assertTrue(result.contains("000F107F80FF"));
        }

        @Test
        @DisplayName("Large challenge array is handled correctly")
        void testLargeChallengeArray() {
            byte[] challenge = new byte[16];
            for (int i = 0; i < 16; i++) {
                challenge[i] = (byte) i;
            }
            UniAddress dc = mock(UniAddress.class);