Data integrity in a processor is crucial to ensure that computations are processed without errors, preserving the consistency and reliability of the results. This is especially important in applications such as automotive, aerospace, and other critical sectors. Modern processor architectures have been shown to be vulnerable to fault injection attacks, which involve injecting errors into the circuit using simultaneous laser beams that target single or multiple data bits to compromise their integrity and extract sensitive information. This method has proven effective over the past decade through the observation of faulty behavior. Designing countermeasures against fault injection attacks has become essential to ensure data integrity, particularly with the increasing use of open-source implementations such as RISC-V, where the attacker has full knowledge of the architecture.