检索结果-内蒙古大学图书馆

2nd International Conference on Machine Vision

作者： Subbarayan, Sadasivam Ramanathan, S. Karthick Laureate Int Univ Fac Engn & Technol INTI Univ Coll Nilai Malaysia

ISBN: (纸本)9780769539447

Watermarking is a technique which allows an individual to add hidden copyright notices or other verification messages to digital audio, video, or image signals and documents. In our proposal, for Audio Watermarking, a Watermark is encrypted using rsa algorithm and is embedded on the audio file using LSB technique. LSB technique is an old technique which is not very robust against attacks. Here, in audio watermarking we have embedded the encrypted watermark on the audio file, due to which removal of the watermark becomes least probable. This would give the technique a very high robustness. In the retrieval, the embedded watermark is retrieved and then decrypted. This method combines the robustness of Transform domain and simplicity of spatial domain methods. For image Watermarking, DWT technique is used DWT technique is used in Image watermarking. Here, we have embedded the watermark in the image as a pseudo-noise sequence. This gives a remarkable security to the image file as only if the exact watermark is known can the embedded watermark be removed from the watermarked image.

关键词： Audio and Image watermarking rsa algorithm LSB and DWT technique

来源：评论

学校读者我要写书评

暂无评论

Security Analysis of Concast and Anycast Digital Signature

Security Analysis of Concast and Anycast Digital Signature

引用

2nd International Conference on Frontiers of Manufacturing and Design Science (ICFMD 2011)

作者： Liu, Chenglian Guo, Yongning Fujian Normal Univ Dept Math & Comp Sci Fuqing Branch Fuqing 350300 Peoples R China

ISBN: (纸本)9783037852828

In the above paper a conception has been proposed which is a variant of the ElGamal-type digital signature. It considers the problem of authentication in the concast and anycast communication model. This paper proposed an improvement of concast scheme and also given a forgery attack on the anycast scheme. The authors state signature scenario scheme as follows.

关键词： rsa algorithm Factorization Discrete logarithm Asymmetric cryptography

来源：评论

学校读者我要写书评

暂无评论

High-speed rsa hardware based on Barret's modular reduction method 2nd

High-speed RSA hardware based on Barret's modular reduction ...

引用

2nd International Workshop on Cryptographic Hardware and Embedded Systems (CHES 2000)

作者： Grossschädl, J Graz Univ Technol Inst Appl Informat Proc & Commun A-8010 Graz Austria

ISBN: (纸本)354041455X

The performance of public-key cryptosystems like the rsa encryption scheme or the Diffie-Hellman key agreement scheme is primarily determined by an efficient implementation of the modular arithmetic. This paper presents the basic concepts and design considerations of the rsa-gamma crypto chip, a high-speed hardware accelerator for long integer modular exponentiation. The major design goal with the rsa gamma was the maximization of performance on several levels, including the implemented hardware algorithms, the multiplier architecture, and the VLSI circuit technique. rsa-gamma uses a hardware-optimized variant of Barret's modular reduction method to avoid the division in the modular multiplication. From an architectural viewpoint, a high degree of parallelism in the multiplier core is the most significant characteristic of the rsa-gamma crypto chip. The actual prototype contains a 1056*16 bit partial parallel multiplier which executes a 1024-bit modular multiplication in 227 clock cycles. Due to massive pipelining in the long integer unit, the rsa gamma crypto chip reaches a decryption rate of 560 kbit/s for a 1024-bit exponent. The decryption rate increases to 2 Mbit/s if the Chinese Remainder Theorem is exploited.

关键词： public-key cryptography rsa algorithm modular arithmetic partial parallel multiplier pipelining full-custom VLSI design

来源：评论

学校读者我要写书评

暂无评论

Error prevention, detection and diffusion algorithms for cryptographic hardware

Error prevention, detection and diffusion algorithms for cry...

引用

International Conference on Dependability of Computer Systems

作者： Nikodem, Maciej Wroclaw Univ Tehcnol Inst Comp Engn Control & Robot Wroclaw Poland

ISBN: (纸本)9780769528502

It is well known that hardware is susceptible to variety of different faults causing device malfunction, errors in the output or simply destroying the device. These threats refer to any type of hardware. However in case of cryptographic devices, such as smart cards or crypto-processors, errors may also leak some secret information hidden in the device (e.g. encryption keys). This was presented for almost all cryptographic protocols and algorithms allowing an adversary to perform a fault analysis. Therefore it is urgent to propose hardware implementation of cryptographic algorithms that will be immune to this type of attack. Some solutions to this problem. have been already proposed for the rsa algorithm based on the Chinese Reminder Theorem and for symmetric algorithms. On the other hand there is a large number of algorithms that are susceptible to fault analysis but no solutions to increase immunity have been proposed so far. In our paper we classify different techniques that aim to increase immunity to fault analysis. We also show that some of these methods may be used to improve security of other protocols while other are algorithm specific. Our analysis will be based on the rsa and the ElGamal signature schemes.

关键词： FAILURE ANALYSIS rsa algorithm algorithms Computer hardware Immunity cryptographic protocols Health Smart Cards cryptography cryptoequipment

来源：评论

学校读者我要写书评

暂无评论

Development of a New algorithm Based on SVD for Image Watermarking 1

引用

International Conference on Computational Vision and Robotics (ICCVR)

作者： Ray, Arun Kumar Padhihary, Sabyasachi Patra, Prasanta Kumar Mohanty, Mihir Narayan KIIT Univ Sch Elect Engn Bhubaneswar Odisha India SOA Univ Sch Elect Engn ITER Bhubaneswar Odisha India

ISBN: (数字)9788132221968

ISBN: (纸本)9788132221968;9788132221951

The research on watermarking has been increasing day-by-day since past decade. It has been largely driven by its important applications in digital copyrights management and protection. To provide more watermarks and to minimize the distortion of the watermarked image, a novel technique is presented in this paper. In this paper, the singular value decomposition (SVD)-based image watermarking scheme is proposed. The output result of SVD is more secure and robust. SVD is often used to develop robust watermarking algorithms. However, the SVD-based algorithms exhibit false-positive problem and pose security concern. In this work, we try to overcome this problem. In the proposed schemes, the host image is first decomposed into sub-bands by applying discrete wavelet transform (DWT). The watermark image is embedded in all the sub-bands by modifying the singular values of each sub-band. Next to it, we propose to encrypt and embed the singular values of the watermark image instead of original singular values. rsa algorithm has been used for the encryption process. Peak signal-to-noise ratio (PSNR) is used to measure the imperceptibility of the proposed schemes. The simulation result shows its efficacy.

关键词： Watermarking DWT SVD rsa algorithm Encryption

来源：评论

学校读者我要写书评

暂无评论

SYSTOLIC MODULAR MULTIPLICATION

引用

IEEE TRANSACTIONS ON COMPUTERS 1993年第3期42卷 376-378页

作者： WALTER, CD Comput. Dept. Univ. of Manchester Inst. of Sci. & Technol. UK Abstract Authors References Cited By Keywords Metrics Similar Download Citation Email Print Request Permissions n+ cycles for multiplicands having ..." property="og:description">

A systolic array for modular multiplication is presented using the ideally suited algorithm of P. L. Montgomery. Throughput is one modular multiplication every clock cycle, with a latency of 2n + 2 cycles for multiplicands having n digits. Its main use would be where many consecutive multiplications are done, as in rsa cryptosystems.

关键词： CRYPTOGRAPHY DIGITAL ARITHMETIC METHODS FAST COMPUTER ARITHMETIC MODULAR MULTIPLICATION rsa algorithm SYSTOLIC ARRAY

来源：评论

学校读者我要写书评

暂无评论

Computation and communication efficient secure group key exchange protocol for low configuration system

引用

International Journal of Information Technology (Singapore) 2021年第3期13卷 839-843页

作者： Rawat, Arjun Singh Deshmukh, Maroti Department of Computer Science and Engineering National Institute of Technology Uttarakhand Srinagar Uttarakhand India

The group key exchange protocol is a cryptographic mechanism is designed to provide a common session key for a group, there are some common challenges to this type of algorithm as computation and communication cost. Whenever the involvement of high computation and communication operations to the algorithms encounter, then the system with low configuration always faces problem in major time delay. The proposed approach is designed specifically to provide computation and communication efficient algorithms for low configuration systems without violating the security. For making our approach computationally efficient, we replaced modular exponential operation by modular multiplication operation, helpful for low configuration system making task early. For making our approach communication efficient, we used the divide and conquer mechanism to reduced the message transmission cost. The major task is to generate a common session key for the group in less computation time for a low configuration system without violating the security. The rsa algorithm assuring security with constant computation cost while the modular multiplication operation, assuring the less computation cost for low configuration system. The major limitation of the study as the approach is more efficient and applicable for low configuration system only, if comparing the existing approaches with the low configuration system. © 2021, Bharati Vidyapeeth's Institute of Computer Applications and Management.

关键词： Communication time Computation time Group key exchange protocol Key exchange protocol rsa algorithm Session key

来源：评论

学校读者我要写书评

暂无评论

Battlefield Health Surveillance with Soldier Tracking: A Privacy-Preserving Encrypted Approach

Battlefield Health Surveillance with Soldier Tracking: A Pri...

引用

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

作者： Ingale, Kiran Vaze, Sanaya Uttarwar, Varad Urane, Samarth Thosar, Samarth Mahajan, Tavishi Vishwakarma Institute of Technology Department of Multidisciplinary Engineering Pune India Vishwakarma Institute of Technology Department of Computer Engineering Pune India

ISBN: (纸本)9798350344387

In this paper, a system is designed and implemented, keeping in mind the safety and efficiency of the soldiers. The system will monitor various vital signs of the soldier to ensure his safety and will also help him to execute his mission. Location tracking is also embedded in the system to know about a soldier's exact location. The system is implanted in a wearable jacket for the convenience of soldiers. In the system, the ESP 32 cam module is used with various sensors like heart rate sensor, DS18B20 etc. Data collected by the system will be sent to the server and stored in databases. This is very sensitive data, and thus, if it gets into the enemy's hands, it can be fatal. So, for transmitting this data, encryption is used. This data will be analyzed and will be displayed on a private website in graphical formats, adding accuracy, complexity, results *** the statements and issues discussed above, this paper was designed to overcome all of them. In this paper, a system is designed and implemented, keeping in mind the safety and efficiency of the soldiers. The system will monitor various vital signs of the soldier to ensure his safety and will also help him to execute his mission. Location tracking is also embedded in the system to know about a soldier's exact location. The system is implanted in a wearable jacket for the convenience of soldiers. In the system, the ESP 32 cam module is used with various sensors like heart rate sensor, DHT11 e, etc. Data collected by the system will be sent to the server and stored in databases. This is very sensitive data, and thus, if it gets into the enemy's hands, it can be fatal. So, for transmitting this data, encryption is used. This data will be analyzed and will be displayed on a website in graphical formats, adding accuracy, complexity, results, etc. This paper describes the necessity of a consolidated soldier system that includes and safeguards the health and well-being of a soldier. It elucidates the design, imp

关键词： battlefields ESP-32 camera module rsa algorithm Soldier

来源：评论

学校读者我要写书评

暂无评论

A New Approach for Secure Data Transmission

A New Approach for Secure Data Transmission

引用

IEEE International Conference on Circuit, Power and Computing Technologies (ICCPCT)

作者： Pranesh, R. Harish, V. Vigneshwaran, M. Manikandan, G. SASTRA Univ Sch Comp Thanjavur India

ISBN: (纸本)9781509012770

In the global networked world, there is a phenomenal growth in data transfer and sharing. Security plays a vital role in transmitting the private data over the communication medium which tends to be open and insecure. The threat posed by an intruder in accessing the "not to be disclosed data" has been a genuine apprehension for the communication specialists. In this paper we propose a new approach for security enhancement. Before the encryption process the data to be transferred is rearranged which results in a modified data. The modified data is given as input for the encryption algorithm. For experimental purpose we use rsa algorithm for encryption and decryption.

关键词： Security rsa algorithm Encryption Decryption Key

来源：评论

学校读者我要写书评

暂无评论

Securing Medical Images for Mobile Health Systems Using a Combined Approach of Encryption and Steganography 14th

Securing Medical Images for Mobile Health Systems Using a Co...

引用

14th International Conference on Intelligent Computing (ICIC)

作者： Jiang, Tao Zhang, Kai Tang, Jinshan Wuhan Univ Sci & Technol Coll Comp Sci & Technol Wuhan 430065 Hubei Peoples R China Michigan Technol Univ Sch Technol Houghton MI 49931 USA

ISBN: (纸本)9783319959573;9783319959566

In this paper, we propose a medical image encryption scheme which can be used in mobile health systems. The proposed scheme combines rsa algorithm, logistic chaotic encryption algorithm, and steganography technique to secure medical images. In the proposed scheme, we encrypt a medical image based on chaotic sequence and encrypt the initial value of the chaotic sequence using the rsa encryption algorithm. The encrypted information by rsa is hidden in the Image. Only legitimate users can obtain the parameter information and restore the image. In the receiver side, we apply the inverse methods to get the original image after an encrypted image is arrived. We have implemented a simple application on the Android platform and have evaluated its performance. The experimental results show that the proposed image encryption scheme is practical and feasible for mobile health systems.

关键词： Medical image encryption rsa algorithm Chaos F5 steganography Mobile phones

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：