Mohsen Machhout

Learn More
Cellular Automata (CAs) have been applied successfully to several physical systems, processes and scientific problems that involve local interactions, such as image processing, data encryption and byte error correcting codes. In this paper, we analyze the cellular automata, and we propose a reconfigurable cryptosystem based on 2-D Von Neumann cellular(More)
—The cipher block chaining (CBC) block cipher mode of operation presents a very popular way of encrypting which is used in various applications. In previous research work, we have mathematically proven that, under some conditions, this mode of operation can admit a chaotic behavior according to Devaney. Proving that CBC mode is chaotic is only the beginning(More)
In asymetric cryptography, Elliptic Curve Cryptography (ECC) is the fastest in term of computation and the strongest in term of security. It can be used in message encryption/decryption, digital signature or key exchange. ECC can be implemented in hard over binary field GF (2 n) or in soft over prime field GF (p). This paper presents an efficient software(More)
The arithmetic in a finite field constitutes the core of Public Key Cryptography like RSA, ECC or pairing-based cryptography. This paper discusses an efficient hardware implementation of the Coarsely Integrated Operand Scanning method (CIOS) of Montgomery modular multiplication combined with an effective systolic architecture designed with a Two-dimensional(More)