Research ArticleOpen accessIn the abstractEfficient Realization of S-Box based reduced Residue of Prime Numbers using Virtex-5 and Virtex-6 FPGAsMohammed H. Al MijalliProblem statement: The S-Box transformation is a computationally intensive and important operation of the Advanced Encryption Standard (AES). Approach: This study presents the comparative study between reduced Residue of Prime Numbers and Galois Filed GF (28) based SBoxes using Virtex-5 and Virtex-6 FPGA devices. The implementation of S-Boxes is done using Very High speed integrated circuit Hardware Description Language (VHDL). … …American Journal of Applied Sciences, Vol. 8, Issue 8 · 18 Jul 2011 · 6,975 accessesView PDFCite
Research ArticleOpen accessIn the abstractNew Directions in Cryptanalysis of Block CiphersDavood RezaeiPour, Mohamad Rushdan Md SaidProblem statement: The algebraic expression of the Advanced Encryption Standard (AES) RIJNDAEL S-box involved only 9 terms. The selected mapping for RIJNDAEL S-box has a simple algebraic expression. This enables algebraic manipulations which can be used to mount interpolation attack. Approach: The interpolation attack was introduced as a cryptanalytic attack against block ciphers. This attack is useful for cryptanalysis using … …Journal of Computer Science, Vol. 5, Issue 12 · 31 Dec 2009 · 7,026 accessesView PDFCite
Research ArticleOpen accessIn the abstractMessage Based Random Variable Length Key Encryption AlgorithmHamid Mirvaziri, Kasmiran Jumari Mahamod Ismail, Zurina Mohd HanapiProblem statement: A block ciphers provides confidentiality in cryptography but cryptanalysis of the classical block ciphers demonstrated some old weaknesses grabbing a partial key in any stage of encryption procedure leads to reconstructing the whole key. Exhaustive key search shows that key generation should be indeterminist and random for each round. Matching cipher-text attack shows that larger size of block … …Journal of Computer Science, Vol. 5, Issue 8 · 31 Aug 2009 · 6,804 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnvironmental Factors Influence on Mobile Learning BusinessAlireza Nasiri, Guishi DengProblem statement: Recently, there has been growing interest in m-learning consequently emerging m-learning technology is promising technological and educational business. Nevertheless, m-learning is a new business and the different actors are still trialing by ways of a diversity of business models to overcome in able to achieve a sustainable and profitable place in this market. Numbers of m-learning products providers … …American Journal of Applied Sciences, Vol. 6, Issue 6 · 30 Jun 2009 · 6,967 accessesView PDFCite