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  • Open Access

    ARTICLE

    Encryption Algorithm for Securing Non-Disclosure Agreements in Outsourcing Offshore Software Maintenance

    Atif Ikram1,2,*, Masita Abdul Jalil1, Amir Bin Ngah1, Nadeem Iqbal2, Nazri Kama4, Azri Azmi4, Ahmad Salman Khan3, Yasir Mahmood3,4, Assad Alzayed5

    CMC-Computers, Materials & Continua, Vol.73, No.2, pp. 3827-3845, 2022, DOI:10.32604/cmc.2022.029609

    Abstract Properly created and securely communicated, non-disclosure agreement (NDA) can resolve most of the common disputes related to outsourcing of offshore software maintenance (OSMO). Occasionally, these NDAs are in the form of images. Since the work is done offshore, these agreements or images must be shared through the Internet or stored over the cloud. The breach of privacy, on the other hand, is a potential threat for the image owners as both the Internet and cloud servers are not void of danger. This article proposes a novel algorithm for securing the NDAs in the form of images. As an agreement is… More >

  • Open Access

    ARTICLE

    Hybrid Cloud Security by Revocable KUNodes-Storage with Identity-Based Encryption

    S. Saravanakumar1,*, S. Chitra2

    Computer Systems Science and Engineering, Vol.43, No.3, pp. 985-996, 2022, DOI:10.32604/csse.2022.019508

    Abstract Cloud storage is a service involving cloud service providers providing storage space to customers. Cloud storage services have numerous advantages, including convenience, high computation, and capacity, thereby attracting users to outsource data in the cloud. However, users outsource data directly via cloud stage services that are unsafe when outsourcing data is sensitive for users. Therefore, cipher text-policy attribute-based encryption is a promising cryptographic solution in a cloud environment, and can be drawn up for access control by data owners (DO) to define access policy. Unfortunately, an outsourced architecture applied with attribute-based encryption introduces numerous challenges, including revocation. This issue is… More >

  • Open Access

    ARTICLE

    Triple Key Security Algorithm Against Single Key Attack on Multiple Rounds

    Muhammad Akram1, Muhammad Waseem Iqbal2,*, Syed Ashraf Ali3, Muhammad Usman Ashraf4, Khalid Alsubhi5, Hani Moaiteq Aljahdali6

    CMC-Computers, Materials & Continua, Vol.72, No.3, pp. 6061-6077, 2022, DOI:10.32604/cmc.2022.028272

    Abstract In cipher algorithms, the encryption and decryption are based on the same key. There are some limitations in cipher algorithms, for example in polyalphabetic substitution cipher the key size must be equal to plaintext otherwise it will be repeated and if the key is known then encryption becomes useless. This paper aims to improve the said limitations by designing of Triple key security algorithm (TKS) in which the key is modified on polyalphabetic substitution cipher to maintain the size of the key and plaintext. Each plaintext character is substituted by an alternative message. The mode of substitution is transformed cyclically… More >

  • Open Access

    ARTICLE

    Metaheuristic Lightweight Cryptography for Security Enhancement inInternet of Things

    Mahmoud Ragab1,2,3,*, Ehab Bahaudien Ashary4

    CMC-Computers, Materials & Continua, Vol.72, No.2, pp. 3009-3023, 2022, DOI:10.32604/cmc.2022.025763

    Abstract The advancements made in Internet of Things (IoT) is projected to alter the functioning of healthcare industry in addition to increased penetration of different applications. However, data security and private are challenging tasks to accomplish in IoT and necessary measures to be taken to ensure secure operation. With this background, the current paper proposes a novel lightweight cryptography method for enhance the security in IoT. The proposed encryption algorithm is a blend of Cross Correlation Coefficient (CCC) and Black Widow Optimization (BWO) algorithm. In the presented encryption technique, CCC operation is utilized to optimize the encryption process of cryptography method.… More >

  • Open Access

    ARTICLE

    Light-Weight Present Block Cipher Model for IoT Security on FPGA

    R. Bharathi*, N. Parvatham

    Intelligent Automation & Soft Computing, Vol.33, No.1, pp. 35-49, 2022, DOI:10.32604/iasc.2022.020681

    Abstract The Internet of Things (IoT) plays an essential role in connecting a small number of billion devices with people for diverse applications. The security and privacy with authentication are challenging work for IoT devices. A light-weight block cipher is designed and modeled with IoT security for real-time scenarios to overcome the above challenges. The light-weight PRESENT module with the integration of encryption (E)-decryption (D) is modeled and implemented on FPGA. The PRESENT module has 64-bit data input with 80/128/256-bit symmetric keys for IoT security. The PRESENT module performs16/32/64 round operations for state register and key updation. The design mainly uses… More >

  • Open Access

    ARTICLE

    Implementation of a High-Speed and High-Throughput Advanced Encryption Standard

    T. Manoj Kumar1,*, P. Karthigaikumar2

    Intelligent Automation & Soft Computing, Vol.31, No.2, pp. 1025-1036, 2022, DOI:10.32604/iasc.2022.020090

    Abstract

    Data security is an essential aspect of data communication and data storage. To provide high-level security against all kinds of unauthorized accesses, cryptographic algorithms have been applied to various fields such as medical and military applications. Advanced Encryption Standard (AES), a symmetric cryptographic algorithm, is acknowledged as the most secure algorithm for the cryptographic process globally. Several modifications have been made to the original architecture after it was proposed by two Belgian researchers, Joan Daemen and Vincent Rijment, at the third AES candidate Conference in 2000. The existing modifications aim to increase security and speed. This paper proposes an efficient… More >

  • Open Access

    ARTICLE

    An Efficient Sound and Data Steganography Based Secure Authentication System

    Debajit Datta1, Lalit Garg2,*, Kathiravan Srinivasan3, Atsushi Inoue4, G. Thippa Reddy3, M. Praveen Kumar Reddy3, K. Ramesh5, Nidal Nasser6

    CMC-Computers, Materials & Continua, Vol.67, No.1, pp. 723-751, 2021, DOI:10.32604/cmc.2021.014802

    Abstract The prodigious advancements in contemporary technologies have also brought in the situation of unprecedented cyber-attacks. Further, the pin-based security system is an inadequate mechanism for handling such a scenario. The reason is that hackers use multiple strategies for evading security systems and thereby gaining access to private data. This research proposes to deploy diverse approaches for authenticating and securing a connection amongst two devices/gadgets via sound, thereby disregarding the pins’ manual verification. Further, the results demonstrate that the proposed approaches outperform conventional pin-based authentication or QR authentication approaches. Firstly, a random signal is encrypted, and then it is transformed into… More >

  • Open Access

    ABSTRACT

    Faster RSA Algorithm for Decryption Using Chinese Remainder Theorem

    G.N. Shinde1, H.S. Fadewar2

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.5, No.4, pp. 255-262, 2008, DOI:10.3970/icces.2008.005.255

    Abstract E-business security is an overarching business issues that, based of an analyzed risks, and establishes the threat acceptance and reduction parameters for the safe use of technology. As an overarching issue, e-business security can be thought of as being absolutely fundamental to the effective and efficient use of Information Technology in support of e-business.
    This paper proposed four time faster RSA-CRT algorithm for decryption of data and effective representation of encryption using Chinese Remainder Theorem (CRT) for the data security. The algorithm is implemented in Java source code. More >

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