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International Conference on Advances in Computing (ICAdC 2012)

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

ISBN: (纸本)9788132207399;9788132207405

We introduce a novel way to use Low Density Parity Check (LDPC) error correction code to reduce the variability and noise in iris code, which is generated from Iris Recognition System (IRS) and secure hash algorithm (SHA-512) to transform codewords into hash string to make them as a Cancel-lable Biometric. In the enrolment process, by using majority voting scheme a unique iris code is generated from n-iris codes of IRS from n-eye samples of same person in different time interval. Then the codewords from LDPC encoding, parity check matrix of LDPC and hash string of codewords from SHA-512 are stored into smart card for high security access environment. In the verification process, iris code from live person is generated by using IRS then LDPC decoding is applied with the help of stored codewords and parity check matrix in the smart card. For authentication, new hash string, produced by employing SHA-512 on corrected iris code is compared with hash string stored in smart card. The LDPC code reduces the Hamming distance for genuine comparisons by a larger amount than for the impostor comparisons. This results in better separation between genuine and impostor users which improves the verification performance. Security of this scheme is very high due to the security complexity of SHA-512, which is 2256 under birthday attack. Experimental results show that this approach can assure a higher security with a low false rejection or false acceptance rate.

关键词： Error Correction Code Low Density Parity Check Smart card secure hash algorithm Iris Recognition System

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Robustness and Security Enhancement of SHA with Modified Message Digest and Larger Bit Difference

Robustness and Security Enhancement of SHA with Modified Mes...

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Symposium on Colossal Data Analysis and Networking (CDAN)

作者： Verma, Sandhya Prajapati, G. S. VNS Grp Inst Bhopal Dept CSE Bhopal Madhya Pradesh India

ISBN: (纸本)9781509006694

Now a day's data is transmitted between users through internet in the form of multimedia. The data transmission requires less time complexity as well as security of data, security is the big issue during transmission of data. Data integrity is one of the major parameter to ensure the security. There are many algorithms or methods have been developed for maintain the integrity of data during transmission. Numbers of algorithms have been proposed to provide integrity but almost all of them proved to be breakable or less secure in terms of execution time and bit difference. So to increase the security a novel SHA is introduced, that possess less execution time and better bit difference value.

关键词： Message Digest secure hash algorithm hash Function Message Integrity Time Complexity Cryptography

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Report on hash algorithm Performance - A Case Study of Cryptocurrency Exchanges Based on Blockchain System 5

Report on Hash Algorithm Performance - A Case Study of Crypt...

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5th International Conference on Data Intelligence and Cognitive Informatics, ICDICI 2024

作者： Chen, Abel C. H. Chunghwa Telecom Laboratories Information & Communications Security Laboratory Taoyuan Taiwan

ISBN: (纸本)9798350389609

The blockchain system has emerged as one of the focal points of research in recent years, particularly in applications and services such as cryptocurrencies and smart contracts. In this context, the hash value serves as a crucial element in linking blocks within the blockchain, ensuring the integrity of block contents. Therefore, hash algorithms represent a vital security technology for ensuring the integrity and security of blockchain systems. This study primarily focuses on analyzing the security and execution efficiency of mainstream hash algorithms in the Proof of Work (PoW) calculations within blockchain systems. It proposes an evaluation factor and conducts comparative experiments to evaluate each hash algorithm. The experimental results indicate that there are no significant differences in the security aspects among SHA-2, SHA-3, and BLAKE2. However, SHA-2 and BLAKE2 demonstrate shorter computation times, indicating higher efficiency in execution. © 2024 IEEE.

关键词： Bitcoin Blockchain Ethereum Evaluation Proof of work secure hash algorithm

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Enhancing Cloud Security: A Deep Cryptographic Analysis

Enhancing Cloud Security: A Deep Cryptographic Analysis

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2023 International Conference on Advances in Computation, Communication and Information Technology, ICAICCIT 2023

作者： Deshpande, Ashish Govindrao Srinivasan, C. Raman, Ramakrishnan Rajarajan, S. Adhvaryu, Rachit Maharashtra Pune India Saveetha University Department of Cse Saveetha Institute of Medical and Technical Sciences Tamil Nadu Chennai India Symbiosis Institute of Business Management Pune Maharashtra Pune India Sri Sai Ram Institute of Technology Department of Electronics and Communication Engineering Tamil Nadu Chennai India Parul University Faculty of Engineering and Technology Parul Institute of Engineering and Technology Gujarat Vadodara India

ISBN: (纸本)9798350344387

Cloud computing has transformed data storage, processing, and access. However, as cloud-based services grow more popular, protecting sensitive data is crucial. Cryptographic algorithms provide strong encryption, safe key exchange, and data integrity, improving cloud security. Cloud computing uses secure hash algorithm (SHA), Rivest-Shamir-Adleman (RSA), Elliptic Curve Cryptography (ECC), Advanced Encryption Standard (AES), and the Diffie-Hellman algorithm key exchange. For verifying data integrity Cloud computing uses SHA. SHA protects data during transmission and storage by creating a unique hash value for each block. This prohibits cloud data manipulation, ensuring data integrity. Asymmetric cloud encryption algorithm RSA is commonly used. Public and private keys ensure data transfer and secrecy. Cloud service providers and customers may securely share private data using the RSA algorithm. ECC's computational efficiency and security are making it desirable in cloud computing. Elliptic curves provide fast key creation and safe data transfer in ECC. secure communication, encryption, and authentication in cloud settings protect data. Symmetric encryption method of AES is used in cloud computing. Cloud computing requires Diffie-Hellman key exchange for safe communication. © 2023 IEEE.

关键词： Advanced Encryption Standard Cloud Computing Diffie-Hellman algorithm Elliptic Curve Cryptography Rivest-Shamir-Adleman secure hash algorithm

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Implementation and improvement of several representative encryption algorithms on TMS320C5402 DSPs

Nanjing Youdian Xueyuan Xuebao/Journal of Nanjing Institute ...

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Nanjing Youdian Xueyuan Xuebao/Journal of Nanjing Institute of Posts and Telecommunications 2005年第5期25卷 26-30+34页

作者： Wang, Mei Sha, Ai-Jun Yuan, Zhi-Feng College of Communication and Information Engineering Nanjing University of Posts and Telecommunications Nanjing 210003 China

Based on TMS320C5402 DSPs, this paper implemented and promoted four repres + entative encryption algorithms, including DES (data encryption standard) algorithm, SHA-1 (secure hash standard algorithm), MD5 (message-digest) algorithm and RSA public key algorithm. The main goal is to provide a general platform for decryption to meet the real-time requirement in certain occasions.

关键词： algorithm Optimization Date encryption standard algorithm Message digest RSA secure hash algorithm

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Block color image encryption algorithm based on elementary cellular automata and DNA sequence operations

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JOURNAL OF ELECTRONIC IMAGING 2021年第4期30卷 043025-043025页

作者： Chong, Jing Xie, Shucui Zhang, Jianzhong Liu, Dingqin Xian Univ Posts & Telecommun Sch Cyberspace Secur Xian Peoples R China Xian Univ Posts & Telecommun Sch Sci Xian Peoples R China Shaanxi Normal Univ Coll Math & Informat Sci Xian Peoples R China Xian Univ Posts & Telecommun Sch Informat & Commun Engn Xian Peoples R China

A block color image encryption algorithm based on chaotic system, elementary cellular automata (ECA), and deoxyribonucleic acid (DNA) sequence operations is proposed. The architecture is comprised of forward-diffusion, permutation, and backward-diffusion. First, the red, green, and blue components of a color image are converted into three DNA matrices by DNA encoding rule. Exclusive OR (XOR) operation is applied between the DNA coding chaotic sequence generated by the improved Henon map and three DNA matrices. Second, the large DNA matrix, composed of three DNA matrices, is divided into several small blocks with unequal sizes. ECA is employed to scramble the positions of these blocks. Finally, DNA com-putations are introduced to diffuse three permutated DNA matrices. In addition, initial values and system parameters of the chaotic system are calculated from the secure hash algorithm (SHA-256) hash value of the plain image and the given parameters. Both DNA encoding and ECA order rules rely on plaintext information. Therefore, the proposed algorithm is highly sensitive to plain image. Simulation results and security analyses demonstrate that our algorithm achieves excellent security performance and acceptable running time. (c) 2021 SPIE and IS&T [DOI: 10.1117/ ***.30.4.043025]

关键词： color image encryption elementary cellular automata deoxyribonucleic acid block permutation secure hash algorithm

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A novel compression-based 2D-chaotic sine map for enhancing privacy and security of biometric identification systems

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JOURNAL OF INFORMATION SECURITY AND APPLICATIONS 2024年 80卷

作者： Rahman, Mobashshirur Murmu, Anita Kumar, Piyush Moparthi, Nageswara Rao Namasudra, Suyel Natl Inst Technol Patna Dept Comp Sci & Engn Patna 800005 Bihar India Koneru Lakshmaiah Educ Fdn Dept Comp Sci & Engn Vaddeswaram 522302 Andhra Pradesh India Natl Inst Technol Agartala Dept Comp Sci & Engn Agartala Tripura India

Human biometric images are utilized for cell phone authentication, airport security, and biometric passports. To improve the biometric identification process, this should be protected from cyber attackers because it is sensitive to any minor changes. Thus, security is a major concern in biometric images. Traditional encryption and compression methods are ineffective for encrypting biometric images due to their high execution time and algorithm complexity. In this paper, a novel 2D chaotic sine map is proposed for generating encryption keys and improving security for biometric identification systems. The proposed scheme uses the 2D chaotic map to generate the private key and diffusion process. Here, the Henon-Sine Map (HSM-512), secure hash algorithm (SHA-256), and DNA computing are also used in the key generation process. The pixel values of the original images in the proposed schemes are shuffled using Mersenne Twister (MT) to improve the security of biometric images. Moreover, the Differential Huffman Compression (DHC) method is used for lossless compression while performing the XOR-based encryption process. The proposed model has been tested on different RGB biometric images, namely the SOCOFing dataset and the COVID-19 chest X-ray dataset. The experiment results have been evaluated using many performance metrics, such as entropy, key space, histogram analysis, key sensitivity, robustness analysis, correlation, and similarity analysis. The outcomes demonstrate that the proposed scheme is more effective than the state-of-the-art schemes.

关键词： 2D Henon-Sine map secure hash algorithm Image encryption Confusion and diffusion Lossless compression

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A Sensing Device with the Optical Temperature Sensors-Based Quad-RX Module and a Security Module

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SENSORS 2021年第5期21卷 1620-1620页

作者： Kim, Kyeeun Park, Siwoong Yeo, Chanil Park, Hyoung-Jun Kim, Hyunjin Heo, Young Soon Kang, Hyun Seo Kim, Kyungsoo Elect & Telecommun Res Inst Opt ICT Convergence Sect Gwangju 34129 South Korea IMR Gwangju 61008 South Korea

In this paper, we present a sensing device with the optical temperature sensors-based quad receiver (Quad-RX) module and a security module. In addition, in order to prevent cyberattacks on critical national infrastructures and key facilities, we implemented symmetric-key and secure hash algorithm-based hardware security modules in the key elements of the sensing device. A preliminary test was conducted prior to a field trial to verify the performance of the developed sensing device. The accuracy and stability of the sensing device were then verified for 1 month in a field test at facilities for energy storage systems and photovoltaic converters in sewage treatment plants.

关键词： sensor node optical receiver real-time monitoring fiber Bragg grating security module symmetric-key algorithm secure hash algorithm

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Forensics: Collection of Sound Digital Evidence

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Journal of Information Security 2023年第4期14卷 454-463页

作者： Richard Kabanda Harihar Thapa Luis Rivera College of Engineering University of New Haven West Haven USA

This summary paper will discuss the concept of forensic evidence and evidence collection methods. Emphasis will be placed on the techniques used to collect forensically sound digital evidence for the purpose of introduction to digital forensics. This discussion will thereafter result in identifying and categorizing the different types of digital forensics evidence and a clear procedure for how to collect forensically sound digital evidence. This paper will further discuss the creation of awareness and promote the idea that competent practice of computer forensics collection is important for admissibility in court.

关键词： Electronic Discovery Reference Model National Institute of Standards and Technology (NIST) Message-Digest algorithm secure hash algorithm Forensically Sound Digital Evidence

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Encryption System Design Based On DES And SHA-1

Encryption System Design Based On DES And SHA-1

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The Eleventh International Symposium on Distributed Computing and Applications to Business,Engineering and Science(DCABES2012)(第十一届分布式计算及其应用国际学术研讨会)(原名:电子商务、工程及科学领域的分布式计算和应用国际学术研讨会)

作者： Jian Zhang Xuling Jin School Of Science Beijing University Of Civil Engineering And ArchitectureBeijingChina

For modern society,The concealment and completeness of data is particularly *** solve this problem,developed a mixed DES and SHA-1 encryption system based on VC++*** system on the one hand by Triple DES and RSA algorithms for data encryption to hide,on the other hand,by the SHA-1 algorithm to validate the integrity of data,it has a wide range of practicality.

关键词： data encryption standard public key cryptography secure hash algorithm data encryption system

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