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SHD-CacheAttackLab
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part2 ver 0.5.0

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ClF3 2024-11-04 21:00:04 +08:00
parent 29b495c6b9
commit 5d0fb9c694
1 changed files with 9 additions and 3 deletions
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6
Part2-FlushReload/attacker.c
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@ -15,6 +15,7 @@
int main() { int main() {
int index = -1; int index = -1;
int flag = -1; int flag = -1;
int maybe_flag= -1;
CYCLES time = -1; CYCLES time = -1;
int offset = 0; int offset = 0;
int new_offset = 0; int new_offset = 0;
@ -36,10 +37,15 @@ int main() {
} }
time = measure_one_block_access_time((ADDR_PTR)buf + offset * 128); time = measure_one_block_access_time((ADDR_PTR)buf + offset * 128);
if(time < CACHE_HIT_THRESHOLD) { if(time < CACHE_HIT_THRESHOLD) {
if(offset == maybe_flag) {
flag = offset; flag = offset;
index = i; index = i;
break; break;
} }
else {
maybe_flag = offset;
}
}
} }
printf("Flag: %d\n", flag); printf("Flag: %d\n", flag);
printf("Time: %d\n", time); printf("Time: %d\n", time);