* used in various SMB2/SMB3 dialect versions.
 *
 * @author mbechler
 */
public class Smb2SigningDigest implements SMBSigningDigest, AutoCloseable {

    private static final Logger log = LoggerFactory.getLogger(Smb2SigningDigest.class);

    /**
     *
     */
    private static final int SIGNATURE_OFFSET = 48;
    private static final int SIGNATURE_LENGTH = 16;

            Smb2SigningDigest digest = new Smb2SigningDigest(sessionKey, Smb2Constants.SMB2_DIALECT_0202, null);
            assertNotNull(digest);
        }

        @Test
        @DisplayName("Should create digest for SMB 2.1 with HmacSHA256")
        void testConstructorSmb210() throws GeneralSecurityException {
            Smb2SigningDigest digest = new Smb2SigningDigest(sessionKey, Smb2Constants.SMB2_DIALECT_0210, null);

        public void setCreditForTest(int credit) {
            setCredit(credit);
        }

        @Override
        public Smb2SigningDigest getDigest() {
            return digest;
        }

        public void setDigest(Smb2SigningDigest digest) {
            this.digest = digest;
        }

        @Override

        // with SMB3's negotiation validation it's no longer possible to ignore this (on the validation response)
        // make sure that validation is performed in any case
        final Smb2SigningDigest dgst = getDigest();
        if (dgst != null && !isAsync() && (getConfig().isRequireSecureNegotiate() || getErrorCode() == NtStatus.NT_STATUS_SUCCESS)) {

     */
    @Override
    public Smb2SigningDigest getDigest() {
        return this.digest;
    }

    /**
     *
     * {@inheritDoc}
     *
     * @see jcifs.internal.CommonServerMessageBlock#setDigest(jcifs.internal.SMBSigningDigest)
     */
    @Override
    public void setDigest(final SMBSigningDigest digest) {
        this.digest = (Smb2SigningDigest) digest;
        if (this.next != null) {

import jcifs.internal.util.SMBUtil;
import jcifs.smb.NtStatus;

class Smb2EchoResponseTest {

    @Mock
    private Configuration mockConfig;

    @Mock
    private Smb2SigningDigest mockDigest;

    private Smb2EchoResponse echoResponse;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        echoResponse = new Smb2EchoResponse(mockConfig);
    }

class ServerMessageBlock2RequestTest {

    @Mock
    private Configuration mockConfig;

    @Mock
    private CIFSContext mockContext;

    @Mock
    private Smb2SigningDigest mockDigest;

    @Mock
    private ServerMessageBlock2Response mockResponse;

    private TestServerMessageBlock2Request testRequest;

    @BeforeEach
    void setUp() {

                            log.debug("Final preauth integrity hash " + Hexdump.toHexString(this.preauthIntegrityHash));
                        }
                        Smb2SigningDigest dgst =
                                new Smb2SigningDigest(this.sessionKey, negoResp.getDialectRevision(), this.preauthIntegrityHash);
                        // verify the server signature here, this is not done automatically as we don't set the

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

class ServerMessageBlock2Test {

    @Mock
    private Configuration mockConfig;

    @Mock
    private Smb2SigningDigest mockDigest;

    @Mock
    private ServerMessageBlock2Response mockResponse;

    private TestServerMessageBlock2 testMessage;

    // Test implementation of abstract class