initial rc5 impl

.github/workflows/rc5.yml

@@ -0,0 +1,63 @@
+name: rc5
+on:
+  pull_request:
+    paths:
+      - "rc5/**"
+      - "Cargo.*"
+  push:
+    branches: master
+
+defaults:
+  run:
+    working-directory: rc5
+
+env:
+  CARGO_INCREMENTAL: 0
+  RUSTFLAGS: "-Dwarnings"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.56.0 # MSRV
+          - stable
+        target:
+          - thumbv7em-none-eabi
+          - wasm32-unknown-unknown
+    steps:
+      - uses: actions/checkout@v3
+      - uses: RustCrypto/actions/cargo-cache@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          target: ${{ matrix.target }}
+          override: true
+      - run: cargo build --no-default-features --release --target ${{ matrix.target }}
+
+  minimal-versions:
+    uses: RustCrypto/actions/.github/workflows/minimal-versions.yml@master
+    with:
+        working-directory: ${{ github.workflow }}
+
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.56.0 # MSRV
+          - stable
+    steps:
+      - uses: actions/checkout@v3
+      - uses: RustCrypto/actions/cargo-cache@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+          profile: minimal
+      - run: cargo check --all-features
+      - run: cargo test --no-default-features
+      - run: cargo test
+      - run: cargo test --all-features

Cargo.toml

@@ -15,6 +15,7 @@ members = [
     "sm4",
     "twofish",
     "threefish",
+    "rc5"
 ]
 
 [profile.dev]

rc5/CHANGELOG.md

@@ -0,0 +1,8 @@
+# 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 (2022-11-23)

rc5/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "rc5"
+version = "0.1.0"
+description = "RC5 block cipher"
+authors = ["RustCrypto Developers"]
+edition = "2021"
+license = "MIT OR Apache-2.0"
+rust-version = "1.56"
+readme = "README.md"
+repository = "https://github.com/RustCrypto/block-ciphers"
+keywords = ["crypto", "rc5", "block-cipher"]
+categories = ["cryptography"]
+
+[dependencies]
+cipher = { version = "0.4.3", features = ["zeroize"] }
+
+[dev-dependencies]
+cipher = { version = "0.4.3", features = ["dev"] }
+
+[features]
+zeroize = []

rc5/LICENSE-APACHE

@@ -0,0 +1,13 @@
+Copyright 2022 Antonio Dropulic
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

rc5/LICENSE-MIT

@@ -0,0 +1,25 @@
+Copyright (c) 2022 Antonio Dropulic
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. 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.

rc5/README.md

@@ -0,0 +1,71 @@
+# RustCrypto: RC5 Cipher
+
+[![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]
+[![HAZMAT][hazmat-image]][hazmat-link]
+
+Pure Rust implementation of the [RC5 block cipher][1].
+
+[Documentation][docs-link]
+
+## ⚠️ Security Warning: [Hazmat!][hazmat-link]
+
+This crate does not ensure ciphertexts are authentic (i.e. by using a MAC to
+verify ciphertext integrity), which can lead to serious vulnerabilities
+if used incorrectly!
+
+No security audits of this crate have ever been performed, and it has not been
+thoroughly assessed to ensure its operation is constant-time on common CPU
+architectures.
+
+USE AT YOUR OWN RISK!
+
+## 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/rc5.svg
+[crate-link]: https://crates.io/crates/rc5
+[docs-image]: https://docs.rs/rc5/badge.svg
+[docs-link]: https://docs.rs/rc5/
+[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
+[hazmat-image]: https://img.shields.io/badge/crypto-hazmat%E2%9A%A0-red.svg
+[hazmat-link]: https://github.com/RustCrypto/meta/blob/master/HAZMAT.md
+[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
+[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260039-block-ciphers
+[build-image]: https://github.com/RustCrypto/block-ciphers/workflows/rc5/badge.svg?branch=master&event=push
+[build-link]: https://github.com/RustCrypto/block-ciphers/actions?query=workflow%3Arc5
+
+[//]: # (general links)
+
+[1]: https://en.wikipedia.org/wiki/RC5

rc5/benches/mod.rs

@@ -0,0 +1,27 @@
+#![feature(test)]
+extern crate test;
+
+use cipher::{block_decryptor_bench, block_encryptor_bench};
+use rc5::{RC5_32_12_16, RC5_32_16_16};
+
+block_encryptor_bench!(
+    Key: RC5_32_12_16,
+    rc5_32_12_16_encrypt_block,
+    rc5_32_12_16_encrypt_blocks,
+);
+block_decryptor_bench!(
+    Key: RC5_32_12_16,
+    rc5_32_12_16_decrypt_block,
+    rc5_32_12_16_decrypt_blocks,
+);
+
+block_encryptor_bench!(
+    Key: RC5_32_16_16,
+    rc5_32_16_16_encrypt_block,
+    rc5_32_16_16_encrypt_blocks,
+);
+block_decryptor_bench!(
+    Key: RC5_32_16_16,
+    rc5_32_16_16_decrypt_block,
+    rc5_32_16_16_decrypt_blocks,
+);