According to Kocher's 1996 paper what is required to launch a successful timing attack?

According to Kocher's 1996 paper, a successful timing attack requires precise measurements of the time it takes for a cryptographic operation to complete. This involves executing the operation multiple times to gather timing data and identifying variations that correlate with specific input values or secret keys. Additionally, the attacker must have the ability to control or influence the input to the cryptographic function, allowing them to deduce information about the key based on timing discrepancies.