ciphers.add(EncryptionNegotiateContext.CIPHER_AES256_GCM);
                    ciphers.add(EncryptionNegotiateContext.CIPHER_AES256_CCM);
                }

                // Always include AES-128 for compatibility
                ciphers.add(EncryptionNegotiateContext.CIPHER_AES128_GCM);
                ciphers.add(EncryptionNegotiateContext.CIPHER_AES128_CCM);

        // + 1 byte 0x00
        // + context
        System.arraycopy(context, 0, suffix, label.length + 1, context.length);
        // + 4 byte (== r bits) big endian encoding of L
        suffix[suffix.length - 1] = (byte) 128;

        final DerivationParameters param = new KDFCounterParameters(sessionKey, null /* prefix */, suffix /* suffix */, r /* r */);
        gen.init(param);

        final byte[] derived = new byte[16];

            'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' };

    private static final char PAD = '=';

    private static final byte[] DECODE_TABLE = new byte[128];
    static {
        for (int i = 0; i < DECODE_TABLE.length; i++) {
            DECODE_TABLE[i] = Byte.MAX_VALUE;
        }
        for (int i = 0; i < ENCODE_TABLE.length; i++) {

        // Multi-byte tag (e.g., 80)
        InputStream s = new ByteArrayInputStream(new byte[] { (byte) 0x81, 0x00 });
        int tagNo = ASN1Util.readTagNumber(s, 0x1F);
        assertEquals(128, tagNo);
    }

    @Test
    void testReadTagNumber_CorruptedHighTag() {
        // High tag < 31
        InputStream s = new ByteArrayInputStream(new byte[] { 0x1E });

    - [Client Binaries](#client-binaries-1)
    - [Server Binaries](#server-binaries-1)
    - [Node Binaries](#node-binaries-1)
  - [Changelog since v1.12.8](#changelog-since-v1128)
    - [Other notable changes](#other-notable-changes-1)
- [v1.12.8](#v1128)
  - [Downloads for v1.12.8](#downloads-for-v1128)
    - [Client Binaries](#client-binaries-2)
    - [Server Binaries](#server-binaries-2)
    - [Node Binaries](#node-binaries-2)

    assertMinSize(difference(setSize(2), setSize(3)), 0);
    assertMinSize(difference(setSize(3), setSize(2)), 1);
    assertMinSize(difference(setSizeRange(10, 20), setSizeRange(1, 2)), 8);
    assertMinSize(difference(setSizeRange(1, 2), setSizeRange(10, 20)), 0);
    assertMinSize(difference(setSizeRange(10, 20), setSizeRange(11, 12)), 0);

            byte[] buffer = new byte[512];
            System.arraycopy(SMBUtil.SMB2_HEADER, 0, buffer, 0, 4);
            SMBUtil.writeInt4(128, buffer, 20); // nextCommand = 128 (not final)

            testMessage.setBytesRead(10);

            int len = testMessage.decode(buffer, 0, false);

            // Length should include padding for alignment

import jcifs.internal.util.SMBUtil;

@DisplayName("Smb2Lock Test")
class Smb2LockTest {

    private Smb2Lock lock;
    private byte[] buffer;

    @BeforeEach
    void setUp() {
        buffer = new byte[128];
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create lock with valid parameters")

                }

                if (!msg2.getFlag(NtlmFlags.NTLMSSP_NEGOTIATE_128)) {
                    throw new SmbUnsupportedOperationException("Server does not support 128-bit keys");
                }
            }

            this.ntlmsspFlags &= msg2.getFlags();
            final Type3Message msg3 = createType3Message(msg2);
            msg3.setupMIC(this.type1Bytes, token);

        int bufferIndex = offset;

        // Set up test values
        int namedPipeState = 0x02;
        int readDataAvailable = 256;
        int numberOfMessages = 5;
        int messageLength = 128;
        byte[] testData = { (byte) 0xFF, (byte) 0xEE, (byte) 0xDD, (byte) 0xCC, (byte) 0xBB, (byte) 0xAA, (byte) 0x99, (byte) 0x88 };

        // Write values to buffer at offset