Resources

This page contains all the resources required for the Side-Channel Lab.

Practicals

The VMs are the same as for the Runtime Security Lab.

The histogram does not work!
There are multiple things you can try
- Ensure that the power is plugged into your laptop and that it is not running on battery
- Pin the program to one CPU core:
```
taskset 0x2 ./binary
```
  Try different cores.
- Make sure all cores run on full speed:
```
cpupower -c all set -b 0
```
  Alternatively, try
```
cpupower frequency-set -g performance
```
Spectre/Meltdown does not work!
In addition to the above things, try to cause a lot of interrupts. You can generate interrupts by running
```
stress -i 1 -d 1
```
Play around with the numbers.
Spectre works but Meltdown does not!
For Meltdown, KPTI and KASLR has to be disabled. Ensure that you pass
```
nopti nokaslr
```
to your boot commandline (e.g., in the GRUB menu, or by editing "/etc/default/grub":
```
GRUB_CMDLINE_LINUX_DEFAULT="nosplash nopti nokaslr"
```
I get a lot of spurious cache hits!
This happens in some VMs. It is best to run the attacks on a native Linux machine.