• Khushpreet Kaur
• Rajbhupinder Kaur

Cryptography and encryption is emerging field of network security. As it is known fact that security of data is very important aspect and has become the first priority for the organization. So it is very much important that the security methods should not only be strong, but should also be easy to execute and implement. The cryptographic algorithms are categorized into key-oriented and keyless encryption algorithms. The main goal of an encryption algorithm is to provide security against unauthorized attacks. Key—oriented algorithms are very efficient but they are hard to manage as key handling need to be done. Because of the great overhead, keyless algorithms seem to be an attractive option. Security in keyless algorithm is achieved by KUDOS encryption which is a keyless algorithm and provide security one level above key-oriented algorithm. Now, we are going to study the optimal security in KUDOS encryption by adding unique number which saves the resource of smart phones as lot of energy and battery is consumed while generating private and public key.

Cryptography, encryption, decryption, key-oriented algorithm, keyless algorithm, sequence counter, user defined.

"Modified keyless user defined encryption system for Mobile Cloud Computing environment", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.1, Issue 6, page no.400-404, November-2014, Available :http://www.jetir.org/papers/JETIR1406005.pdf

"Modified keyless user defined encryption system for Mobile Cloud Computing environment", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.1, Issue 6, page no. pp400-404, November-2014, Available at : http://www.jetir.org/papers/JETIR1406005.pdf