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Image encryption scheme based on block-based confusion and multiple levels of diffusion

IET COMPUTER VISION 2016年第6期10卷 593-602页

作者： Murugan, Brindha Gounder, Ammasai Gounden Nanjappa Natl Inst Technol Dept Comp Sci & Engn Tiruchirappalli Tamil Nadu India Natl Inst Technol Dept Elect & Elect Engn Tiruchirappalli Tamil Nadu India

This study proposes a chaos-based image encryption scheme using Henon map and Lorenz equation with multiple levels of diffusion. The Henon map is used for confusion and the Lorenz equation for diffusion. Apart from the Lorenz equation, another matrix with the same size as the original image is generated which is a complex function of the original image. This matrix which is configured as a diffusion matrix permits two stages of diffusion. Due to this step, there is a strong sensitivity to input image. This encryption algorithm has high key space, entropy very close to eight (for grey images) and very less correlation among adjacent pixels. The highlight of this method is the ideal number of pixels change rate and unified average changing intensity it offers. These ideal values indicate that the encrypted images produced by this proposed scheme are random-like. Further, a cryptanalysis study has been carried out to prove that the proposed algorithm is resistant to known attacks.

关键词： cryptography matrix algebra image processing image encryption scheme block based confusion multiple levels of diffusion Lorenz equation Henon map complex function diffusion matrix encryption algorithm adjacent pixels

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A PRISMA-compliant systematic review and analysis on color image encryption using DNA properties

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COMPUTER SCIENCE REVIEW 2018年第Aug.期29卷 14-20页

作者： Sokouti, Massoud Sokouti, Babak Mashhad Univ Med Sci Nucl Med Res Ctr Mashhad Iran Tabriz Univ Med Sci Biotechnol Res Ctr Tabriz Iran

During recent years, various encryption algorithms have been proposed for color image encryption based on DNA encoding. Image encryption is one of the most important areas of research which has taken attentions of researchers all over the world that is applicable in transmitting medical images over the insecure communication channels. In this study, a systematic review on DNA based encryption algorithms solely developed for RGB color images is performed in the period of 2000 to 2017. The comparison results on 11 included studies in terms of key space, correlation coefficient, NPCR, UACI, and information entropy showed that there were no significant improvements among the encryption algorithms using the Lena image. In conclusion, for assessing the performance of these kinds of encryption algorithms, development of large sets of benchmark image databases along with publicly available source codes or web servers are highly essential. (c) 2018 Elsevier Inc. All rights reserved.

关键词： Color image encryption algorithm DNA properties Cryptography Security Entropy

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Data encryption algorithms for Internet-based Real-Time Systems

Data Encryption Algorithms for Internet-based Real-Time Syst...

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2004 International Symposium on Distributed Computing and Applications to Business, Engineering and Science

作者： Li Hongyan~(1,2),Shuang H.Yang~(1,3),and Tan LianSheng~1 1 Department of Computer Science,Central China Normal University,Wuhan,China. 2 Department of Computer and Electronic Science,Hubei University of Economics,Wuhan,China 3 Department of Computer Science,Loughborough University,Loughborough,Leicestershire LE113TU,UK

In recent years,the Intemet has proved to be a powerful tool for real-time ***,security risk of the Intemet communication still stops people to bring the real-time application into a *** work has so far been done in developing a data encryption algorithm for Intemet-based real-time *** order to satisfy the security requirements of Internet-based real-time systems,two hybrid data encryption algorithms are *** is the combination of the Advanced encryption Standard(AES) and the most popular public-key cryptography(RSA);the other is the combination of the AES and Secure Sockets Layer(SSL). The end-to-end encryption latency of different algorithms is investigated to show the efficiency of the two new algorithms for Internet-based real-time applications.

关键词： real-time Systems encryption algorithm AES RSA SSL

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Dynamical Analysis of Novel Memristor Chaotic System and DNA encryption Application

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IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF ELECTRICAL ENGINEERING 2020年第1期44卷 449-460页

作者： Sun, Junwei Yang, Qinfei Wang, Yanfeng Zhengzhou Univ Light Ind Coll Elect & Informat Engn Zhengzhou 450002 Peoples R China

In this paper, a new circuit which can include a capacitor, an inductor and a novel nonlinear memristor is designed. Complex dynamics and special characters are investigated by changing three parameters for the designed chaotic system, whose circuitry realization has been implemented to show its reliability. A novel chaotic behavior which is similar with quasiperiodic oscillation is produced. In addition, a novel image encryption method based on memristor chaotic system and DNA computing is proposed. The experimental results show that the algorithm not only can resist different kinds of attack, but also can improve good encryption effect.

关键词： Memristor DNA subsequence encryption algorithm

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Architecture of multicast centralized key management scheme using quantum key distribution and classical symmetric encryption

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EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS 2014年第8期223卷 1711-1728页

作者： Metwaly, A. F. Rashad, M. Z. Omara, F. A. Megahed, A. A. Al Zahra Coll Women Dept Informat Technol Muscat Oman Mansoura Univ Fac Comp & Informat Sci Mansoura Egypt Cairo Univ Fac Comp & Informat Sci Cairo Egypt Cairo Univ Fac Engn Cairo Egypt

Multicasting refers to the transmission of a message or information from one sender to multiple receivers simultaneously. Although encryption algorithms can be used to secure transmitted messages among group members, still there are many security aspects for designing a secured multicast cryptosystem. The most important aspects of Multicasting are key generation and management. The researchers have proposed several approaches for solving problems of multicast key distribution and management. In this paper, a secure key generation and distribution solution has been proposed for a single host sending to two or more (N) receivers using centralized Quantum Multicast Key Distribution Centre "QM(KDC)" and classical symmetric encryption. The proposed scheme uses symmetric classical algorithms for encryption and decryption transmitted messages among multicast group members, but the generated keys which are used for authentication, encryption and decryption also play an important role for designing a secured multicast cryptosystem come from QKD protocols. Authentication verified using EPR entangled Photons and controlled-NOT gate. Multiple requests for initialization as well for transmitting sensitive information handled through priority and sensitivity levels. Multiple members' communication is achieved with full or partial support of QM(KDC).

关键词： transmission message information Messages Building construction ARCHITECTURE encryption algorithm Decryption Multiple Receiver Quantum key distribution symmetric cryptography Multicast cryptography Sensitivity Levels Problem solving

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Use of elliptic curve cryptography for multimedia encryption

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IET INFORMATION SECURITY 2013年第2期7卷 67-74页

作者： Tawalbeh, Lo'ai Mowafi, Moad Aljoby, Walid Jordan Univ Sci & Technol Dept Comp Engn Cryptog Hardware & Informat Secur CHiS Lab Irbid Jordan Jordan Univ Sci & Technol Dept Network Engn & Secur Irbid Jordan

The unique characteristics of the elliptic curve cryptography (ECC) such as the small key size, fast computations and bandwidth saving make its use attractive for multimedia encryption. In this study, the ECC is used to perform encryption along with multimedia compression, and two ECC-based encryption algorithms are introduced and applied before and during compression. The first algorithm performs selective encryption on the transform coefficients during compression, whereas the second algorithm achieves perceptual encryption based on selective bit-plane encryption before compression. The results of applying ECC to multimedia encryption are presented and analysed with respect to the requirements of multimedia encryption: the encryption efficiency, compression efficiency, codec compliance and security level. It is shown that ECC is highly efficient and does not affect the compression efficiency, and accordingly can meet the multimedia encryption requirements.

关键词： Security level encryption algorithm cryptography MULTI-MEDIA SYSTEM compression COMPRESSION EFFICIENCY

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Image encryption using eight dimensional chaotic cat map

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EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS 2014年第8期223卷 1611-1622页

作者： Ganesan, K. Murali, K. VIT Univ TIFAC CORE Vellore Tamil Nadu India Anna Univ Dept Phys Chennai Tamil Nadu India

In recent years, a large number of discrete chaotic cryptographic algorithms have been proposed. However, most of them encounter some problems such as lack of robustness and security. In this paper, we introduce a new image encryption algorithm based on eight-dimensional (nonlinear) chaotic cat map. encryption of image is different from that of texts due to some intrinsic features of image such as bulk data capacity and high redundancy, which are generally difficult to handle by traditional methods. In traditional methods the key space is small and the security is weak. The proposed algorithm tries to address these problems and also tries to enhance the encryption speed. In this paper an eight dimensional chaotic cat map is used to encrypt the intensity values of pixels using lookup table method thereby significantly increasing the speed and security of encryption. The proposed algorithm is found to be resistive against chosen/known-plaintext attacks, statistical and differential attacks.

关键词： discrete chaotic cryptographic encryption algorithm discrete element DIMENSIONAL Image data capacity Security cryptography maps trees (mathematics)

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Data dependent rotations, a trustworthy approach for future encryption systems/ciphers: low cost and high performance

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COMPUTERS & SECURITY 2003年第7期22卷 585-588页

作者： Sklavos, N Koufopavlou, O Univ Patras Dept Elect & Comp Engn GR-26500 Patras Greece

This work focuses an alternative direction of cryptography, based on Data Dependent Rotations (DDR). This methodology gives many promises for secure communication networks of the next years. DDR transformations have attracted the interest of researchers, and a great number of new ciphers have been developed. These encryption algorithms are intended to be used in all the applications of present and future. The article summarizes the key issues for this new approach and presents both performance and implementation cost of DDR implementations. The purpose of this work is to provide a state of-the-art overview on DDR ciphers, which are proved a trustworthy applied methodology for modem cryptography.

关键词： encryption algorithm HIGH-PERFORMANCE Passwords cryptography crop rotation Rotations networks(communications)

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The new lightweight encryption mechanism for large media signal processing system in global content delivery network

The new lightweight encryption mechanism for large media sig...

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International Conference on Information Technology and Computer Application Engineering (ITCAE)

作者： Heo, Juseung Park, Chulwoo Kim, Keecheon Ok, Kisang Konkuk Univ Dept Comp Sci & Engn Seoul South Korea KT Corp Seoul South Korea

ISBN: (纸本)9781315813288;9781138000797

GCDN (Global Content Delivery Networks) is supposed to provide contents quickly through the nearest cache server which can reduce the load of a cache server as the user's contents request. Recently, high-capacity media stream services have been increasing because of explosive demand, but these are only speedy consideration ones mostly. These services have no security mechanism which is extremely critical on their works in contents delivery network. For this reason, If the whole media stream data is encrypted for the security consideration, it is not only damages features of GCDN services characteristic (fast providing of contents), but also wastes network resources inefficiently. Therefore, this research uses Selective encryption, one of the stream encryption techniques. Additionally, we implement the new lightweight encryption algorithm for the Large Media Signal Processing System (LMSPS). We simulate and compare between the new lightweight encryption algorithm and the previous encryption algorithm.

关键词： Global Content Delivery Network encryption algorithm Security System Large Media Signal Processing System

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PWLCM Based Image encryption Through Compressive Sensing

PWLCM Based Image Encryption Through Compressive Sensing

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IEEE Recent Advances in Intelligent Computational Systems (RAICS)

作者： Abhishek George, Sudhish N. Deepthi, P. P. Natl Inst Technol Dept Elect & Commun Engn Calicut 673601 Kerala India

ISBN: (纸本)9781479921775

In this paper, compressive sensing is combined with a chaotic key based generation of measurement matrix to provide an effective encryption algorithm for multimedia security. Block-based compressive sensing provides a better way in the field of image and video transmission by reducing the memory requirements and complexity, where as multiple hypothesis prediction provides a competent way in improving PSNR during reconstruction of block based compressive sensed images and videos. The measurement matrix F place a crucial role in this compressive sensing and as well as in the reconstruction process. A possibility to generate secure measurement matrix using piecewise linear chaotic map (PWLCM) as the seed and then hiding initial condition, system parameter, number of iterations of PWLCM as the key enable the sender to incorporate room for encryption along with the compression in a single step. The above mentioned scheme provides high level of data security, reduced complexity, compression with a good reconstruction quality and beside all it reduce the burden of sending the measurement matrix along with the data which further reduces the complexity in over all compressive sensing framework.

关键词： measurement matrix Compressed sensing Data Security cryptography memory requirements images encryption algorithm Video transmission Imagery (Psychotherapy) high-level data type

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