return Map(c.ToTitle, s)
}

// ToValidUTF8 treats s as UTF-8-encoded bytes and returns a copy with each run of bytes
// representing invalid UTF-8 replaced with the bytes in replacement, which may be empty.
func ToValidUTF8(s, replacement []byte) []byte {
	b := make([]byte, 0, len(s)+len(replacement))
	invalid := false // previous byte was from an invalid UTF-8 sequence
	for i := 0; i < len(s); {

    }

    /**
     * Create a handle GUID from existing bytes
     * @param bytes the 16-byte GUID data in little-endian format (SMB wire format)
     */
    public HandleGuid(byte[] bytes) {
        if (bytes.length != 16) {
            throw new IllegalArgumentException("GUID must be 16 bytes");
        }

        // MS-SMB2 specifies little-endian byte ordering for GUID components

     */
    public static final int TRANSFORM_PROTOCOL_ID = 0xFD534D42;

    /**
     * Size of the transform header in bytes
     */
    public static final int TRANSFORM_HEADER_SIZE = 52;

    private final byte[] signature = new byte[16];
    private final byte[] nonce = new byte[16];
    private int originalMessageSize;
    private int flags;
    private long sessionId;

    /**

                SecureKeyManager.secureWipe(keyCopy);
            }
        }
    }

    private static byte[] longToBytes(final long value) {
        final byte[] bytes = new byte[8];
        for (int i = 0; i < 8; i++) {
            bytes[i] = (byte) (value >>> 8 * (7 - i));
        }
        return bytes;
    }

    /**
     * Check if key rotation is needed based on configurable usage limits
     *

    @Test
    @DisplayName("Should set and get lease key")
    void testLeaseKeyAccessors() {
        byte[] newKeyBytes = new byte[] { (byte) 0xFF, (byte) 0xFE, (byte) 0xFD, (byte) 0xFC, (byte) 0xFB, (byte) 0xFA, (byte) 0xF9,
                (byte) 0xF8, (byte) 0xF7, (byte) 0xF6, (byte) 0xF5, (byte) 0xF4, (byte) 0xF3, (byte) 0xF2, (byte) 0xF1, (byte) 0xF0 };
        Smb2LeaseKey newKey = new Smb2LeaseKey(newKeyBytes);

    }

    @Override
    public int size() {
        // Context header: 16 bytes
        // Name: 4 bytes ("RqL2")
        // Padding: 4 bytes (to align data to 8-byte boundary)
        // Data: 52 bytes (lease V2 structure)
        return 16 + 4 + 4 + 52;
    }

    @Override
    public int encode(byte[] dst, int dstIndex) {
        int start = dstIndex;

        // Write context header

            (byte) 49, (byte) 41, (byte) 33, (byte) 25, (byte) 17, (byte) 9, (byte) 1, (byte) 58, (byte) 50, (byte) 42, (byte) 34,
            (byte) 26, (byte) 18, (byte) 10, (byte) 2, (byte) 59, (byte) 51, (byte) 43, (byte) 35, (byte) 62, (byte) 54, (byte) 46,
            (byte) 38, (byte) 30, (byte) 22, (byte) 14, (byte) 6, (byte) 61, (byte) 53, (byte) 45, (byte) 37, (byte) 29, (byte) 21,

    }

    // KGS!@#$%
    static final byte[] S8 = { (byte) 0x4b, (byte) 0x47, (byte) 0x53, (byte) 0x21, (byte) 0x40, (byte) 0x23, (byte) 0x24, (byte) 0x25 };

    /*
     * Accepts key multiple of 7
     * Returns enc multiple of 8
     * Multiple is the same like: 21 byte key gives 24 byte result
     */
    static void E(final byte[] key, final byte[] data, final byte[] e) throws ShortBufferException {

     *
     * @return encoded bytes
     */
    public byte[] encode() {
        // NETWORK_INTERFACE_INFO structure per MS-SMB2 2.2.32.5.1
        // Total size: 152 bytes
        byte[] buffer = new byte[Smb2ChannelCapabilities.NETWORK_INTERFACE_INFO_SIZE];
        ByteBuffer bb = ByteBuffer.wrap(buffer).order(ByteOrder.LITTLE_ENDIAN);

        // Next field (4 bytes) - offset to next entry (0 for last entry)

     */
    public Smb2LeaseKey() {
        this.key = new byte[LEASE_KEY_SIZE];
        RANDOM.nextBytes(this.key);
    }

    /**
     * Create a lease key from existing bytes
     *
     * @param key 16-byte array
     * @throws IllegalArgumentException if key is not 16 bytes
     */
    public Smb2LeaseKey(byte[] key) {
        if (key == null) {