• Dr.V.Harsha Shastri
• A.Lourdu Rajini Kumari

We need to provide security for the information sent. The objective of cryptography is to make it possible for two persons to exchange messages so that the third person cannot understand. We wanted so that third person even if he has access to the unreadable text cannot interpret the original message. There are number of ways to achieve, but here the proposed method will be concerned with the technique of encoding the text that the receiver can only discover the original message. The original message usually called plain text is converted into cipher text by finding each character in the message and replacing it with another character based on the Fibonacci number and then by Lucas number generated. Multiple encryptions or multiple enciphering refer to encrypting the data more than once to increase security levels. The cipher must be unbreakable so that the encryption scheme remains strong. The proposed encryption/decryption algorithm is loss-less, key-dependent.

Encryption, Decryption, Fibonacci number, Lucas number, Cipher text, Cryptography

"AN APPROACH TO SECURE DATA USING MULTIPLE CIPHERING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.533-536, January-2019, Available :http://www.jetir.org/papers/JETIR1901066.pdf

"AN APPROACH TO SECURE DATA USING MULTIPLE CIPHERING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp533-536, January-2019, Available at : http://www.jetir.org/papers/JETIR1901066.pdf