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50 results for “Encryption/Decryption”
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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 · 6,810 accessesView PDFCite
Research ArticleOpen accessIn the abstractA New Computation Algorithm for a Cryptosystem Based on Lucas FunctionsMohamed Othman, Esam M. Abulhirat, Zulkarnain Md Ali et al.Most of public-key cryptosystems rely on one-way functions. The cryptosystems can be used to encrypt and sign messages. The LUC Cryptosystem is a cryptosystem based on Lucas Functions. The encryption process used a public key which was known publicly and the decryption used a private key which was known only by sender and receiver of the messages. The performance of … …Journal of Computer Science, Vol. 4, Issue 12 · 31 Dec 2008 · 6,941 accessesView PDFCite
Research ArticleOpen accessIn the abstractRounding Theorem the Possibility of Applying the Cryptosystems on the Decimal NumbersRand Alfaris, Muhamad Rezal Kamel Ariffin, Mohamed Rushdan Md SaidThe possibility of using the decimal numbers in cryptography as the base of the encryption and decryption is proposed by introducing the "Rounding Theorem". Until now, cryptosystems are used the integer numbers to avoid the fractions of the decimal numbers. That is to avoid losing the original plaintext after the decryption. This theorem is proved that there is no lost … …Journal of Mathematics and Statistics, Vol. 4, Issue 1 · 31 Mar 2008 · 7,210 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Block Cipher using Feistal's Approach Involving Permutation and Mixing of the Plaintext and the Additive Inverse of Key MatrixAruna Varanasi, S. U. KumarIn this research, we have developed a block cipher for a block of size 112 bits by using an iterative method involving a permutation of the plaintext and the subkeys generated in each iteration. Here we have represented the plaintext as a matrix of f size 14×8, comprising binary bits. In the process of encryption, we have used a key … …Journal of Computer Science, Vol. 4, Issue 2 · 28 Feb 2008 · 7,112 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Large Block Cipher Using Modular Arithmetic Inverse of a Key Matrix and Mixing of the Key Matrix and the PlaintextV. U.K. Sastry, S. Udaya Kumar, A. Vinaya babuIn this paper, we have developed a block cipher by applying an iterative method. In the process of encryption, we have used a key matrix (K) in which all the elements are binary bits. In the process of decryption, we have utilized the modular arithmetic inverse (K-1). In the process of encryption, the elements of the plaintext and the elements … …Journal of Computer Science, Vol. 2, Issue 9 · 30 Sep 2006 · 6,801 accessesView PDFCite
Research ArticleOpen accessIn the abstractA New Type of Network Security Protocol Using Hybrid Encryption in Virtual Private NetworkingE. Ramaraj, S. KarthikeyanToday wireless communications is acting as a major role in networks. Through year-end 2006, the employee's ability to install unmanaged access points will result is more than 50% of enterprises exposing sensitive information through the wireless virtual private networks (VPN). It enables you to send the data between two computers across a shared or public network in a manner that … …Journal of Computer Science, Vol. 2, Issue 9 · 30 Sep 2006 · 6,792 accessesView PDFCite
Research ArticleOpen accessIn the abstractDeveloping a Secure Web Service Architecture for SVG Image DeliverySabah Mohammed, Jinan Fiaidhi, Hamada Ghenniwa, Marshall HahnWeb Services are substantially growing and become vital for businesses and organizations. A major concern, especially for mission-critical applications is Security. This study focuses on developing Scalable Vector Graphics (SVG) as Web services. In particular, we develop a service-oriented architecture that securely manages SVG Web services using the intermediary design pattern. In the proposed architecture we introduced two kinds of … …Journal of Computer Science, Vol. 2, Issue 2 · 28 Feb 2006 · 6,656 accessesView PDFCite
Research ArticleOpen accessIn the abstractOn 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 · 6,867 accessesView PDFCite
Research ArticleOpen accessIn the abstractBlind Decryption and Privacy ProtectionMohammed Al-Fayoumi, Sttar AboudBlind decryption is an efficient way of protecting customer’s privacy in online marketing over the Internet (i.e. Hiding information about which goods a user purchases from the vendor). In this study, the RSA based blind decryption is simply transposed from an identical protocol as the Chaum’s blind signature scheme and the blind decryption protocol for the Elgamal encryption scheme is … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 7,023 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordPrimary Color Based Numerous Image Creation in Visual Cryptography with the Help of Grasshopper Algorithm, Artificial Neural Network and Elliptic Curve CryptographySurajit Goon, Debdutta Pal, Souvik DihidarThe two primary restrictions of visual cryptography methods, contract, and security are well-known. Visual cryptography is considered secure if no share reveals information about the secure picture and this image is unreachable when shares are combined. Recursion can be used in a visual cryptography method to ensure the integrity of both arguments. Sometimes, the many shares are generated illogically in … …Journal of Computer Science, Vol. 18, Issue 5 · 19 May 2022 · 6,283 accessesView PDFCite