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International IEEE Conference Devoted to the 150-Anniversary of Alexander S Popov

作者： Shahmoradi, Abbas Masoumi, Massoud Semnan Univ ECE Dept Semnan Iran KN Toosi Univ Tech ECE Dept Tehran Iran

ISBN: (纸本)9781424439676

This paper describes a preliminary performance evaluation of the implementation of secure hash algorithm (SHA-512) building blocks on a cell-FPGA-like hybrid CMOS/nanodevice architecture. Such circuits will combine a semiconductor- transistor (CMOS) stack and a two-level nanowire crossbar with nanoscale two-terminal nanodevices (programmable diodes) formed at each crosspoint. The new design is based on two-cell fabric CMOL FPGA which can be used for mapping any arbitrary circuit. In addition, using a custom set of design automation tools quasi-optimium gate placing, placing, routing and rerouting are provided for SHA-512 fundamental building blocks. It is shown that such a design results in a circuit which is defect tolerant, much faster and strikingly denser than its CMOS counterpart

关键词： secure hash algorithm Nanoelectronic CMOS/Nanodevice Architecture CMOS FPGA CMOL FPGA

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De-duplication Approach with Enhance Security for Integrity 4

De-duplication Approach with Enhance Security for Integrity

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4th International Conference on Computing Communication Control and Automation (ICCUBEA)

作者： Pokale, Minal Bharat Chaware, Sandeep M. MMCOE Dept Comp Engn Pune Maharashtra India

ISBN: (纸本)9781538652572

Cloud computing becomes one of the important part of the IT-enterprise. It delivers computing application, software, hardware and computing resources to the user. So many user gets connected to the cloud because of the facility it provided. In this, user pays only for the services it uses. Now a days, vast amount of information gets stored over cloud, which include personal file, images, pdf, text, multimedia data etc. So security becomes one of the important issue. Everyone just want to upload, store its data without worrying about the security. IT organization should look after to provide security to the document. Documents content get altered by some outsider attacker, so it is necessary to verify the integrity. This data get duplicated and unnecessary much of the space will get waste. So to avoid this, data must be de-duplicated and uploaded over the cloud server. For this secure hash algorithm is used. It calculates the hash value for chunk of data and store over cloud. Only reducing unnecessary wastage of space is not the solution administrator should look toward the security issue. TPA is used for verification of integrity of the document. This system is proposed for achieving this both issues.

关键词： Cloud Server hash Table Third Party Auditor secure hash algorithm Chunk Private Server Encryption algorithm

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Research of Spam Filtering System Based on LSA and SHA

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5th International Symposium on Neural Networks

作者： Sun, Jingtao Zhang, Qiuyu Yuan, Zhanting Huang, Wenhan Yan, Xiaowen Dong, Jianshe Lanzhou Univ Technol Coll Elect & Informat Engn Lanzhou 730050 Peoples R China Lanzhou Univ Technol Coll Comp & Commun Lanzhou 730050 Peoples R China Shaanxi Univ Technol Dept Comp Sci & Technol Hanzhong 723003 Peoples R China Shaanxi Xiyu Highway Corp Ltd Shaanxi 715400 Peoples R China

ISBN: (纸本)9783540877332

Along with the widespread concern of spam problem, at present, there are spam filtering system nowadays about the problem of semantic imperfection and spam filter low effect in the multi-send spam. This paper proposes a model of spam filtering which based on latent semantic analysis (LSA) and message-digest algorithm 5 (SHA). Making use of the LSA marks the latent feature phrase in the spare, semantic analysis is led into the spam filtering technique: the "e-mail fingerprint" of multi-send Spain is born with SHA on the LSA analytical foundation, the problem of filtering technique's low effect in the rnulti-send spare is resolved with this kind of method. We have designed a spate filtering system based on this model. Our designed system was evaluated with an optional dataset. The results obtained were compared with KNN algorithm filter experiment results show that system based on Latent Semantic Analysis and SHA performs KNN. The experiments show the expected results obtained, and the feasibility and advantage of the new spam filtering method is validated.

关键词： Latent Semantic Analysis secure hash algorithm Mail Characteristic ID Slipping Windows Spain Filtering

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A Proposed Impregnable 256-Bit hash Producer 15

A Proposed Impregnable 256-Bit Hash Producer

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15th International Computer Engineering Conference (ICENCO)

作者： Hussein, Omar October Univ Modern Sci & Arts MSA Fac Management Sci Dept Management Informat Syst 6Th October Egypt

ISBN: (纸本)9781728151465

This paper proposes a robust 256-bit hash producer. The underlying motivation is to overcome security-related limitations of pseudo-random number generators embedded in Linux and Windows, which render these widely used operating systems vulnerable to security breaches. The proposed approach is called hash Bits Producer-256 (HBP-256). It produces outputs that look like random to an adversary who is unaware of its internal state. In addition, it provides forward and backward security in case its internal state is known to an adversary at any particular time. HBP-256 offers such protection by providing the following capabilities. Firstly, output pseudo-randomness. This is ensured by: (1) seeding and reseeding HBP256 from three sources of entropy input, of which two are non-deterministic hardware sources;and (2) maintaining a high-level entropy input. Secondly, provide forward security. This is ensured by using two one-way irreversible functions: the secure hash algorithm-256 (SHA-256) and SHA-512. Thirdly, provide backward security. This is ensured by: (1) maintaining cumulative entropy;(2) sustaining rapid refreshment rates for the entropy pools;and (3) preserving uniqueness of bits input to the SHA-512 at any particular time. Security analysis is conducted by exposing HBP-256 to external and internal attacks. Based on the security analysis, it is concluded that HBP-256's individual and collaborative defenses successfully address adversaries' attempts to compromise HBP-256 from outside as well as from within its boundary. HBP-256 meets the intended security requirements, and achieves its objective.

关键词： bits producer entropy forward security backward security secure hash algorithm

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An Encryption Scheme Using Multi-Scroll Memristive Chaotic System 23

An Encryption Scheme Using Multi-Scroll Memristive Chaotic S...

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2nd Asia Conference on algorithms, Computing and Machine Learning (CACML)

作者： Wu, Fan Ji'e, Musha Wang, Lidan Duan, Shukai Southwest Univ Coll Artificial Intelligence Chongqing 400715 Peoples R China

ISBN: (纸本)9781450399449

In this paper, a novel multi-scroll memristive chaotic system is designed based on Chua's system via introducing a nonlinear memristor. The dynamics of this system is analyzed based on bifurcation diagrams, Lyapunov exponents and phase diagrams. Subsequently, an image encryption scheme based on this system is then proposed. First, the proposed chaotic system is used to generate continuously robust chaotic sequences, the hash values of plaintext images are embedded in the generation and selection of chaotic sequences and involved in each step of encryption to establish the coupling relationship between plaintext and ciphertext. Second, Knuth-Durstenfeld algorithm is used to scramble the high four-bit plane of the plain image twice, and the chaotic sequence is used as the index sequence, which greatly improves the efficiency and randomness of the permutation process. Finally, chaotic sequences are involved in DNA coding rules and pixel-level diffusion. The algorithm is highly sensitive to plain images, and it can realize adaptive encryption. Through performance analysis and comparison with recent literature, the proposed algorithm can cope with various attacks and show excellent performance.

关键词： Multi-scroll attractor Image encryption secure hash algorithm Shuffling algorithm DNA coding

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A Flexible Hardware Implementation of SHA-1 and SHA-2 hash Functions

A Flexible Hardware Implementation of SHA-1 and SHA-2 Hash F...

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Docherty, James Koelmans, Albert Newcastle Univ Sch Elect Elect & Comp Engn Newcastle Upon Tyne NE1 7RU Tyne & Wear England

ISBN: (纸本)9781424494743

This paper summarizes the design of a reprogrammable Application Specific Integrated Circuit capable of performing all members of the secure hash algorithm (SHA) group of hash Functions. The need for high-speed cryptography is introduced, as well as the SHA-1 and SHA-2 hash Functions and their operation. Work performed at other institutions to improve throughput and power consumption is presented with advantages and disadvantages discussed. The ASIC design is then discussed, with comparisons made to previously published ASIC and FPGA implementations. The possibility of using this ASIC architecture for the SHA-3 candidates, as well as the Message Digest (MD) families of hash Functions is suggested as an area of future work as it is shown the ASIC Architecture designed would be capable of this with only program modifications required.

关键词： Cryptography hash Function secure hash algorithm

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A Big Data Storage Scheme Based on Distributed Storage Locations and Multiple Authorizations 5

A Big Data Storage Scheme Based on Distributed Storage Locat...

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5th IEEE Int Conf on Big Data Security on Cloud (BigDataSecurity) / 5th IEEE Int Conf on High Performance and Smart Computing (IEEE HPSC) / 4th IEEE Int Conf on Intelligent Data and Security (IEEE IDS)

作者： Al-Odat, Zeyad A. Al-Qtiemat, Eman M. Khan, Samee U. North Dakota State Univ Dept Elect & Comp Engn Fargo ND 58105 USA

ISBN: (纸本)9781728100067

This paper introduces a secured and distributed Big Data storage scheme with multiple authorizations. It divides the Big Data into small chunks and distributes them through multiple Cloud locations. The Shamir's Secret Sharing and secure hash algorithm are employed to provide the security and authenticity of this work. The proposed methodology consists of two phases: the distribution and retrieving phases. The distribution phase comprises three operations of dividing, encrypting, and distribution. The retrieving phase performs collecting and verifying operations. To increase the security level, the encryption key is divided into secret shares using Shamir's algorithm. Moreover, the secure hash algorithm is used to verify the Big Data after retrieving from the Cloud. The experimental results show that the proposed design can reconstruct a distributed Big Data with good speed while conserving the security and authenticity properties.

关键词： Big Data Security secure hash algorithm

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Watermarking digital vector map using graph theoretic approach

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Annals of GIS 2012年第2期18卷 135-146页

作者： Muttoo, Sunil Kumar Kumar, Vinay Department of Computer Science University of Delhi New Delhi India National Informatics Centre New Delhi India

Similar to any digital dataset, a digital map is also vulnerable to modification, deliberate alteration and copyright violation. A map is a visual representation of a geographical area that is digitally stored in either raster or vector forms. Vector map is preferred over raster for both space optimization and quick processing time. Digest concept used for message authentication is extended to digitally watermark a digital map. The map digest triplet (M _dp ¹, M _dp ² and M _dp ³) is generated using various features of a digital map, supplier code and customer code. The approach computes two 160-bit hash values using secured hash algorithm (SHA1)and one 128-bit digest using message digest (MD5) algorithm. These two hash values of 160 bit and one digest of 128 bit are then embedded into a sequence of nodes of the map using graph theoretic approach in such a way that any alteration in the map alters the sub-graph. The sub-graph is the watermark. There are three watermarks. © 2012 Copyright Taylor and Francis Group, LLC.

关键词： DXF geographic information system map digest secure hash algorithm spatial data steganography vector map watermarking

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Open-Source Crypto IP Cores for FPGAs - Overview and Evaluation 27

Open-Source Crypto IP Cores for FPGAs - Overview and Evaluat...

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27th Austrochip Workshop on Microelectronics (Austrochip)

作者： Billmann, M. Werner, S. Holler, R. Praus, F. Puhm, A. Kero, N. Univ Appl Sci Technikum Wien Dept Elect Engn Hochstadtpl 6 A-1200 Vienna Austria Oregano Syst Design & Consulting GmbH Franzosengraben 8 A-1030 Vienna Austria

ISBN: (纸本)9781728119533

With the increasing number of electronic based systems being connected to the Internet via wired or wireless connections in the era of the IoT, the importance of security aspects is well recognized. At the same time growth of available complexity and increasing market share of reconfigurable integrated circuits make integration of whole digital systems feasible at relatively low cost. Placing security functions into reconfigurable logic might be advantageous in case of algorithm changes, bug fixes, or updates for hardening of the core against attacks. In this paper we thus want to give an overview of available open-source hardware security building blocks for basic cryptographic functions and show evaluation results of selected cores in FPGA technology.

关键词： FPGA open-source cryptography IP cores advanced encryption standard secure hash algorithm physically unclonable function true random number generator

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Anonymous Location Aided secure Routing Protocol

Anonymous Location Aided Secure Routing Protocol

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International Conference on Information Communication and Embedded Systems (ICICES)

作者： Manjuladevi, V. Bharathi, R. Jennie Sri Krishna Coll Engn & Technol Dept ECE Coimbatore Tamil Nadu India

ISBN: (纸本)9781479938346

Anonymous location schemes classified into reactive routing methods and proactive routing methods and anonymous middleware methods. Reactive routing methods includes hop by hop encryption and redundant traffic analysis which either generates high cost or cannot provide full anonymity to source, destination and routes. An Anonymous Location-based Efficient Routing protocol (ALERT) was used to offer high anonymity protection at a low cost. GPSR protocol is used to transmit message from source to destination. Like other anonymity routing algorithms, ALERT is not completely bulletproof to all attacks. To prevent occurrence of active attacks advanced cryptographic algorithm SHA-2 is used, which provides better security features. Thus it provides full anonymity in Source destination as well as in route.

关键词： ALERT GPSR secure hash algorithm Anonymity

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