustCrypto/traits/pull/135 +[#129]: https://github.com/RustCrypto/traits/pull/129 +[#128]: https://github.com/RustCrypto/traits/pull/128 +[#95]: https://github.com/RustCrypto/traits/pull/95 + +## 0.3.0 (2019-10-03) +- Rename `OutputSize` -> `BlockSize` ([#57]) + +[#57]: https://github.com/RustCrypto/traits/pull/57 + +## 0.2.0 (2019-08-31) +### Changed +- Split KeySize/OutputSize ([#55]) + +[#55]: https://github.com/RustCrypto/traits/pull/55 + +## 0.1.0 (2019-08-30) +- Initial release diff --git a/rust/vendor/universal-hash/Cargo.toml b/rust/vendor/universal-hash/Cargo.toml new file mode 100644 index 0000000..b2f27b0 --- /dev/null +++ b/rust/vendor/universal-hash/Cargo.toml @@ -0,0 +1,35 @@ +# 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 believe there's an error in this file please file an +# issue against the rust-lang/cargo repository. If you're +# editing this file be aware that the upstream Cargo.toml +# will likely look very different (and much more reasonable) + +[package] +edition = "2018" +name = "universal-hash" +version = "0.4.1" +authors = ["RustCrypto Developers"] +description = "Trait for universal hash functions" +documentation = "https://docs.rs/universal-hash" +readme = "README.md" +keywords = ["crypto", "mac"] +categories = ["cryptography", "no-std"] +license = "MIT OR Apache-2.0" +repository = "https://github.com/RustCrypto/traits" +[package.metadata.docs.rs] +all-features = true +[dependencies.generic-array] +version = "0.14" + +[dependencies.subtle] +version = "=2.4" +default-features = false + +[features] +std = [] diff --git a/rust/vendor/universal-hash/LICENSE-APACHE b/rust/vendor/universal-hash/LICENSE-APACHE new file mode 100644 index 0000000..78173fa --- /dev/null +++ b/rust/vendor/universal-hash/LICENSE-APACHE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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IN NO EVENT +SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR +IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/rust/vendor/universal-hash/README.md b/rust/vendor/universal-hash/README.md new file mode 100644 index 0000000..20fd50a --- /dev/null +++ b/rust/vendor/universal-hash/README.md @@ -0,0 +1,59 @@ +# RustCrypto: Universal Hash Function Traits + +[![crate][crate-image]][crate-link] +[![Docs][docs-image]][docs-link] +![Apache2/MIT licensed][license-image] +![Rust Version][rustc-image] +[![Project Chat][chat-image]][chat-link] +[![Build Status][build-image]][build-link] + +Traits which define functionality of [universal hash functions]. + +See [RustCrypto/universal-hashes] for implementations which use this trait. + +[Documentation][docs-link] + +## Minimum Supported Rust Version + +Rust **1.41** or higher. + +Minimum supported Rust version can be changed in the future, but it will be +done with a minor version bump. + +## SemVer Policy + +- All on-by-default features of this library are covered by SemVer +- MSRV is considered exempt from SemVer as noted above + +## License + +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://img.shields.io/crates/v/universal-hash.svg +[crate-link]: https://crates.io/crates/universal-hash +[docs-image]: https://docs.rs/universal-hash/badge.svg +[docs-link]: https://docs.rs/universal-hash/ +[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg +[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg +[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg +[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260051-universal-hashes +[build-image]: https://github.com/RustCrypto/traits/workflows/universal-hash/badge.svg?branch=master&event=push +[build-link]: https://github.com/RustCrypto/traits/actions?query=workflow%3Auniversal-hash + +[//]: # (general links) + +[universal hash functions]: https://en.wikipedia.org/wiki/Universal_hashing +[RustCrypto/universal-hashes]: https://github.com/RustCrypto/universal-hashes diff --git a/rust/vendor/universal-hash/src/lib.rs b/rust/vendor/universal-hash/src/lib.rs new file mode 100644 index 0000000..dc802c8 --- /dev/null +++ b/rust/vendor/universal-hash/src/lib.rs @@ -0,0 +1,184 @@ +//! Traits for [Universal Hash Functions]. +//! +//! # About universal hashes +//! +//! Universal hash functions provide a "universal family" of possible +//! hash functions where a given member of a family is selected by a key. +//! +//! They are well suited to the purpose of "one time authenticators" for a +//! sequence of bytestring inputs, as their construction has a number of +//! desirable properties such as pairwise independence as well as amenability +//! to efficient implementations, particularly when implemented using SIMD +//! instructions. +//! +//! When combined with a cipher, such as in Galois/Counter Mode (GCM) or the +//! Salsa20 family AEAD constructions, they can provide the core functionality +//! for a Message Authentication Code (MAC). +//! +//! [Universal Hash Functions]: https://en.wikipedia.org/wiki/Universal_hashing + +#![no_std] +#![forbid(unsafe_code)] +#![doc( + html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/8f1a9894/logo.svg", + html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/8f1a9894/logo.svg", + html_root_url = "https://docs.rs/universal-hash/0.4.1" +)] +#![warn(missing_docs, rust_2018_idioms)] + +#[cfg(feature = "std")] +extern crate std; + +pub use generic_array::{self, typenum::consts}; + +use generic_array::typenum::Unsigned; +use generic_array::{ArrayLength, GenericArray}; +use subtle::{Choice, ConstantTimeEq}; + +/// Keys to a [`UniversalHash`]. +pub type Key<U> = GenericArray<u8, <U as NewUniversalHash>::KeySize>; + +/// Blocks are inputs to a [`UniversalHash`]. +pub type Block<U> = GenericArray<u8, <U as UniversalHash>::BlockSize>; + +/// Instantiate a [`UniversalHash`] algorithm. +pub trait NewUniversalHash: Sized { + /// Size of the key for the universal hash function. + type KeySize: ArrayLength<u8>; + + /// Instantiate a universal hash function with the given key. + fn new(key: &Key<Self>) -> Self; +} + +/// The [`UniversalHash`] trait defines a generic interface for universal hash +/// functions. +pub trait UniversalHash: Clone { + /// Size of the inputs to and outputs from the universal hash function + type BlockSize: ArrayLength<u8>; + + /// Input a block into the universal hash function + fn update(&mut self, block: &Block<Self>); + + /// Input data into the universal hash function. If the length of the + /// data is not a multiple of the block size, the remaining data is + /// padded with zeroes up to the `BlockSize`. + /// + /// This approach is frequently used by AEAD modes which use + /// Message Authentication Codes (MACs) based on universal hashing. + fn update_padded(&mut self, data: &[u8]) { + let mut chunks = data.chunks_exact(Self::BlockSize::to_usize()); + + for chunk in &mut chunks { + self.update(GenericArray::from_slice(chunk)); + } + + let rem = chunks.remainder(); + + if !rem.is_empty() { + let mut padded_block = GenericArray::default(); + padded_block[..rem.len()].copy_from_slice(rem); + self.update(&padded_block); + } + } + + /// Reset [`UniversalHash`] instance. + fn reset(&mut self); + + /// Obtain the [`Output`] of a [`UniversalHash`] function and consume it. + fn finalize(self) -> Output<Self>; + + /// Obtain the [`Output`] of a [`UniversalHash`] computation and reset it back + /// to its initial state. + fn finalize_reset(&mut self) -> Output<Self> { + let res = self.clone().finalize(); + self.reset(); + res + } + + /// Verify the [`UniversalHash`] of the processed input matches a given [`Output`]. + /// This is useful when constructing Message Authentication Codes (MACs) + /// from universal hash functions. + fn verify(self, other: &Block<Self>) -> Result<(), Error> { + if self.finalize() == other.into() { + Ok(()) + } else { + Err(Error) + } + } +} + +/// Outputs of universal hash functions which are a thin wrapper around a +/// byte array. Provides a safe [`Eq`] implementation that runs in constant time, +/// which is useful for implementing Message Authentication Codes (MACs) based +/// on universal hashing. +#[derive(Clone)] +pub struct Output<U: UniversalHash> { + bytes: GenericArray<u8, U::BlockSize>, +} + +impl<U> Output<U> +where + U: UniversalHash, +{ + /// Create a new [`Output`] block. + pub fn new(bytes: Block<U>) -> Output<U> { + Output { bytes } + } + + /// Get the inner [`GenericArray`] this type wraps + pub fn into_bytes(self) -> Block<U> { + self.bytes + } +} + +impl<U> From<Block<U>> for Output<U> +where + U: UniversalHash, +{ + fn from(bytes: Block<U>) -> Self { + Output { bytes } + } +} + +impl<'a, U> From<&'a Block<U>> for Output<U> +where + U: UniversalHash, +{ + fn from(bytes: &'a Block<U>) -> Self { + bytes.clone().into() + } +} + +impl<U> ConstantTimeEq for Output<U> +where + U: UniversalHash, +{ + fn ct_eq(&self, other: &Self) -> Choice { + self.bytes.ct_eq(&other.bytes) + } +} + +impl<U> PartialEq for Output<U> +where + U: UniversalHash, +{ + fn eq(&self, x: &Output<U>) -> bool { + self.ct_eq(x).unwrap_u8() == 1 + } +} + +impl<U: UniversalHash> Eq for Output<U> {} + +/// Error type for when the [`Output`] of a [`UniversalHash`] +/// is not equal to the expected value. +#[derive(Default, Debug, Copy, Clone, Eq, PartialEq)] +pub struct Error; + +impl core::fmt::Display for Error { + fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result { + f.write_str("UHF output mismatch") + } +} + +#[cfg(feature = "std")] +impl std::error::Error for Error {} |