import java.security.MessageDigest;

/**
 * This is an implementation of the HMACT64 keyed hashing algorithm.
 * HMACT64 is defined by Luke Leighton as a modified HMAC-MD5 (RFC 2104)
 * in which the key is truncated at 64 bytes (rather than being hashed
 * via MD5).
 */
class HMACT64 extends MessageDigest implements Cloneable {

    private static final int BLOCK_LENGTH = 64;

    private static final byte IPAD = (byte) 0x36;

    }

    @Test
    @DisplayName("Test context size calculation")
    public void testContextSize() {
        int expectedSize = 8 + (3 * 2); // Header + 3 algorithms * 2 bytes each
        assertEquals(expectedSize, context.size());
    }

    @Test
    @DisplayName("Test context with flags")
    public void testContextWithFlags() {

        // that happens, then we will have buffered bytes that are needed by the SSLSocket!
        // This check is imperfect: it doesn't tell us whether a handshake will succeed, just
        // that it will almost certainly fail because the proxy has sent unexpected data.
        if (!socket.source.buffer.exhausted() || !socket.sink.buffer.exhausted()) {
          throw IOException("TLS tunnel buffered too many bytes!")
        }

pkg bufio, method (*Writer) AvailableBuffer() []uint8
pkg bufio, method (ReadWriter) AvailableBuffer() []uint8
pkg bytes, func Cut([]uint8, []uint8) ([]uint8, []uint8, bool)
pkg bytes, func Title //deprecated
pkg crypto/tls, method (*Conn) NetConn() net.Conn
pkg crypto/tls, type Config struct, PreferServerCipherSuites //deprecated
pkg crypto/x509, method (*CertPool) Subjects //deprecated
pkg debug/buildinfo, func Read(io.ReaderAt) (*debug.BuildInfo, error)

    /**
     * Static factory for quota exceeded
     */
    public static SmbResourceException quotaExceeded(int errorCode, long used, long quota) {
        return new SmbResourceException(String.format("Quota exceeded: %d/%d bytes used", used, quota), errorCode, ResourceType.QUOTA,
                quota - used, 1);
    }

    If you want this update with the old behavior use [this interceptor][legacy_interceptor].

 *  Fix: Don't crash decompressing web sockets messages. We had a bug where we assumed deflated
    bytes in would always yield deflated bytes out and this isn't always the case!

 *  Fix: Reliably update and invalidate the disk cache on windows. As originally designed our

    }

    // Write the length. This takes 1 byte if length is less than 128.
    val length = content.size
    if (length < 128) {
      sink.writeByte(length.toInt())
    } else {
      // count how many bytes we'll need to express the length.
      val lengthBitCount = 64 - java.lang.Long.numberOfLeadingZeros(length)
      val lengthByteCount = (lengthBitCount + 7) / 8
      sink.writeByte(0b1000_0000 or lengthByteCount)

        when(mockFile.openUnshared(anyInt(), anyInt(), anyInt(), anyInt(), anyInt())).thenReturn(mockFileHandle);
        lenient().when(mockFileHandle.getInitialSize()).thenReturn(100L); // File already has 100 bytes

        when(mockTreeHandle.send(any(Smb2WriteRequest.class), any())).thenReturn(mockWriteResponse);
        when(mockWriteResponse.getCount()).thenReturn(8);

                break;
            }
        }
        assertTrue(hasNonZero, "Data should have non-zero bytes");

        SecureKeyManager.secureWipe(data);

        // Verify data is wiped
        for (byte b : data) {
            assertEquals(0, b, "All bytes should be zero after wipe");
        }
    }

    @Test
    public void testSecureWipeNull() {
        // Should not throw

	//
	// dataDescriptorLen includes the size of the signature but
	// first read just those 4 bytes to see if it exists.
	if _, err := io.ReadFull(r, buf[:4]); err != nil {
		return err
	}
	off := 0
	maybeSig := readBuf(buf[:4])
	if maybeSig.uint32() != dataDescriptorSignature {
		// No data descriptor signature. Keep these four
		// bytes.
		off += 4
	}
	if _, err := io.ReadFull(r, buf[off:12]); err != nil {
		return err