Hello Sir/Mam,
I am working on mitigation to Side-channel timing based attack for my research in computing subject. As per my knowledge, attackers execute side-channel timing attack by measuring difference between execution time. If time required to execute any program is high or low, on that base they obtain secrete keywords or password (A-Z, a-z, 1-0 and special charactors) by measuring the time.
My idea is If I assign fix value of execution time to every execution then attacker could not find any difference to measure and attack can not happen.
But is it feasible or can I assign such fix value of execution time to CPU?
It depends on the precision of your timing. Unless your machine is dedicated to one task, or it is running a real time Operating system where the execution timing is carefully managed, there can be multiple processes executing including the Operating system itself as well as hardware related delays that can affect the timing of one execution of a task, program or process to the next.
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