获取对象的 KMS 密钥名称

获取用于加密对象的资源的 KMS 密钥名称。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

使用客户管理的加密密钥

代码示例

C++

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name,
   std::string const& object_name) {
  StatusOr<gcs::ObjectMetadata> metadata =
      client.GetObjectMetadata(bucket_name, object_name);
  if (!metadata) throw std::move(metadata).status();

  std::cout << "KMS key on object " << metadata->name() << " in bucket "
            << metadata->bucket() << ": " << metadata->kms_key_name() << "\n";
}

PHP

如需了解详情，请参阅 Cloud Storage PHP API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

use Google\Cloud\Storage\StorageClient;

/**
 * Retrieve the KMS key of an object.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 * @param string $objectName The name of your object in the bucket.
 *        (e.g. 'my-object')
 */
function object_get_kms_key(string $bucketName, string $objectName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $object = $bucket->object($objectName);
    $info = $object->info();

    printf(
        'The KMS key of the object is %s' . PHP_EOL,
        $info['kmsKeyName'],
    );
}

Python

如需了解详情，请参阅 Cloud Storage Python API 参考文档。

如需向 Cloud Storage 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

from google.cloud import storage


def object_get_kms_key(bucket_name, blob_name):
    """Retrieve the KMS key of a blob"""
    # bucket_name = "your-bucket-name"
    # blob_name = "your-object-name"

    storage_client = storage.Client()

    bucket = storage_client.bucket(bucket_name)
    blob = bucket.get_blob(blob_name)

    kms_key = blob.kms_key_name

    print(f"The KMS key of a blob is {blob.kms_key_name}")
    return kms_key

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。