E2E encryption (prototype) (#601)

Prototype E2E encryption

common/spaces/encrypted_space_primitives.test.ts

@@ -0,0 +1,62 @@
+import { MemoryKvPrimitives } from "../../plugos/lib/memory_kv_primitives.ts";
+import { assert, assertEquals } from "../../test_deps.ts";
+import { ChunkedKvStoreSpacePrimitives } from "./chunked_datastore_space_primitives.ts";
+import { EncryptedSpacePrimitives } from "./encrypted_space_primitives.ts";
+import { testSpacePrimitives } from "./space_primitives.test.ts";
+
+Deno.test("Encrypted Space Primitives", async () => {
+  // Using an in-memory store for testing
+  const memoryKv = new MemoryKvPrimitives();
+  const spacePrimitives = new EncryptedSpacePrimitives(
+    new ChunkedKvStoreSpacePrimitives(
+      memoryKv,
+      1024 * 1024,
+    ),
+  );
+  assertEquals(false, await spacePrimitives.init());
+  await spacePrimitives.setup("password");
+  assertEquals(await spacePrimitives.fetchFileList(), []);
+  await testSpacePrimitives(spacePrimitives);
+
+  // Let's try an incorrect password
+  try {
+    await spacePrimitives.login("wronk");
+    assert(false);
+  } catch (e: any) {
+    assertEquals(e.message, "Incorrect password");
+  }
+
+  // Now let's update the password
+  await spacePrimitives.updatePassword("password", "password2");
+
+  try {
+    await spacePrimitives.updatePassword("password", "password2");
+    assert(false);
+  } catch (e: any) {
+    assertEquals(e.message, "Incorrect password");
+  }
+
+  await spacePrimitives.writeFile(
+    "test.txt",
+    new TextEncoder().encode("Hello World"),
+  );
+
+  // Let's do this again with the new password
+
+  const spacePrimitives2 = new EncryptedSpacePrimitives(
+    new ChunkedKvStoreSpacePrimitives(
+      memoryKv,
+      1024 * 1024,
+    ),
+  );
+  assertEquals(true, await spacePrimitives2.init());
+  await spacePrimitives2.login("password2");
+  assertEquals(
+    new TextDecoder().decode(
+      (await spacePrimitives2.readFile("test.txt")).data,
+    ),
+    "Hello World",
+  );
+  await spacePrimitives2.deleteFile("test.txt");
+  await testSpacePrimitives(spacePrimitives2);
+});