International Journal of Network Security & Its Applications (IJNSA)

International Journal of Network Security & Its Applications (IJNSA)

ISSN: 0974 - 9330 (Online); 0975 - 2307 (Print)

http://airccse.org/journal/ijnsa.html

Micro Rotor Enhanced Block Cipher Designed For Eight Bits Micro-Controllers (MREBC)

Ahmed ElShafee, Ahram Canadian University, Egypt

ABSTRACT

The sensor network is a wireless network environment that consists of the many sensors of lightweight and low-power. Authentication between nodes is very vital for network reliability and the integrity of information collected by these nodes. Therefore, encryption algorithm for the implementation of reliable sensor network environments is required to the applicable sensor network. This paper gives a new proposed cryptosystem (MREBC) that is designed for 8 bits microcontroller systems. MREBC uses the concept of rotor enhanced block cipher which was initially proposed by the author in [NRSC 2002] on the first version of REBC. MREBC uses rotors to achieve two basic cryptographic operations; permutation, and substitution. Round key is generated using rotor too, which is used to achieve ciphertext key dependency. Rotors implemented using 8 bits successive affine transformation, which achieves memoryless, normalized ciphertext statistics, and small processing speed trend. The strength of this system is compared with the RIJNDAEL (AES) cipher. MREBC cipher gives excellent results from security characteristics and statistical point of view of. communication efficiency of MREBC is compared with AES through measuring performance by plaintext size, and cost of operation per hop according to the network scale. Arduino microcontroller board is used to implement both MREBC, and AES in order to compare the performance of algorithms. Authors suggests to use MREBC to implement a reliable sensor network environments.

KEYWORDS

8 Bits Microcontroller, block cipher, rotor cipher, brute force attack, Sensor Network. 

Original Source URL: http://airccse.org/journal/nsa/5513nsa03.pdf

Volume Link: http://airccse.org/journal/jnsa13_current.html