chore: trigger CI for 314385d

.editorconfig

@@ -0,0 +1,5 @@
+root = true
+
+[**.{cc,js}]
+indent_style = space
+indent_size = 2

.github/workflows/ci.yml

@@ -0,0 +1,77 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test-native:
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macOS-latest]
+        node-version: [18.x, 20.x, 21.x]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Node.js ${{matrix.node-version}}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{matrix.node-version}}
+      - name: Build
+        run: npm install
+      - name: Test
+        run: npm test
+  build-wasm:
+    runs-on: ubuntu-latest
+    env:
+      NODE_VERSION: 18.x
+      EMSDK_VERSION: 3.1.14
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Node.js ${{env.NODE_VERSION}}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{env.NODE_VERSION}}
+      - name: Set up Emscripten SDK ${{env.EMSDK_VERSION}}
+        uses: mymindstorm/setup-emsdk@v14
+        with:
+          version: ${{env.EMSDK_VERSION}}
+      - name: Install dependencies
+        run: npm install --ignore-scripts
+      - name: Build WebAssembly module
+        run: npm run build-wasm
+      - name: Upload build output
+        uses: actions/upload-artifact@v4
+        with:
+          name: wasm-gen
+          path: |
+            wasm/mceliece.wasm
+            wasm/mceliece_constants.js
+          if-no-files-found: error
+  test-wasm:
+    needs: build-wasm
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macOS-latest, windows-latest]
+        node-version: [18.x, 20.x, 21.x]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Node.js ${{matrix.node-version}}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{matrix.node-version}}
+      - name: Install dependencies
+        run: npm install --ignore-scripts
+      - name: Download WebAssembly module
+        uses: actions/download-artifact@v4
+        with:
+          name: wasm-gen
+          path: wasm
+      - name: Test
+        run: npm test

.gitignore

@@ -0,0 +1,4 @@
+build/
+node_modules/
+wasm/mceliece.wasm
+wasm/mceliece_constants.js

README.md

@@ -0,0 +1,88 @@
+# mceliece-nist
+
+This package provides Node.js bindings for the reference implementation that is
+part of the [NIST submission](https://classic.mceliece.org/nist.html) by
+Bernstein et al.
+
+This version is based on the round-4 submission `mceliece-20221023`.
+See [`deps/mceliece`](deps/mceliece).
+
+## Installation
+
+Installation should work as usual:
+
+```sh
+npm i mceliece-nist
+```
+
+## Example
+
+```javascript
+const { McEliece } = require('mceliece-nist');
+
+const kem = new McEliece('mceliece8192128');
+const { publicKey, privateKey } = kem.keypair();
+
+const { key, encryptedKey } = kem.generateKey(publicKey);
+console.log(`Bob is using the key ${key.toString('hex')}`);
+
+const receivedKey = kem.decryptKey(privateKey, encryptedKey);
+console.log(`Alice is using the key ${receivedKey.toString('hex')}`);
+```
+
+## API
+
+The package exports a single class, `McEliece`.
+
+### Class `McEliece`
+
+#### `new McEliece(algorithm)`
+
+Creates a new instance using the specified algorithm. `algorithm` must be one of
+the values contained in `McEliece.supportedAlgorithms`.
+
+#### `McEliece.supportedAlgorithms`
+
+This static field is an array of all supported algorithms.
+
+#### `instance.keySize`
+
+The (maximum) key size in bytes that this instance can encapsulate.
+
+#### `instance.encryptedKeySize`
+
+The size of the encapsulated key in bytes.
+
+#### `instance.publicKeySize`
+
+The size of the public key in bytes.
+
+#### `instance.privateKeySize`
+
+The size of the private key in bytes.
+
+#### `instance.keypair([callback])`
+
+Creates and returns a new key pair `{ publicKey, privateKey }`. Both keys will
+be returned as `Buffer`s.
+
+If `callback` is a function, `keypair` immediately returns `undefined` and calls
+`callback(err, { publicKey, privateKey })` as soon as a new keypair has been
+generated.
+
+#### `instance.generateKey(publicKey)`
+
+Generates a new symmetric key and encrypts it using the given `publicKey`.
+Returns `{ key, encryptedKey }`, both objects will be `Buffer`s.
+
+#### `instance.decryptKey(privateKey, encryptedKey[, callback])`
+
+Decrypts the `encryptedKey` that was returned by
+`instance.generateKey(publicKey)` and returns the decrypted key as a `Buffer`.
+
+If `callback` is a function, `decryptKey` immediately returns `undefined` and
+calls `callback(err, key)` as soon as the key has been decrypted.
+
+## License
+
+This project is distributed under the ISC license.

binding.gyp

@@ -0,0 +1,20 @@
+{
+  "targets": [
+    {
+      "target_name": "node_mceliece",
+      "sources": ["node_mceliece.cc"],
+      "include_dirs": [
+        "<!@(node -p \"require('node-addon-api').include\")",
+        "<(module_root_dir)/deps/mceliece"
+      ],
+      "dependencies": [
+        "<!(node -p \"require('node-addon-api').gyp\")",
+        "<(module_root_dir)/deps/mceliece/binding.gyp:mceliece"
+      ],
+      "defines": [
+        "NAPI_DISABLE_CPP_EXCEPTIONS",
+        "NODE_ADDON_API_DISABLE_DEPRECATED"
+      ]
+    }
+  ]
+}

deps/mceliece/.gitignore

@@ -0,0 +1,3 @@
+*.o
+mceliece.a
+*.tar.gz

deps/mceliece/README.md

@@ -0,0 +1,35 @@
+# Reference implementation of Classic McEliece
+
+The `kem` directory contains the reference implementation of the Classic
+McEliece KEM that was provided by Bernstein et al. as part of the
+[Classic McEliece NIST submission](https://classic.mceliece.org/nist.html).
+
+- Source: Round-4 submission package
+- Revision: `mceliece-20221023`
+- File: [`mceliece-20221023.tar.gz`](https://classic.mceliece.org/nist/mceliece-20221023.tar.gz)
+  - `37bc7bddf9b061cb52992afe27f40f82` (md5)
+  - `e939e24b0f840a1a78c474575b846c50986d4651` (sha1)
+  - `sha256: 0428f1c9aeb3472ab580f21693d7fa26ccc92f29beee40a78cc88dab79dfb7a3` (sha256)
+
+## Automatically applied patches
+
+The `extract-kem-from-nist-submission` script was used to generate the contents
+of the `kem` directory as well as the header file `mceliece.h` and the file
+`binding.gyp`.
+
+The contents of the `kem` directory correspond to the contents of the
+`Reference_Implementation/kem` directory that is part of the submission package.
+However, the `extract-kem-from-nist-submission` script applies the following
+patches.
+
+- The reference implementation uses libkeccak to implement SHAKE256. However,
+  because Node.js uses OpenSSL by default, references to libkeccak header files
+  are replaced with references to [`mceliece_externals.h`](mceliece_externals.h)
+  that defines a compatible interface. The implementation of the interface
+  uses OpenSSL.
+- The reference implementation uses a random number generator that is based on
+  AES256-CTR. Instead, we patch the implementation to use the random number
+  generator provided by OpenSSL via
+  [`mceliece_externals.h`](mceliece_externals.h).
+- Files that are not required for providing bindings for the reference
+  implementation are removed (e.g., `KATNUM`).