Support for loading, storing, and using kyber keys in decryption

ts/sql/migrations/85-add-kyber-keys.ts

@@ -0,0 +1,42 @@
+// Copyright 2023 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { Database } from '@signalapp/better-sqlite3';
+
+import type { LoggerType } from '../../types/Logging';
+
+export default function updateToSchemaVersion85(
+  currentVersion: number,
+  db: Database,
+  logger: LoggerType
+): void {
+  if (currentVersion >= 85) {
+    return;
+  }
+
+  db.transaction(() => {
+    db.exec(
+      `CREATE TABLE kyberPreKeys(
+        id STRING PRIMARY KEY NOT NULL,
+        json TEXT NOT NULL,
+        ourUuid STRING
+          GENERATED ALWAYS AS (json_extract(json, '$.ourUuid'))
+      );`
+    );
+
+    // To manage our ACI or PNI keys quickly
+    db.exec('CREATE INDEX kyberPreKeys_ourUuid ON kyberPreKeys (ourUuid);');
+
+    // Add time to all existing preKeys to allow us to expire them
+    const now = Date.now();
+    db.exec(
+      `UPDATE preKeys SET
+        json = json_set(json, '$.createdAt', ${now});
+      `
+    );
+
+    db.pragma('user_version = 85');
+  })();
+
+  logger.info('updateToSchemaVersion85: success!');
+}