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In 1997, NIST proposed the Advanced Encryption Standard (AES) method into the U.S. Federal Government. They proposed the formal goal of this project to overcome the lack of encryption security in the earlier well-known Data encryption standard (DES) algorithm. The algorithm consists of advanced encryption key management, data validation, and compliance. The AES algorithm can use 128, 192, and 256 bits cryptographic keys to encrypt and decrypt data in blocks of 128 bits. Key length increases the execution time of both encryption and decryption. The encryption phases brake-down into three major phases: Initial round, Main round, and final round.