AES T-Box protected against single fault attacks

Cryptography is one of the tools to guarantee security attributes such as: confidentiality, integrity, availability and non-repudiation of information. The AES is one of the most widely used block symmetric encryption algorithms used today and numerous cryptographic solutions and devices can be found. Collateral channel attacks in specific DFA as well as the methods of inducing failures in hardware devices are becoming more frequent so applying countermeasures against this situation becomes indispensable to maintain the security requirements. This work aims to apply a countermeasure against simple failure, which are the most frequent failure models to an implementation of AES using the T-Box variant developed for MicroBlaze. The countermeasure was modified to be able to adapt it to the AES variant of the component and it was possible to maintain the effectiveness of the countermeasure, in addition it was evidenced an increase in the use of memory in 13 % and an increase of the execution time in a relation of 3 times the initial speed of the component.