bucket

Specifies default encryption for a bucket using server-side encryption with different key options. By default, all buckets have a default encryption configuration that uses server-side encryption with Amazon S3 managed keys (SSE-S3). You can optionally configure default encryption for a bucket by using server-side encryption with an Amazon Web Services KMS key (SSE-KMS) or a customer-provided key (SSE-C). For information about the bucket default encryption feature, see Amazon S3 Bucket Default Encryption in the Amazon S3 User Guide.