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node_modules/matrix-js-sdk/lib/rust-crypto/secret-storage.js

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+/*
+Copyright 2023 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.
+*/
+
+/**
+ * Check that the private cross signing keys (master, self signing, user signing) are stored in the secret storage and encrypted with the default secret storage key.
+ *
+ * @param secretStorage - The secret store using account data
+ * @returns True if the cross-signing keys are all stored and encrypted with the same secret storage key.
+ *
+ * @internal
+ */
+export async function secretStorageContainsCrossSigningKeys(secretStorage) {
+  return secretStorageCanAccessSecrets(secretStorage, ["m.cross_signing.master", "m.cross_signing.user_signing", "m.cross_signing.self_signing"]);
+}
+
+/**
+ *
+ * Check that the secret storage can access the given secrets using the default key.
+ *
+ * @param secretStorage - The secret store using account data
+ * @param secretNames - The secret names to check
+ * @returns True if all the given secrets are accessible and encrypted with the given key.
+ *
+ * @internal
+ */
+export async function secretStorageCanAccessSecrets(secretStorage, secretNames) {
+  const defaultKeyId = await secretStorage.getDefaultKeyId();
+  if (!defaultKeyId) return false;
+  for (const secretName of secretNames) {
+    // check which keys this particular secret is encrypted with
+    const record = (await secretStorage.isStored(secretName)) || {};
+    // if it's not encrypted with the right key, there is no point continuing
+    if (!(defaultKeyId in record)) return false;
+  }
+  return true;
+}
+//# sourceMappingURL=secret-storage.js.map