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Image singular points extraction in wavelet domain based on key exchange algorithm

MICROPROCESSORS AND MICROSYSTEMS 2021年 82卷 103804-103804页

作者： Yu, Zhichao Chen, Chen Huanggang Normal Univ Sch Comp Huanggang 438000 Peoples R China

Singularities and irregular mutation areas in wavelet domain images often carry important information and are one of the important features of images. Based on this, this paper proposes a research on image singular points extraction in wavelet domain based on key exchange algorithm. On the basis of analyzing the security key theory, the wavelet domain image is decomposed by using the key exchange algorithm, and then the image is preprocessed and matched to the singularity set, so as to realize the segmentation and extraction of singularity features. The experimental results show that the method can effectively extract the singularities, the shortest extraction process is only 1.2 s, and the singularities error detection rate and omission rate are low. Experimental results fully prove the effectiveness of the method.

关键词： key exchange algorithm Wavelet domain image Singular point Pretreatment Graph matching

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A New Lightweight key exchange Protocol Based on T-tensor Product 4

A New Lightweight Key Exchange Protocol Based on T-tensor Pr...

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4th IEEE Information Technology, Networking, Electronic and Automation Control Conference (ITNEC)

作者： Peng, Haipeng He, Mengwei Li, Lixiang Yang, Yixian Informat Secur Ctr State Key Lab Networking & Switching Technol Beijing 100876 Peoples R China Beijing Univ Posts & Telecommun Beijing 100876 Peoples R China Natl Engn Lab Disaster Backup & Recovery Beijing Peoples R China

ISBN: (纸本)9781728143903

In this paper, we define a new matrix algorithm, T-tensor product, and design a lightweight key exchange protocol using the proposed matrix algorithm. The T-tensor product can break the dimensions restriction of key exchange protocol which using the matrix as the basic element in the protocol, and significantly reduce the size of the exchange matrix. In our protocol, the communication parties can generate the key of any size with low transmission overhead. For example, in order to generate the session key with the size 144*144, the communication pairs just need the public matrix with the size 6*2 in the initial stage and exchange the matrix with the size 18*18 in the exchange phase. The communication parties can generate keys of any length according to the symmetric encryption algorithm they used. Therefore, the communication parties do not need to preset the dimensions of the exchange matrix. Meanwhile, the computational cost of our protocol is quite low and stable as the size of the session key increases. This advantage demonstrates that our protocol is very suitable for a limited hardware environment, such as the Internet of Things (IoT) and Internet of Vehicles (IoV), which need low power consumption and high speed in the key exchange.

关键词： Tropical cryptographic algorithms Matrix operation key exchange algorithm Lightweight

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Hardware variant NSP with security-aware automated preferential algorithm

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IET COMPUTERS AND DIGITAL TECHNIQUES 2018年第5期12卷 192-205页

作者： Paul, Rourab Sikder, Gitesh Chakrabarti, Amlan Ghosh, Ranjan Univ Calcutta Sch IT Kolkata India

Efficient and cost-effective hardware design of network security processor (NSP) is of vital importance in the present era due to the increasing need of security infrastructure in a wide range of computing applications. Here, the authors propose an NSP in field programmable gate array (FPGA) platform where according to a strict power, throughput, resource, and security priorities, a proposed preferential algorithm chooses a cipher suite to program the hardware. The choice is based on a rank list of available cipher suites depending on efficient system index evaluated in terms of power, throughput, resource, and security data and their given weights by the user. Encryption, hash, and key exchange algorithm along with their architectural variants serve excellent hardware flexibility whose bit files are stored in secure digital memory. The proposed design used an isolated key memory where secret keys are stored in encrypted form along with the hash value. The design is implemented using ISE14.4 suite with ZYNQ7z020-clg484 FPGA platform. The performances of the variants architecture of the crypto algorithms are considerably better in terms of power, throughput, and resource than the existing works reported in the literature.

关键词： field programmable gate arrays microprocessor chips cryptography logic design hardware variant NSP security-aware automated preferential algorithm cost-effective hardware design network security processor security infrastructure field programmable gate array preferential algorithm cipher suites system index security data key exchange algorithm architectural variants secure digital memory encryption secret keys hash value ZYNQ7z020-clg484 FPGA platform ISE14 4 suite crypto algorithms

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TRUCE - An Adaptive Trust Management algorithm Over MANET for Service-Based Mobile Computing Environments

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INFORMATION SECURITY JOURNAL 2011年第4-5期20卷 173-184页

作者： Saminathan, R. Selvakumar, K. Annamalai Univ Dept Comp Sci & Engn Annamalainagar 608002 Tamil Nadu India

Managing trust in a distributed MANET is challenging when collaboration or cooperation is critical to achieve mission and system goals such as reliability, availability, scalability, or reconfigurability. This paper discusses initiation and updation of trust values (called as TRUCE Value) over a defined trust model for mobile ad hoc networks. Each node {ni, where i is an element of 1, 2, 3,.., m} is assigned a trust level initially, while trust levels are updated dynamically based on behavior of nodes {n1, n2,.., nm} using threat detection tools and metrics, such as Intrusion Detection Systems (IDSs) (Zhang et al. (2002), between all nodes in the network. The node {nj} neighboring to a node {nk} exhibiting suspicious behavior can initiate trust reports, and based on an average set of trust reports, the node's {nj} trust value is modified. These defined trust reports are propagated through the network using one of TRUCE (proposed methods). A similar acceptable set of trust nodes can join together to evaluate the security of routes {r} from source to destination nodes. Using these trust levels as a guide, the source node can then select a route that meets the security requirements of the message to be transmitted. This paper focuses on design, development of Trust evaluation, assignment algorithm termed TRUCE over a dynamic, highly insecure MANET network. Also, it demonstrates the procedure of establishing a collaborative, dynamic trust model and uses this model as an example to enhance the security of message routing in mobile ad hoc networks. Performance by simulation reveals that existing malicious nodes behave with vulnerability over MANET routing protocols such as DSR and AODV, but TRUCE with proposed trust-based node incentive mechanism performs better than DSR in terms of packet successful delivery ratio and mean number of packets dropped.

关键词： key exchange algorithm trust management TRUCE Value (TV) MANET protocols

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Performance Analysis of Middleware distributed and clustered Systems (PAMS) concept in Mobile communication devices using Android operating system 3

Performance Analysis of Middleware distributed and clustered...

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International Conference Parallel Distributed Grid Computing

作者： Singh, Vinay Aggarwal, Alok JPIET Dept CSE Meerut Uttar Pradesh India

ISBN: (纸本)9781479976836

Recent advances in computational power, memory, display etc. have propelled mobile and hand held devices as a platform to display and execute a variety of applications. Popular platform vendors like Nokia S60, iPhone, Samsung and Android offer extensive middleware support which helps in developers' port and in packaging of different application modules in a suitable format. These devices have several features like processing power, memory, energy, which exhibit the ability of these devices for performing complex tasks. Nowadays multi core processor architecture like Quad-Core Processor up to 3.0 GHz and Java enabled Android operating systems mobile devices are coming into the market which have potential for support and enhancements for an enterprise. In a complex and critical real time production support enterprise environment, a middleware production support analyst is primarily responsible to access, analyze the performance and control the middleware production application servers in a faster and precise manner. Production support analyst may or may not be available to Unix Production servers at all times due to many reasons. In this work a novel approach, Performance Analysis of Middleware distributed and clustered Systems (PAMS), is proposed using Android application by which a production support analyst can still support all critical real time web based application servers while he is away from the Unix based Middleware application server and can ensure that the same is available and accessible to their customers. An Android based application is proposed which will communicate to higher production layers installed in secure network of an organization and gather the data for performance monitoring and analysis. With the proposed concept production support analyst can easily login and open the console of middleware application servers using VPN (Virtual Private Network) and take immediate necessary actions so that business flow should not be impacted and enterpri

关键词： SSLV3 key exchange algorithm TLSV1 Heap space Cluster-weight JMS active connections Android APIs WeblogicAPIs VPN Firewall

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