Introduce KMS (googleapis#179)

This adds support for KMS.

Author: stephenplusplus

handwritten/storage/package-lock.json

@@ -71,7 +71,7 @@
     "create-error-class": "^3.0.2",
     "duplexify": "^3.5.0",
     "extend": "^3.0.0",
-    "gcs-resumable-upload": "^0.10.1",
+    "gcs-resumable-upload": "^0.10.2",
     "hash-stream-validation": "^0.2.1",
     "is": "^3.0.1",
     "mime": "^2.2.0",

handwritten/storage/package.json

@@ -152,7 +152,9 @@ function rotateEncryptionKey(bucketName, fileName, oldKey, newKey) {
     .file(fileName, {
       encryptionKey: Buffer.from(oldKey, 'base64'),
     })
-    .rotateEncryptionKey(Buffer.from(newKey, 'base64'))
+    .rotateEncryptionKey({
+      encryptionKey: Buffer.from(newKey, 'base64'),
+    })
     .then(() => {
       console.log(`Encryption key rotated successfully.`);
     })