Propose New Encryption Method using New Proposed Functions depends on Diffusion and Confusion properties

Abstract

Internet is extremely integrated to people’s lives and is starting to become a measure of social manners. Data security plays a significant part in the protection of data and resources of the organization, it is typical to hear news of security cases, like web-site defacements, server hacking and data exposure. The proposed system aims to improve E-services security. The most important element to deal with any Electronic site is security; in this paper design a Proposed New Cryptosystem Algorithm by using the S-Box of serpent algorithm and S-Box of GOST algorithm. As an assessment for the Proposed New Cryptosystem Algorithm, This study utilized 2 testing sets (Basic 5 Statistical Tests and NIST Tests), the cipher-text of the Proposed New Cryptosystem Algorithm is tested with the use of the Basic 5 Statistical Tests and all tests is successful 100 % on many samples. The cipher-text of the Proposed New Cryptosystem Algorithm is tested by using the 16 NIST Tests; they could pass 13 of 16 tests, which make the proposal of a sufficient proportion of randomizing. One more assessment criteria that have been utilized in this study are the encryption runtime. The Proposed New Cryptosystem Algorithm is identified by an increase in complexity and mild decrease in encryption and decryption runtime comparison with (AES and DES) algorithms, but slightly increases comparison with GOST algorithm.