x448: initial import

.github/workflows/x448.yml

@@ -0,0 +1,111 @@
+name: x448
+
+on:
+  pull_request:
+    paths:
+      - ".github/workflows/x448.yml"
+      - "ed448-goldilocks/**"
+      - "x448/**"
+      - "Cargo.*"
+  push:
+    branches: master
+
+defaults:
+  run:
+    working-directory: x448
+
+env:
+  CARGO_INCREMENTAL: 0
+  RUSTFLAGS: "-Dwarnings"
+  RUSTDOCFLAGS: "-Dwarnings"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.85.0 # MSRV
+          - stable
+        target:
+          - thumbv7em-none-eabi
+          - wasm32-unknown-unknown
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.rust }}
+          targets: ${{ matrix.target }}
+      - run: cargo build --target ${{ matrix.target }} --release
+
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          # 32-bit Linux
+          - target: i686-unknown-linux-gnu
+            rust: 1.85.0 # MSRV
+            deps: sudo apt update && sudo apt install gcc-multilib
+          - target: i686-unknown-linux-gnu
+            rust: stable
+            deps: sudo apt update && sudo apt install gcc-multilib
+
+          # 64-bit Linux
+          - target: x86_64-unknown-linux-gnu
+            rust: 1.85.0 # MSRV
+          - target: x86_64-unknown-linux-gnu
+            rust: stable
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.rust }}
+          targets: ${{ matrix.target }}
+      - uses: RustCrypto/actions/cargo-hack-install@master
+      - run: ${{ matrix.deps }}
+      - run: cargo test --release --target ${{ matrix.target }}
+
+  cross:
+    strategy:
+      matrix:
+        include:
+          # ARM32
+          - target: armv7-unknown-linux-gnueabihf
+            rust: 1.85.0 # MSRV (cross)
+          - target: armv7-unknown-linux-gnueabihf
+            rust: stable
+
+          # ARM64
+          - target: aarch64-unknown-linux-gnu
+            rust: 1.85.0 # MSRV (cross)
+          - target: aarch64-unknown-linux-gnu
+            rust: stable
+
+          # PPC32
+          - target: powerpc-unknown-linux-gnu
+            rust: 1.85.0 # MSRV (cross)
+          - target: powerpc-unknown-linux-gnu
+            rust: stable
+
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: ${{ matrix.deps }}
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.rust }}
+          targets: ${{ matrix.target }}
+      - uses: RustCrypto/actions/cross-install@master
+      - run: cross test --release --target ${{ matrix.target }}
+
+  doc:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: RustCrypto/actions/cargo-cache@master
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: stable
+      - run: cargo doc

Cargo.toml

@@ -14,7 +14,8 @@ members = [
     "p521",
     "primefield",
     "primeorder",
-    "sm2"
+    "sm2",
+    "x448"
 ]
 
 [profile.dev]
@@ -24,6 +25,7 @@ opt-level = 2
 ecdsa = { git = "https://github.com/RustCrypto/signatures.git" }
 elliptic-curve = { git = "https://github.com/RustCrypto/traits.git" }
 
+ed448-goldilocks = { path = "ed448-goldilocks" }
 hash2curve = { path = "hash2curve" }
 primefield = { path = "primefield" }
 primeorder = { path = "primeorder" }

x448/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "x448"
+version = "0.7.0-pre"
+authors = ["RustCrypto Developers"]
+categories = ["cryptography"]
+keywords = ["cryptography", "crypto", "x448", "diffie-hellman", "curve448",]
+homepage = "https://docs.rs/x448/"
+repository = "https://github.com/RustCrypto/elliptic-curves/tree/master/x448"
+documentation = "https://docs.rs/ed448-goldilocks"
+license = "Apache-2.0 OR MIT"
+edition = "2024"
+rust-version = "1.85"
+readme = "README.md"
+description = "A pure-Rust implementation of X448."
+
+[dependencies]
+ed448-goldilocks = { version = "0.14.0-pre.0", default-features = false }
+rand_core = { version = "0.9", default-features = false } 
+
+[dependencies.zeroize]
+version = "1"
+default-features = false
+features = ["zeroize_derive"]
+
+[dev-dependencies]
+rand = "0.9"