Estudo do Padrão Avançado de Criptografia AES - Advanced Encryption Standard

This paper shows the implementation of cryptographic algorithm Advanced Encryption Standard (AES). The choice of AES algorithm considered the fact that it is the current advanced encryption standard, being selected after a long contest where various algorithms were cryptoanalized by the cryptology community. Furthermore, the AES was designed to allow expansion of the key when necessary, allow implementation in software and in hardware and is free, allowing its use in many applications without requiring the payment royalties.