- Parquet API supports columnar compression for  using GZIP, Snappy, LZ4. Whole object compression is not supported for Parquet objects.
- Server-side encryption - The Select API supports querying objects that are protected with server-side encryption.

    /**
     * @return whether signatures are enforced from either side
     * @throws SmbException
     */
    boolean isSigningEnforced () throws SmbException;


    /**
     * @return the encryption key used by the server
     */
    byte[] getServerEncryptionKey ();


    /**
     * @param ctx
     * @return session
     */
    SmbSession getSmbSession ( CIFSContext ctx );

// certified module.
//
// If FIPS-140 is enabled no non-NIST/FIPS approved
// primitives must be used.
const Enabled = enabled

// DARECiphers returns a list of supported cipher suites
// for the DARE object encryption.
func DARECiphers() []byte {
	if Enabled {
		return []byte{sio.AES_256_GCM}
	}
	return []byte{sio.AES_256_GCM, sio.CHACHA20_POLY1305}
}

// TLSCiphers returns a list of supported TLS transport

	globalRefreshIAMInterval = 10 * time.Minute

	// Limit of location constraint XML for unauthenticated PUT bucket operations.
	maxLocationConstraintSize = 3 * humanize.MiByte

	// Maximum size of default bucket encryption configuration allowed
	maxBucketSSEConfigSize = 1 * humanize.MiByte

	// diskFillFraction is the fraction of a disk we allow to be filled.
	diskFillFraction = 0.99

package crypto

import (
	"bytes"
	"crypto/md5"
	"encoding/base64"
	"net/http"

	xhttp "github.com/minio/minio/internal/http"
)

// RemoveSensitiveHeaders removes confidential encryption
// information - e.g. the SSE-C key - from the HTTP headers.
// It has the same semantics as RemoveSensitiveEntries.
func RemoveSensitiveHeaders(h http.Header) {
	h.Del(xhttp.AmzServerSideEncryptionCustomerKey)

    }


    /**
     * 
     * @param dialect
     * @param sessionKey
     * @param preauthIntegrity
     * @return derived encryption key
     */
    public static byte[] deriveEncryptionKey ( int dialect, byte[] sessionKey, byte[] preauthIntegrity ) {
        return derive(
            sessionKey,

...
```

### Encrypted/Object locked objects

	// expect to fail with `ErrUnsignedHeaders` because couldn't find some header
	_, errCode = extractSignedHeaders(signedHeaders, r)
	if errCode != ErrUnsignedHeaders {
		t.Fatalf("Expected the APIErrorCode to %d, but got %d", ErrUnsignedHeaders, errCode)
	}
	// set headers value through Get parameter
	inputQuery.Add("x-amz-server-side-encryption", xhttp.AmzEncryptionAES)

            context.style = new AttributedStyle();
            context.addInHeader(
                    context.style.italic().bold().foreground(Colors.rgbColor("green")),
                    "Maven Encryption " + CLIReportingUtils.showVersionMinimal());
            context.addInHeader("Tool for secure password management on workstations.");
            context.addInHeader("This tool is part of Apache Maven 4 distribution.");

	{Encrypted: false, Metadata: map[string]string{"": ""}},                                        // 7
	{Encrypted: false, Metadata: map[string]string{"X-Minio-Internal-Server-Side-Encryption": ""}}, // 8
}

func TestIsEncrypted(t *testing.T) {
	for i, test := range isEncryptedTests {
		if _, isEncrypted := IsEncrypted(test.Metadata); isEncrypted != test.Encrypted {