diff --git a/.github/workflows/retail-mac.yml b/.github/workflows/retail-mac.yml new file mode 100644 index 0000000..aba89e5 --- /dev/null +++ b/.github/workflows/retail-mac.yml @@ -0,0 +1,61 @@ +name: retail-mac + +on: + pull_request: + paths: + - ".github/workflows/retail-mac.yml" + - "retail-mac/**" + - "Cargo.*" + push: + branches: master + +defaults: + run: + working-directory: retail-mac + +env: + CARGO_INCREMENTAL: 0 + RUSTFLAGS: "-Dwarnings" + +jobs: + build: + runs-on: ubuntu-latest + strategy: + matrix: + rust: + - 1.71.0 # MSRV + - stable + target: + - thumbv7em-none-eabi + - wasm32-unknown-unknown + steps: + - uses: actions/checkout@v4 + - uses: RustCrypto/actions/cargo-cache@master + - uses: dtolnay/rust-toolchain@master + with: + toolchain: ${{ matrix.rust }} + targets: ${{ matrix.target }} + - run: cargo build --no-default-features --release --target ${{ matrix.target }} + + minimal-versions: + # disabled until belt-block gets published + if: false + uses: RustCrypto/actions/.github/workflows/minimal-versions.yml@master + with: + working-directory: ${{ github.workflow }} + + test: + runs-on: ubuntu-latest + strategy: + matrix: + rust: + - 1.72.0 # MSRV + - stable + steps: + - uses: actions/checkout@v4 + - uses: RustCrypto/actions/cargo-cache@master + - uses: dtolnay/rust-toolchain@master + with: + toolchain: ${{ matrix.rust }} + - run: cargo test --release --no-default-features + - run: cargo test --release diff --git a/Cargo.lock b/Cargo.lock index d906585..36ba3ae 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -240,6 +240,17 @@ dependencies = [ "getrandom", ] +[[package]] +name = "retail-mac" +version = "0.2.0-pre.2" +dependencies = [ + "aes", + "cipher", + "des", + "digest", + "hex-literal", +] + [[package]] name = "sha1" version = "0.11.0-pre.4" diff --git a/Cargo.toml b/Cargo.toml index eec9b9d..4e023fa 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -1,6 +1,6 @@ [workspace] resolver = "2" -members = ["belt-mac", "cbc-mac", "cmac", "hmac", "pmac"] +members = ["belt-mac", "cbc-mac", "cmac", "hmac", "pmac", "retail-mac"] [profile.dev] opt-level = 2 diff --git a/README.md b/README.md index de7f30b..9f2ddce 100644 --- a/README.md +++ b/README.md @@ -8,13 +8,14 @@ Collection of [Message Authentication Code][1] (MAC) algorithms written in pure ## Supported Algorithms -| Algorithm | Crate | Crates.io | Documentation | MSRV | -|------------|--------------|:---------:|:-------------:|:----:| -| [BelT MAC] | [`belt-mac`] | [![crates.io](https://img.shields.io/crates/v/belt-mac.svg)](https://crates.io/crates/belt-mac) | [![Documentation](https://docs.rs/belt-mac/badge.svg)](https://docs.rs/belt-mac) | ![MSRV 1.57][msrv-1.57] | -| [CBC-MAC] | [`cbc-mac`] | [![crates.io](https://img.shields.io/crates/v/cbc-mac.svg)](https://crates.io/crates/cbc-mac) | [![Documentation](https://docs.rs/cbc-mac/badge.svg)](https://docs.rs/cbc-mac) | ![MSRV 1.56][msrv-1.56] | -| [CMAC] | [`cmac`] | [![crates.io](https://img.shields.io/crates/v/cmac.svg)](https://crates.io/crates/cmac) | [![Documentation](https://docs.rs/cmac/badge.svg)](https://docs.rs/cmac) | ![MSRV 1.56][msrv-1.56] | -| [HMAC] | [`hmac`] | [![crates.io](https://img.shields.io/crates/v/hmac.svg)](https://crates.io/crates/hmac) | [![Documentation](https://docs.rs/hmac/badge.svg)](https://docs.rs/hmac) | ![MSRV 1.41][msrv-1.41] | -| [PMAC] | [`pmac`] | [![crates.io](https://img.shields.io/crates/v/pmac.svg)](https://crates.io/crates/pmac) | [![Documentation](https://docs.rs/pmac/badge.svg)](https://docs.rs/pmac) | ![MSRV 1.56][msrv-1.56] | +| Algorithm | Crate | Crates.io | Documentation | MSRV | +|--------------|----------------|:---------:|:-------------:|:----:| +| [BelT MAC] | [`belt-mac`] | [![crates.io](https://img.shields.io/crates/v/belt-mac.svg)](https://crates.io/crates/belt-mac) | [![Documentation](https://docs.rs/belt-mac/badge.svg)](https://docs.rs/belt-mac) | ![MSRV 1.57][msrv-1.57] | +| [CBC-MAC] | [`cbc-mac`] | [![crates.io](https://img.shields.io/crates/v/cbc-mac.svg)](https://crates.io/crates/cbc-mac) | [![Documentation](https://docs.rs/cbc-mac/badge.svg)](https://docs.rs/cbc-mac) | ![MSRV 1.56][msrv-1.56] | +| [CMAC] | [`cmac`] | [![crates.io](https://img.shields.io/crates/v/cmac.svg)](https://crates.io/crates/cmac) | [![Documentation](https://docs.rs/cmac/badge.svg)](https://docs.rs/cmac) | ![MSRV 1.56][msrv-1.56] | +| [HMAC] | [`hmac`] | [![crates.io](https://img.shields.io/crates/v/hmac.svg)](https://crates.io/crates/hmac) | [![Documentation](https://docs.rs/hmac/badge.svg)](https://docs.rs/hmac) | ![MSRV 1.41][msrv-1.41] | +| [PMAC] | [`pmac`] | [![crates.io](https://img.shields.io/crates/v/pmac.svg)](https://crates.io/crates/pmac) | [![Documentation](https://docs.rs/pmac/badge.svg)](https://docs.rs/pmac) | ![MSRV 1.56][msrv-1.56] | +| [Retail MAC] | [`retail-mac`] | [![crates.io](https://img.shields.io/crates/v/retail-mac.svg)](https://crates.io/crates/retail-mac) | [![Documentation](https://docs.rs/retail-mac/badge.svg)](https://docs.rs/retail-mac) | ![MSRV 1.56][msrv-1.56] | ### Minimum Supported Rust Version (MSRV) Policy @@ -51,6 +52,7 @@ Unless you explicitly state otherwise, any contribution intentionally submitted [`cmac`]: ./cmac [`hmac`]: ./hmac [`pmac`]: ./pmac +[`retail-mac`]: ./retail-mac [//]: # (footnotes) @@ -63,3 +65,4 @@ Unless you explicitly state otherwise, any contribution intentionally submitted [CMAC]: https://en.wikipedia.org/wiki/One-key_MAC [HMAC]: https://en.wikipedia.org/wiki/HMAC [PMAC]: https://en.wikipedia.org/wiki/PMAC_(cryptography) +[Retail MAC]: https://en.wikipedia.org/wiki/ISO/IEC_9797-1#MAC_algorithm_3 diff --git a/retail-mac/CHANGELOG.md b/retail-mac/CHANGELOG.md new file mode 100644 index 0000000..dae238b --- /dev/null +++ b/retail-mac/CHANGELOG.md @@ -0,0 +1,11 @@ +# 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). + +## 0.1.0 (2024-??-??) +- Initial release ([#170]) + +[#170]: https://github.com/RustCrypto/MACs/pull/170 diff --git a/retail-mac/Cargo.toml b/retail-mac/Cargo.toml new file mode 100644 index 0000000..670f4cc --- /dev/null +++ b/retail-mac/Cargo.toml @@ -0,0 +1,31 @@ +[package] +name = "retail-mac" +version = "0.1.0" +description = "Implementation of Retail Message Authentication Code (Retail MAC)" +authors = ["RustCrypto Developers"] +license = "MIT OR Apache-2.0" +edition = "2021" +rust-version = "1.71" +readme = "README.md" +documentation = "https://docs.rs/retail-mac" +repository = "https://github.com/RustCrypto/MACs" +keywords = ["crypto", "mac"] + +[dependencies] +cipher = "=0.5.0-pre.7" +digest = { version = "=0.11.0-pre.9", features = ["mac"] } + +[dev-dependencies] +digest = { version = "=0.11.0-pre.9", features = ["dev"] } +hex-literal = "0.4" + +aes = "0.9.0-pre.2" +des = "0.9.0-pre.2" + +[features] +std = ["digest/std"] +zeroize = ["cipher/zeroize"] + +[package.metadata.docs.rs] +all-features = true +rustdoc-args = ["--cfg", "docsrs"] diff --git a/retail-mac/LICENSE-APACHE b/retail-mac/LICENSE-APACHE new file mode 100644 index 0000000..78173fa --- /dev/null +++ b/retail-mac/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/retail-mac/README.md b/retail-mac/README.md new file mode 100644 index 0000000..775e593 --- /dev/null +++ b/retail-mac/README.md @@ -0,0 +1,57 @@ +# RustCrypto: Retail MAC + +[![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] + +Pure Rust implementation of the [Retail Message Authentication Code][Retail MAC], +also known as ISO/IEC 9797-1 MAC algorithm 3. + +[Documentation][docs-link] + +## Minimum Supported Rust Version + +Rust **1.56** 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/retail-mac.svg +[crate-link]: https://crates.io/crates/retail-mac +[docs-image]: https://docs.rs/retail-mac/badge.svg +[docs-link]: https://docs.rs/retail-mac/ +[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg +[rustc-image]: https://img.shields.io/badge/rustc-1.56+-blue.svg +[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg +[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260044-MACs +[build-image]: https://github.com/RustCrypto/MACs/workflows/retail-mac/badge.svg?branch=master&event=push +[build-link]: https://github.com/RustCrypto/MACs/actions?query=workflow%3Aretail-mac + +[//]: # (general links) + +[Retail MAC]: https://en.wikipedia.org/wiki/ISO/IEC_9797-1#MAC_algorithm_3 diff --git a/retail-mac/benches/mod.rs b/retail-mac/benches/mod.rs new file mode 100644 index 0000000..adf8ee5 --- /dev/null +++ b/retail-mac/benches/mod.rs @@ -0,0 +1,23 @@ +#![feature(test)] +extern crate test; + +use aes::Aes128; +use des::Des; +use retail_mac::{KeyInit, RetailMac}; +use test::Bencher; + +digest::bench_update!( + RetailMac::::new(&Default::default()); + retail_mac_aes128_10 10; + retail_mac_aes128_100 100; + retail_mac_aes128_1000 1000; + retail_mac_aes128_10000 10000; +); + +digest::bench_update!( + RetailMac::::new(&Default::default()); + retail_mac_des_10 10; + retail_mac_des_100 100; + retail_mac_des_1000 1000; + retail_mac_des_10000 10000; +); diff --git a/retail-mac/src/lib.rs b/retail-mac/src/lib.rs new file mode 100644 index 0000000..0958008 --- /dev/null +++ b/retail-mac/src/lib.rs @@ -0,0 +1,245 @@ +//! [Retail Message Authentication Code (Retail MAC)][Retail MAC] +//! implemented in pure Rust and generic over block cipher. +//! +//! **WARNING!** The algorithm has known weaknesses in case of variable-length +//! messages. See the Wikipedia article for (CBC-MAC)[CBC-MAC] for more information. +//! +//! # Examples +//! +//! ``` +//! use retail_mac::{digest::KeyInit, RetailMac, Mac}; +//! use des::Des; +//! use hex_literal::hex; +//! +//! type RetailMacDes = RetailMac; +//! +//! // test from ISO/IEC 9797-1:2011 section B.4 +//! // K and K' are concatenated: +//! let key = hex!("0123456789ABCDEFFEDCBA9876543210"); +//! +//! let mut mac = RetailMacDes::new_from_slice(&key).unwrap(); +//! mac.update(b"Now is the time for all "); +//! let correct = hex!("A1C72E74EA3FA9B6"); +//! mac.verify_slice(&correct).unwrap(); +//! +//! let mut mac2 = RetailMacDes::new_from_slice(&key).unwrap(); +//! mac2.update(b"Now is the time for it"); +//! let correct2 = hex!("2E2B1428CC78254F"); +//! mac2.verify_slice(&correct2).unwrap(); +//! ``` +//! +//! [Retail MAC]: https://en.wikipedia.org/wiki/ISO/IEC_9797-1#MAC_algorithm_3 +//! [CBC-MAC]: https://en.wikipedia.org/wiki/CBC-MAC#Security_with_fixed_and_variable-length_messages + +#![no_std] +#![doc( + html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/26acc39f/logo.svg", + html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/26acc39f/logo.svg" +)] +#![deny(unsafe_code)] +#![cfg_attr(docsrs, feature(doc_cfg))] +#![warn(missing_docs, rust_2018_idioms)] + +pub use digest::{self, Key, KeyInit, Mac}; + +use cipher::{ + BlockCipherDecrypt, BlockCipherEncBackend, BlockCipherEncClosure, BlockCipherEncrypt, + InvalidLength, KeySizeUser, +}; +use core::fmt; +use digest::{ + array::{ + typenum::{IsLess, Le, NonZero, U2, U256}, + Array, ArraySize, + }, + block_buffer::Eager, + core_api::{ + AlgorithmName, Block, BlockSizeUser, Buffer, BufferKindUser, CoreWrapper, FixedOutputCore, + UpdateCore, + }, + crypto_common::BlockSizes, + MacMarker, Output, OutputSizeUser, Reset, +}; + +#[cfg(feature = "zeroize")] +use cipher::zeroize::{Zeroize, ZeroizeOnDrop}; + +/// Generic Retail MAC instance. +pub type RetailMac = CoreWrapper>; + +/// Generic core Retail MAC instance, which operates over blocks. +#[derive(Clone)] +pub struct RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, +{ + cipher: C, + cipher_prime: C, + state: Block, +} + +impl BlockSizeUser for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, +{ + type BlockSize = C::BlockSize; +} + +impl OutputSizeUser for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, +{ + type OutputSize = C::BlockSize; +} + +impl KeySizeUser for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, + ::BlockSize: core::ops::Mul, + <::BlockSize as core::ops::Mul>::Output: ArraySize, +{ + type KeySize = <::BlockSize as core::ops::Mul>::Output; +} + +impl MacMarker for RetailMacCore where C: BlockCipherEncrypt + BlockCipherDecrypt + Clone {} + +impl BufferKindUser for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, +{ + type BufferKind = Eager; +} + +impl KeyInit for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone + KeyInit, + ::BlockSize: core::ops::Mul, + <::BlockSize as core::ops::Mul>::Output: ArraySize, +{ + #[inline(always)] + fn new(key: &Key) -> Self { + Self::new_from_slice(key.as_slice()).unwrap() + } + + #[inline(always)] + fn new_from_slice(key: &[u8]) -> Result { + let cipher = C::new_from_slice(&key[..key.len() / 2])?; + let cipher_prime = C::new_from_slice(&key[key.len() / 2..])?; + Ok(Self { + cipher, + cipher_prime, + state: Block::::default(), + }) + } +} + +impl UpdateCore for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, +{ + #[inline] + fn update_blocks(&mut self, blocks: &[Block]) { + struct Closure<'a, N: BlockSizes> { + state: &'a mut Block, + blocks: &'a [Block], + } + + impl<'a, N: BlockSizes> BlockSizeUser for Closure<'a, N> { + type BlockSize = N; + } + + impl<'a, N: BlockSizes> BlockCipherEncClosure for Closure<'a, N> { + #[inline(always)] + fn call>(self, backend: &B) { + for block in self.blocks { + xor(self.state, block); + backend.encrypt_block((self.state).into()); + } + } + } + + let Self { cipher, state, .. } = self; + cipher.encrypt_with_backend(Closure { state, blocks }) + } +} + +impl Reset for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, +{ + #[inline(always)] + fn reset(&mut self) { + self.state = Default::default(); + } +} + +impl FixedOutputCore for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, + C::BlockSize: IsLess, + Le: NonZero, +{ + #[inline] + fn finalize_fixed_core(&mut self, buffer: &mut Buffer, out: &mut Output) { + let Self { + state, + cipher, + cipher_prime, + } = self; + let pos = buffer.get_pos(); + if pos != 0 { + xor(state, &buffer.pad_with_zeros()); + cipher.encrypt_block(state); + } + cipher_prime.decrypt_block(state); + cipher.encrypt_block(state); + out.copy_from_slice(state); + } +} + +impl AlgorithmName for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone + AlgorithmName, +{ + fn write_alg_name(f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.write_str("RetailMac<")?; + ::write_alg_name(f)?; + f.write_str(">") + } +} + +impl fmt::Debug for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone + AlgorithmName, +{ + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.write_str("RetailMacCore<")?; + ::write_alg_name(f)?; + f.write_str("> { ... }") + } +} + +#[cfg(feature = "zeroize")] +#[cfg_attr(docsrs, doc(cfg(feature = "zeroize")))] +impl Drop for RetailMacCore +where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone, +{ + fn drop(&mut self) { + self.state.zeroize(); + } +} + +#[cfg(feature = "zeroize")] +#[cfg_attr(docsrs, doc(cfg(feature = "zeroize")))] +impl ZeroizeOnDrop for RetailMacCore where + C: BlockCipherEncrypt + BlockCipherDecrypt + Clone + ZeroizeOnDrop +{ +} + +#[inline(always)] +fn xor(buf: &mut Array, data: &Array) { + for i in 0..N::USIZE { + buf[i] ^= data[i]; + } +}