NtlmUtil.E(p14, NtlmUtil.S8, p21);
            NtlmUtil.E(p21, challenge, p24);
            return p24;
        } finally {
            // Clear the temporary string from memory (best effort)
            if (tempStr != null) {
                tempStr.intern();
            }
        }
    }

    // KGS!@#$%

        // Arrange
        byte[] key14 = hex("01020304050607 11121314151617"); // two 7-byte chunks
        byte[] key7 = Arrays.copyOfRange(key14, 0, 7);
        byte[] data8 = NtlmUtil.S8;
        byte[] out14 = new byte[16];
        byte[] out7 = new byte[8];

        // Act
        NtlmUtil.E(key14, data8, out14);
        NtlmUtil.E(key7, data8, out7);

    private static final Random RANDOM = new Random();

    private static LogStream log = LogStream.getInstance();

    // KGS!@#$%
    private 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

	register["S2"] = riscv.REG_S2
	register["S3"] = riscv.REG_S3
	register["S4"] = riscv.REG_S4
	register["S5"] = riscv.REG_S5
	register["S6"] = riscv.REG_S6
	register["S7"] = riscv.REG_S7
	register["S8"] = riscv.REG_S8
	register["S9"] = riscv.REG_S9
	register["S10"] = riscv.REG_S10
	// Skip S11 as it is the g register.
	register["T3"] = riscv.REG_T3
	register["T4"] = riscv.REG_T4
	register["T5"] = riscv.REG_T5