// SSE-S3 auto-encryption. SSE-S3 auto-encryption, if enabled,
	// requires a valid KMS configuration and turns any non-SSE-C
	// request into an SSE-S3 request.
	// If present EnvAutoEncryption must be either "on" or "off".
	EnvKMSAutoEncryption = "MINIO_KMS_AUTO_ENCRYPTION"
)

// LookupAutoEncryption returns true if and only if
// the MINIO_KMS_AUTO_ENCRYPTION env. variable is
// set to "on".

	errKMSDefaultKeyAlreadyConfigured = errors.New("A default encryption already exists on KMS")
	// Additional MinIO errors for SSE-C requests.
	errObjectTampered = errors.New("The requested object was modified and may be compromised")
	// error returned when invalid encryption parameters are specified
	errInvalidEncryptionParameters     = errors.New("The encryption parameters are not applicable to this object")

	"io"

	sse "github.com/minio/minio/internal/bucket/encryption"
)

// BucketSSEConfigSys - in-memory cache of bucket encryption config
type BucketSSEConfigSys struct{}

// NewBucketSSEConfigSys - Creates an empty in-memory bucket encryption configuration cache
func NewBucketSSEConfigSys() *BucketSSEConfigSys {
	return &BucketSSEConfigSys{}
}

// Get - gets bucket encryption config for the given bucket.

	"github.com/minio/minio/internal/logger"
	"github.com/minio/mux"
	"github.com/minio/pkg/v2/policy"
)

const (
	// Bucket Encryption configuration file name.
	bucketSSEConfig = "bucket-encryption.xml"
)

// PutBucketEncryptionHandler - Stores given bucket encryption configuration
// https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketEncryption.html

			t.Errorf("Test %d: Decryption returned wrong error code: got %d , want %d", i, err, test.expErr)
		} else if _, enc := crypto.IsEncrypted(test.info.UserDefined); encrypted && enc != encrypted {
			t.Errorf("Test %d: Decryption thinks object is encrypted but it is not", i)
		} else if !encrypted && enc != encrypted {
			t.Errorf("Test %d: Decryption thinks object is not encrypted but it is", i)
		}
	}
}

Andreas Auernhammer <******@****.***> 1620979145 +0200

UTCNow(), Size: 3430, Mode: 0x0, Metadata: map[string]string{"X-Minio-Internal-Server-Side-Encryption-Iv": "jIJPsrkkVYYMvc7edBrNl+7zcM7+ZwXqMb/YAjBO/ck=", "X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id": "my-minio-key", "X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key": "IAAfAP2p7ZLv3UpLwBnsKkF2mtWba0qoY42tymK0szRgGvAxBNcXyHXYooe9dQpeeEJWgKUa/8R61oCy1mFwIg==", "X-Minio-Internal-Server-Side-Encryption-S3-Sealed-Key": "IAAfAPFYRDkHVirJBJxBixNj3PLWt78dFuUTyTLIdLG820J7XqLPBO4gpEEEWw/DoTs...

```
export MINIO_KMS_AUTO_ENCRYPTION=on
```

### Verify auto-encryption

> Note that auto-encryption only affects requests without S3 encryption headers. So, if a S3 client sends
> e.g. SSE-C headers, MinIO will encrypt the object with the key sent by the client and won't reach out to
> the configured KMS.

To verify auto-encryption, use the following `mc` command:

```

func (e Error) Error() string {
	if e.msg == "" {
		return "crypto: cause <nil>"
	}
	return e.msg
}

var (
	// ErrInvalidEncryptionMethod indicates that the specified SSE encryption method
	// is not supported.
	ErrInvalidEncryptionMethod = Errorf("The encryption method is not supported")

	// ErrInvalidCustomerAlgorithm indicates that the specified SSE-C algorithm
	// is not supported.

// NewMultipartUploadHandler - New multipart upload.
// Notice: The S3 client can send secret keys in headers for encryption related jobs,
// the handler should ensure to remove these keys before sending them to the object layer.
// Currently these keys are:
//   - X-Amz-Server-Side-Encryption-Customer-Key
//   - X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key
func (api objectAPIHandlers) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {