Fix the issue that array size exceed the boundary

input_data exceed its boundary which make classes array is not randomized. After modification, the trace 17 can't pass but this makes sence because implementation of precentiles should make the dudect have less leakage durability.
paul90317 · May 10, 2023 · ed538f8 · ed538f8
1 parent e413da0
commit ed538f8
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/dudect/constant.c b/dudect/constant.c
@@ -50,7 +50,7 @@ void prepare_inputs(uint8_t *input_data, uint8_t *classes)
 {
     randombytes(input_data, N_MEASURES * CHUNK_SIZE);
     for (size_t i = 0; i < N_MEASURES; i++) {
-        classes[i] = rand() & 1;
+        classes[i] = randombit();
         if (classes[i] == 0)
             memset(input_data + i * CHUNK_SIZE, 0, CHUNK_SIZE);
     }

diff --git a/dudect/fixture.c b/dudect/fixture.c
@@ -155,7 +155,7 @@ int64_t before_ticks[N_MEASURES];
 int64_t after_ticks[N_MEASURES];
 int64_t exec_times[N_MEASURES];
 uint8_t classes[N_MEASURES];
-uint8_t input_data[N_MEASURES];
+uint8_t input_data[N_MEASURES * CHUNK_SIZE];
 FILE *dudect_out;
 static report_state_t dudect_main(int mode)
 {