} catch (final UnsupportedEncodingException e) {
            throw new ClIllegalStateException(e);
        }
        final byte[] digest = msgDigest.digest();

        final StringBuilder buffer = new StringBuilder(200);
        for (final byte element : digest) {
            final String tmp = Integer.toHexString(element & 0xff);
            if (tmp.length() == 1) {
                buffer.append('0').append(tmp);

        }
        this.digest.update(input, offset, len);
        this.updates++;
    }

    /**
     * Finalize and return the calculated message digest
     *
     * @return calculated digest
     */
    public byte[] digest() {
        byte[] b = this.digest.digest();

        if (log.isTraceEnabled()) {
            log.trace("digest: ");

    /**
     * Get an MD4 message digest instance.
     * @return MD4 digest instance
     */
    public static MessageDigest getMD4() {
        try {
            return MessageDigest.getInstance("MD4", getProvider());
        } catch (final NoSuchAlgorithmException e) {
            throw new CIFSUnsupportedCryptoException(e);
        }
    }

    /**
     * Get an MD5 message digest instance.
     * @return MD5 digest instance

                        }

                        uid = response.uid;

                        if (request.digest != null) {
                            /* success - install the signing digest */
                            transport.digest = request.digest;
                        }

                        connectionState = 2;

                        state = 0;

            return; /* CRITICAL */
        }
        digest.update(input, offset, len);
        updates++;
    }

    /**
     * Computes and returns the message digest.
     *
     * @return the computed digest bytes
     */
    public byte[] digest() {
        byte[] b = digest.digest();

        if (LogStream.level >= 5) {
            log.println("digest: ");
            Hexdump.hexdump(log, b, 0, b.length);

        assertDoesNotThrow(() -> digest.update(data, 0, 0));
    }

    @Test
    @DisplayName("Test digest method")
    void testDigest() {
        SMB1SigningDigest digest = new SMB1SigningDigest(testMacSigningKey);
        byte[] data = new byte[] { 0x01, 0x02, 0x03, 0x04 };
        digest.update(data, 0, data.length);

        byte[] result = digest.digest();
        assertNotNull(result);

        mac.update(seqBytes); // sequence
        mac.update(data); // data
        final byte[] dgst = mac.digest();
        byte[] trunc = new byte[8];
        System.arraycopy(dgst, 0, trunc, 0, 8);

        if (log.isDebugEnabled()) {
            log.debug("Digest " + Hexdump.toHexString(dgst));
            log.debug("Truncated " + Hexdump.toHexString(trunc));
        }

            Arrays.fill(sessionKey, (byte) 0xEE);

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

            // Close multiple times should not throw
            digest.close();
            digest.close();
            digest.secureWipeKey();
            digest.close();

            // Operations should still fail
            byte[] data = new byte[128];

        // Given
        doNothing().when(messageBlock).setDigest(digest);
        when(messageBlock.getDigest()).thenReturn(digest);

        // When
        messageBlock.setDigest(digest);
        SMBSigningDigest retrievedDigest = messageBlock.getDigest();

        // Then
        assertEquals(digest, retrievedDigest);
        verify(messageBlock).setDigest(digest);
        verify(messageBlock).getDigest();
    }

    @Test

        assertEquals(fid, SMBUtil.readInt2(dst, 0));
        // lastWriteTime is not written if digest is null, so the remaining bytes should be zero
        assertEquals(0, SMBUtil.readInt4(dst, 2));
    }

    /**
     * Test method for {@link jcifs.internal.smb1.com.SmbComClose#writeParameterWordsWireFormat(byte[], int)} with a signing digest.
     */
    @Test
    public void testWriteParameterWordsWireFormatWithDigest() {