private final int d;

    // Four 64-bit words of internal state.
    // The initial state corresponds to the ASCII string "somepseudorandomlygeneratedbytes",
    // big-endian encoded. There is nothing special about this value; the only requirement
    // was some asymmetry so that the initial v0 and v1 differ from v2 and v3.
    private long v0 = 0x736f6d6570736575L;
    private long v1 = 0x646f72616e646f6dL;

      val newKey = key?.lowercase(US)
      newAuthParams[newKey] = value
    }
    this.authParams = newAuthParams.unmodifiable()
  }

  /** Returns a copy of this charset that expects a credential encoded with [charset]. */
  fun withCharset(charset: Charset): Challenge {
    val authParams = this.authParams.toMutableMap()
    authParams["charset"] = charset.name()
    return Challenge(scheme, authParams)
  }

    // Base64 encoded Type 1 message: NTLMSSP, Type 1, flags=0x00088207
    // Domain="DOMAIN", Workstation="WORKSTATION"
    private final String type1MessageBase64 = "TlRMTVNTUAABAAAABzIAAAYABgArAAAACwALACAAAABET01BSU5XT1JLU1RBVElPTg==";

    // Base64 encoded Type 3 message: NTLMSSP, Type 3
    // User: "user", Domain: "DOMAIN", Workstation: "WORKSTATION"

        transformHeader.setFlags(0x0001);
        transformHeader.setSessionId(testSessionId);

        byte[] buffer = new byte[52];

        // When
        int encoded = transformHeader.encode(buffer, 0);

        // Then
        assertEquals(52, encoded);

        // Verify protocol ID (first 4 bytes) - 0xFD534D42 in little-endian
        assertEquals((byte) 0x42, buffer[0]);
        assertEquals((byte) 0x4D, buffer[1]);

        Encdec.enc_uint64le(currentDate.getTime(), buffer, 0);
        long decoded = Encdec.dec_uint64le(buffer, 0);

        // Then
        assertEquals(currentDate.getTime(), decoded, "Encoded and decoded time should match");
    }

    @Test
    @DisplayName("Should encode and decode UUIDs")
    void testUUIDOperations() {
        // Given

				var spHdr block
				sp2 = formatSPD(sp2, spHdr.Sparse())
				spb = append(spb, spHdr[:]...)
			}

			// Update size fields in the header block.
			realSize := hdr.Size
			hdr.Size = 0 // Encoded size; does not account for encoded sparse map
			for _, s := range spd {
				hdr.Size += s.Length
			}
			copy(blk.V7().Size(), zeroBlock[:]) // Reset field
			f.formatNumeric(blk.V7().Size(), hdr.Size)

        int alignmentBytes = 0;
        if (startIndex % 2 != 0) {
            alignmentBytes = 1; // Need 1 byte of padding for 2-byte alignment
        }

        // The value 0xCD should be encoded as a 16-bit value (0x00CD) in little-endian
        byte[] bufferData = buf.getBuffer();
        assertEquals((byte) 0xCD, bufferData[startIndex + alignmentBytes], "Least significant byte should be first");

  public val body: ByteString?,
  /** The total size of the body of this request (before truncation).*/
  public val bodySize: Long,
  /**
   * The sizes of the chunks of this request's body, or null if the request's body was not encoded
   * with chunked encoding.
   */
  public val chunkSizes: List<Int>?,
  /**
   * The failure MockWebServer recorded when attempting to decode this request. If, for example,

            // This appears to be a bug in the implementation, but we test the actual behavior
            assertEquals(6, encodedSize); // actual encoded size: 2 bytes count + 2*2 bytes for ciphers
            assertEquals(2, buffer[0]); // cipher count (little endian)
            assertEquals(0, buffer[1]);
            assertEquals(1, buffer[2]); // AES128_CCM (little endian)

        final byte[] mechanismListMIC = this.mechContext.calculateMIC(ml);
        if (log.isDebugEnabled()) {
            log.debug("Out Mech list " + Arrays.toString(lm));
            log.debug("Out Mech list encoded " + Hexdump.toHexString(ml));
            log.debug("Out Mech list MIC " + Hexdump.toHexString(mechanismListMIC));
        }
        return mechanismListMIC;
    }