Investigations Regarding the Keys and Round Functions of AES for Data Security over RF Systems

Data security is a prime requirement of an organization in order to keep their information safe from their competitors. Cryptography technique which includes encryption algorithm and reliable keys are used for the same task. It is used to protect the digital data including financial, telecommunications, and government data. In this paper we analyzed various parameters of encryption techniques/algorithm. We encrypt the plain text by using different key lengths 128,192 and 256. On the basis of encryption time, other parameters can be determined e.g. processing time, round time,throughput etc. It is investigated that if clock frequency increases the throughput also varies.