diff --git a/package-lock.json b/package-lock.json
index 677c406..57860ef 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@peculiar/webcrypto",
-  "version": "1.2.0",
+  "version": "1.2.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@peculiar/webcrypto",
-      "version": "1.2.0",
+      "version": "1.2.2",
       "license": "MIT",
       "dependencies": {
         "@peculiar/asn1-schema": "^2.0.38",
diff --git a/package.json b/package.json
index 66dffe0..690869c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@peculiar/webcrypto",
-  "version": "1.2.0",
+  "version": "1.2.2",
   "description": "A WebCrypto Polyfill for NodeJS",
   "repository": {
     "type": "git",
diff --git a/src/crypto.ts b/src/crypto.ts
index 2b558b3..513d9a3 100644
--- a/src/crypto.ts
+++ b/src/crypto.ts
@@ -10,7 +10,7 @@ export class Crypto extends core.Crypto {
     if (!ArrayBuffer.isView(array)) {
       throw new TypeError("Failed to execute 'getRandomValues' on 'Crypto': parameter 1 is not of type 'ArrayBufferView'");
     }
-    const buffer = Buffer.from(array.buffer);
+    const buffer = Buffer.from(array.buffer, array.byteOffset, array.byteLength);
     crypto.randomFillSync(buffer);
     return array;
   }
diff --git a/src/keys/key.ts b/src/keys/key.ts
index c8fd240..f9e1c9d 100644
--- a/src/keys/key.ts
+++ b/src/keys/key.ts
@@ -17,6 +17,6 @@ export class CryptoKey extends core.CryptoKey {
   @JsonProp({ type: JsonPropTypes.String })
   protected kty = "oct";
 
-  @JsonProp({ type: JsonPropTypes.String })
+  @JsonProp({ type: JsonPropTypes.String, optional: true })
   protected alg = "";
 }
diff --git a/test/crypto.ts b/test/crypto.ts
index 7c895b8..93b1280 100644
--- a/test/crypto.ts
+++ b/test/crypto.ts
@@ -23,6 +23,16 @@ context("Crypto", () => {
       assert.strictEqual(Buffer.from(array2).equals(array), true);
     });
 
+    it("Uint8Array subarray", () => {
+      const array = new Uint8Array(10);
+      const subarray = array.subarray(0, 5);
+      const array2 = crypto.getRandomValues(subarray);
+
+      assert.notStrictEqual(Buffer.from(array).toString("hex"), "00000000000000000000");
+      assert.strictEqual(subarray, array2);
+      assert.ok(Buffer.from(array).toString("hex").endsWith("0000000000"));
+    });
+
     it("Uint16Array", () => {
       const array = new Uint16Array(5);
       const array2 = crypto.getRandomValues(array);
@@ -67,7 +77,7 @@ context("Crypto", () => {
 
       it("Ed25519", async () => {
         const keys = await crypto.subtle.generateKey({ name: "eddsa", namedCurve: "ed25519" } as globalThis.EcKeyGenParams, false, ["sign", "verify"]);
-        
+
         assert.strictEqual(keys.privateKey.algorithm.name, "EdDSA");
         assert.strictEqual((keys.privateKey.algorithm as EcKeyAlgorithm).namedCurve, "Ed25519");
       });
@@ -195,4 +205,13 @@ context("Crypto", () => {
     });
   });
 
+  it("Import Secret JWK without 'alg' and 'key_ops' fields", async () => {
+    const aesKey = await crypto.subtle.generateKey({ name: "AES-CBC", length: 256 }, true, ["encrypt", "decrypt"]);
+    const jwk = await crypto.subtle.exportKey("jwk", aesKey);
+    delete jwk.key_ops;
+    delete jwk.alg;
+    const hmacKey = await crypto.subtle.importKey("jwk", jwk, { name: "HMAC", hash: "SHA-256" } as Algorithm, false, ["sign", "verify"]);
+    assert.strictEqual(hmacKey.algorithm.name, "HMAC");
+  });
+
 });