1 files changed, 27 insertions, 0 deletions
diff --git a/data/extensions/jsr@javascriptrestrictor/nscl/common/sha256.js b/data/extensions/jsr@javascriptrestrictor/nscl/common/sha256.js
new file mode 100644
index 0000000..73d2b66
--- /dev/null
+++ b/data/extensions/jsr@javascriptrestrictor/nscl/common/sha256.js
@@ -0,0 +1,27 @@
+/*
+ * NoScript Commons Library
+ * Reusable building blocks for cross-browser security/privacy WebExtensions.
+ * Copyright (C) 2020-2023 Giorgio Maone <https://maone.net>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+async function sha256(aString) {
+  const bytes = new TextEncoder().encode(aString);
+  const hashBytes = await crypto.subtle.digest("SHA-256", bytes);
+  return new Uint8Array(hashBytes).reduce(
+    (s, b) => s + b.toString(16).padStart(2, "0"), ""
+  );
+}
+\ No newline at end of file