The rapid growth of network communication system and the popularity of Internet have brought changes in the way of communication and entail high risk of breach in information security. Cryptography is one of the ways to provide security on electronic documents. In this paper, we propose a new symmetric block cipher, with 256-bit block size and 128-bit key length in ECB mode produces higher avalanche effect and reduces time complexity. The technique is implemented in C language.
Avalanche Effect, Block Cipher, ECB mode, Private Key
