cts: initial crate (#70)

.github/workflows/cts.yaml

@@ -0,0 +1,60 @@
+name: cts
+
+on:
+  pull_request:
+    paths:
+      - "cts/**"
+      - "Cargo.*"
+  push:
+    branches: master
+
+defaults:
+  run:
+    working-directory: cts
+
+env:
+  CARGO_INCREMENTAL: 0
+  RUSTFLAGS: "-Dwarnings"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.81.0 # 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:
+          - 1.81.0 # 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
+      - run: cargo test --all-features

Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
 resolver = "2"
-members = ["belt-ctr", "cbc", "cfb8", "cfb-mode", "ctr", "ige", "ofb", "pcbc"]
+members = ["belt-ctr", "cbc", "cts", "cfb8", "cfb-mode", "ctr", "ige", "ofb", "pcbc"]
 
 [profile.dev]
 opt-level = 2

README.md

@@ -26,6 +26,7 @@ less error-prone than manual integrity verification.
 | [8-bit Cipher Feedback][CFB-8] | [`cfb8`] | [![crates.io](https://img.shields.io/crates/v/cfb8.svg)](https://crates.io/crates/cfb8) | [![Documentation](https://docs.rs/cfb8/badge.svg)](https://docs.rs/cfb8) |  ![MSRV 1.56][msrv-1.56] |
 | [Full-block Cipher Feedback][CFB] | [`cfb-mode`] | [![crates.io](https://img.shields.io/crates/v/cfb-mode.svg)](https://crates.io/crates/cfb-mode) | [![Documentation](https://docs.rs/cfb-mode/badge.svg)](https://docs.rs/cfb-mode) |  ![MSRV 1.56][msrv-1.56] |
 | [Counter][CTR] | [`ctr`] | [![crates.io](https://img.shields.io/crates/v/ctr.svg)](https://crates.io/crates/ctr) | [![Documentation](https://docs.rs/ctr/badge.svg)](https://docs.rs/ctr) |  ![MSRV 1.56][msrv-1.56] |
+| [Ciphertext stealing][CTS] | [`cts`] | [![crates.io](https://img.shields.io/crates/v/cts.svg)](https://crates.io/crates/cts) | [![Documentation](https://docs.rs/cts/badge.svg)](https://docs.rs/cts) |  ![MSRV 1.81][msrv-1.81] |
 | [GOST R 34.13-2015] | [`gost-modes`] | [![crates.io](https://img.shields.io/crates/v/gost-modes.svg)](https://crates.io/crates/gost-modes) | [![Documentation](https://docs.rs/gost-modes/badge.svg)](https://docs.rs/gost-modes) | ![MSRV 1.56][msrv-1.56] |
 | [Infinite Garble Extension][IGE] | [`ige`] | [![crates.io](https://img.shields.io/crates/v/ige.svg)](https://crates.io/crates/ige) | [![Documentation](https://docs.rs/ige/badge.svg)](https://docs.rs/ige) |  ![MSRV 1.56][msrv-1.56] |
 | [Output Feedback][OFB] | [`ofb`] | [![crates.io](https://img.shields.io/crates/v/ofb.svg)](https://crates.io/crates/ofb) | [![Documentation](https://docs.rs/ofb/badge.svg)](https://docs.rs/ofb) |  ![MSRV 1.56][msrv-1.56] |
@@ -60,6 +61,7 @@ Unless you explicitly state otherwise, any contribution intentionally submitted
 [aead-link]: https://github.com/RustCrypto/AEADs
 [msrv-1.56]: https://img.shields.io/badge/rustc-1.56.0+-blue.svg
 [msrv-1.57]: https://img.shields.io/badge/rustc-1.57.0+-blue.svg
+[msrv-1.81]: https://img.shields.io/badge/rustc-1.81.0+-blue.svg
 
 [//]: # (crates)
 
@@ -68,6 +70,7 @@ Unless you explicitly state otherwise, any contribution intentionally submitted
 [`cfb8`]: ./cfb8
 [`cfb-mode`]: ./cfb-mode
 [`ctr`]: ./ctr
+[`cts`]: ./cts
 [`gost-modes`]: ./gost-modes
 [`ige`]: ./ige
 [`ofb`]: ./ofb
@@ -81,6 +84,7 @@ Unless you explicitly state otherwise, any contribution intentionally submitted
 [CFB-8]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#CFB-1,_CFB-8,_CFB-64,_CFB-128,_etc.
 [CFB]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Full-block_CFB
 [CTR]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Counter_(CTR)
+[CTS]: https://en.wikipedia.org/wiki/Ciphertext_stealing
 [GOST R 34.13-2015]: https://tc26.ru/standard/gost/GOST_R_3413-2015.pdf
 [IGE]: https://www.links.org/files/openssl-ige.pdf
 [OFB]: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Output_feedback_(OFB)

cts/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).
+
+## 0.6.0 (2024-11-01)
+- Initial release ([#70])
+
+[#70]: https://github.com/RustCrypto/block-modes/pull/70