Encrypt Hardware Device Based on Cryptographic Algorithm

Information technology has been developing during the past decades, and encryption algorithms are most important to Information technology, in this paper we made some research about some famous international encryption algorithms, such as advanced encryption standard (AES), and Data encryption standard (DES). Smart Cards which are some high-end encryption card are now commonly used all around the world and becoming more and more ubiquitous. We also give a basic discussion of the smart card structure. Encryption algorithms were security enough from the perspective of math, but when realized in hardware, it may possess some electric characteristics, just like electromagnetic or power, which may be used by illegal users to attack the circuit, so the research development of relative resistance technology is important.