if err != nil {
			return err
		}
		sealedKey = objectKey.Seal(newKey.Plaintext, crypto.GenerateIV(rand.Reader), crypto.S3.String(), bucket, object)
		crypto.S3.CreateMetadata(metadata, newKey.KeyID, newKey.Ciphertext, sealedKey)
		return nil
	case crypto.S3KMS:
		if GlobalKMS == nil {
			return errKMSNotConfigured
		}
		objectKey, err := crypto.S3KMS.UnsealObjectKey(GlobalKMS, metadata, bucket, object)
		if err != nil {