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node_modules/matrix-js-sdk/lib/digest.js

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+/*
+Copyright 2024 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/**
+ * Computes a SHA-256 hash of a string (after utf-8 encoding) and returns it as an ArrayBuffer.
+ *
+ * @param plaintext The string to hash
+ * @returns An Uint8Array containing the SHA-256 hash of the input string
+ * @throws If the subtle crypto API is not available, for example if the code is running
+ *         in a web page with an insecure context (eg. served over plain HTTP).
+ */
+export async function sha256(plaintext) {
+  if (!globalThis.crypto.subtle) {
+    throw new Error("Crypto.subtle is not available: insecure context?");
+  }
+  const utf8 = new TextEncoder().encode(plaintext);
+  const digest = await globalThis.crypto.subtle.digest("SHA-256", utf8);
+  return new Uint8Array(digest);
+}
+//# sourceMappingURL=digest.js.map