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73 articles for “Cr-Substitution”
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Research ArticleOpen accessEvery word in the titleA HYBRID CRYPTOSYSTEM USING VARIABLE LENGTH SUB KEY GROUPS AND BYTE SUBSTITUTIONAdi Narayana Reddy Kaipa, Vishnu Vardhan Bulusu, Ramakrishna Reddy Koduru, Durga Prasad KavatiHill cipher is developed using simple linear transformation. It is vulnerable to known-plaintext attack and there exist several methods in the direction of linear transformation to overcome the problems. HCM-EE is an improved method using Eigen value but it is linear and too many mathematical operations. In this study an attempt has been made to introduce nonlinearity to the linear … …Journal of Computer Science, Vol. 10, Issue 2 · 13 Nov 2013 · 6,871 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGenetic Algorithm and Tabu Search Attack on the Mono-Alphabetic Substitution Cipher in Adhoc NetworksA. K. Verma, Mayank Dave, R. C. JoshiWith exponential growth of networked system and application such as e-Commerce, the demand for effective Internet security is increasing. Cryptology is the science and study of systems for secret communication. In consists of two complementary fields of study: cryptography and cryptanalysis. This study presents a cryptanalysis method based on Genetic Algorithm and Tabu Search to break a Mono-Alphabetic Substitution Cipher … …Journal of Computer Science, Vol. 3, Issue 3 · 31 Mar 2007 · 7,254 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOn Partial Linearization of Byte Substitution Transformation of Rijndael-The AESY. Talwar, C. E.V. Madhavan, Navin RajpalRijndael-The AES[1-3] is 128-bit block cipher based on an elegant algebraic structure over F28. This cipher employs a simple approach to its substitution, permutation (SP) operations. We take a close look at its internals; the byte substitution transformation function is the only non-linear function in Rijndael - The AES. This transformation comprises of two steps operating on each byte. Here … …Journal of Computer Science, Vol. 2, Issue 1 · 31 Jan 2006 · 6,861 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCurrency Substitution in TurkeyIsmail H. Genc, Hasan Sahin, Turan ErolWe investigated whether the recent depreciations in the Turkish currency (Lira) resulted in the currency substitution away from Lira by using quarterly data over the period from 1987:1 to 2000: 2 with M1 and M2 monetary aggregates and income, interest rate and exchange rate. Other than the variety of monetary aggregates, we tried different ways of including the interest rate … …American Journal of Applied Sciences, Vol. 2, Issue 5 · 31 May 2005 · 6,968 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Influence of Partial Substitution of Potassium by Sodium on the Growth Effect of SugarcaneChao Zheng, Yong-Xiang Huang, Jin Li et al.The effects of different potassium and sodium levels on the growth of Taisugar No. 22 (ROC22) were studied by potted nutrient solution-sand culture experiment in this paper. The results showed that under low potassium stress (0 mmol/L) supply, the proper application of sodium could significantly promote photosynthesis of sugarcane and dry matter accumulation, reduce root shoot ratio and promote shoot … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 2 · 12 Jun 2018 · 11,314 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOn the Enlargement of Robust Region of Chaotic Tent Map for the Use in Key Based Substitution-Box (S-Box)Muhammad Asif Khan, Varun JeotiRobust chaotic maps with wide robust region are favored in cryptography as it extends the key length. Chaotic tent map has robust chaos for control parameter μ = 2. Perturbation of control parameter values beyond control parameter 2, results in orbit diverging towards infinity and trajectories vanish. Thus, to avoid trajectories diverging to infinity and to keep trajectories chaotic beyond … …Journal of Computer Science, Vol. 11, Issue 3 · 19 Apr 2015 · 6,934 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA NOVEL SUBSTITUTION BOX DESIGN FOR HUMMING BIRD-2 AGAINST SIDE CHANNEL ATTACKT. Blesslin Sheeba, P. RangarajanThe side-channel attacks are one of the effortless and commanding attacks against cryptographic implementation and their intention vary from protocols, modules, primitives and system. As a result of this attack, a serious threat to the security of cryptographic module was encountered. In effect, realization of the cryptographic algorithm has to take some countermeasure to resist against this type of attacks. … …Journal of Computer Science, Vol. 10, Issue 9 · 23 Apr 2014 · 6,590 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA Block Cipher Algorithm for Multimedia Content Protection with Random Substitution using Binary Tree TraversalP. Vidhya Saraswathi, M. VenkatesuluMany people consume multimedia content (images, music, movie) on portable devices like DVD player, MP3 player, Portable Multimedia Player and also through Internet. Problem statement: The conventional algorithms such as DES and AES cannot be used directly in multimedia data, since multimedia data are repeatedly have high redundancy, large-volumes and require real-time operations, such as displaying, cutting, copying, bit-rate conversion … …Journal of Computer Science, Vol. 8, Issue 9 · 15 Aug 2012 · 7,694 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Sr Substitution on Structure and Thermal Diffusivity of Ba1-xSrxTiO3 CeramicS.A. Halim, Z.A. Talib, Firas K. Mohamad Al-Asfoor et al.Problem statement: The aim of this research was to study the effect of Sr substitution on structure and thermal diffusivity of Bal-xSrxTiO3 ceramic at room temperature. Approach: Structural and thermal diffusivity of Ba1-xSrxTiO3 were studied by performing X-ray diffraction and photoflash measurements. The effects of Sr substitution on the structure and on the thermal diffusivity of Ba1-xSrxTiO3 (0≤x≤1) were investigated. … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 8,773 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInvestigation the Substitution Capability of Oilseeds in Cropping PatternMahmoud Daneshvar Kakhki, S. Youssefzade, Hamideh Ghodrati AzadiProblem statement: Farm activity is a risky activity special in less developed countries, so all decisions and activities are affected by this phenomenon. Consideration of risk either helps to elimination of deviations in result of model or preparing tools for evolution of some policies that the aim of them is reducing the risk for farmers. Oil seed are the second … …American Journal of Applied Sciences, Vol. 6, Issue 12 · 31 Dec 2009 · 7,177 accessesView PDFCite