webpack
diff --git a/‎.github/workflows/nodejs.yml
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diff --git a/‎.travis.yml
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diff --git a/‎appveyor.yml
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diff --git a/‎lib/getHashDigest.js
Lines changed: 19 additions & 1 deletion b/‎lib/getHashDigest.js
Lines changed: 19 additions & 1 deletion
diff --git a/‎lib/hash/md4.js
Lines changed: 20 additions & 0 deletions b/‎lib/hash/md4.js
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@@ -0,0 +1,82 @@
+name: loader-utils
+
+on:
+  push:
+    branches:
+      - master
+      - next
+  pull_request:
+    branches:
+      - master
+      - next
+
+jobs:
+  lint:
+    name: Lint - ${{ matrix.os }} - Node v${{ matrix.node-version }}
+
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node-version: [12.x]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Lint
+        run: yarn lint
+
+      - name: Security audit
+        run: yarn audit
+
+      - name: Check commit message
+        uses: wagoid/commitlint-github-action@v4
+
+  test:
+    name: Test - ${{ matrix.os }} - Node v${{ matrix.node-version }}
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        node-version: [8.x, 10.x, 12.x, 14.x, 16.x, 17.x]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Setup Git
+        if: matrix.os == 'windows-latest'
+        run: git config --global core.autocrlf input
+
+      - uses: actions/checkout@v2
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn
+
+      - name: Run tests
+        run: yarn test
+
+      - name: Submit coverage data to codecov
+        uses: codecov/codecov-action@v2
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
@@ -39,11 +39,29 @@ function encodeBufferToBase(buffer, base) {
   return output;
 }
 
+let createMd4 = undefined;
+
 function getHashDigest(buffer, hashType, digestType, maxLength) {
   hashType = hashType || 'md4';
   maxLength = maxLength || 9999;
 
-  const hash = require('crypto').createHash(hashType);
+  let hash;
+
+  try {
+    hash = require('crypto').createHash(hashType);
+  } catch (error) {
+    if (error.code === 'ERR_OSSL_EVP_UNSUPPORTED' && hashType === 'md4') {
+      if (createMd4 === undefined) {
+        createMd4 = require('./hash/md4');
+      }
+
+      hash = createMd4();
+    }
+
+    if (!hash) {
+      throw error;
+    }
+  }
 
   hash.update(buffer);