A comparative and analytical study on symmetric key cryptography

Science and Technology are updating rapidly. Data are transferred through various communicative mediums. Hence always there been a major requirement of confidentiality and secure authorization of information to prevent the unauthorised access and attacks. Symmetric key cryptography is an integral part of cryptographic technique which ensures high security and confidentiality of data transmitted through the communication channel using a common key for both encryption and decryption. There are so many traditional symmetric key algorithms as well as some proposed algorithms which can provide high confidentiality along with authorized access of data. In this paper we made a comparison analysis of some of those proposed algorithms as well as the traditional algorithms of symmetric cryptography with the merits and demerits of those different types algorithm.