• MEERA ROSE JOSEPH
• KUKKU GEORGE
• MARIYA RAJU
• RAISA MOL K.A

Cryptography is about conducting and analysing protocols which prevent the third parties from reading private messages. In this paper we analyse different symmetric ciphers and make a comparison study and find out most efficient ciphers among them. The criteria used for comparison is the degree of security and difficulty in the procedure of encryption and decryption. By analysing the degree of security and difficulty in the procedure in cryptography we arrive at a conclusion by finding out the most efficient cipher among the once consider.

Cryptography, protocols, ciphers, symmetric ciphers, encryption, decryption

"AN ANALYSIS INTO THE EFFICIENCY OF SYMMETRIC CIPHERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.348-351, July-2018, Available :http://www.jetir.org/papers/JETIR1807056.pdf

"AN ANALYSIS INTO THE EFFICIENCY OF SYMMETRIC CIPHERS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp348-351, July-2018, Available at : http://www.jetir.org/papers/JETIR1807056.pdf