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检索条件"主题词=encryption algorithm"

共 295 条记录，以下是111-120 订阅

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PWLCM Based Image encryption Through Compressive Sensing

PWLCM Based Image Encryption Through Compressive Sensing

引用

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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Enhancements of encryption Method Used in SDEx 24th

Enhancements of Encryption Method Used in SDEx

引用

24th International Conference on Computer Networks (CN)

作者： Hlobaz, Artur Podlaski, Krzysztof Milczarski, Piotr Univ Lodz Fac Phys & Appl Informat Pomorska 149-153 PL-90236 Lodz Poland

ISBN: (纸本)9783319597676

In the paper, we present enhancements of the encryption method for secure data transmission used in Secure Data Exchange method (SDEx) [1-3]. Potential weaknesses and possible attacks have been previously described in [4]. The new version of the encryption method is immune to indicated in [4] vulnerabilities connected with the potential knowledge of the part of the original message and uneven distribution of bits in the message blocks. In the new solution, we use also Davies-Meyer scheme in order to enhance immunity to meet-in-the-middle attacks.

关键词： Data security Secure transmission encryption algorithm Cryptography Cryptanalysis Security analysis Meet-in-the-middle

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Multicore encryption and Authentication on a Reconfigurable Hardware 2

Multicore Encryption and Authentication on a Reconfigurable ...

引用

IEEE 2nd International Conference on Recent Trends in Information Systems (ReTIS)

作者： Ghosh, Saheli Das, Subha Jyoti Paul, Rourab Chakrabarti, Amlan Comp Sci & Engn RCC Inst Technol 2012 2014 Kolkata W Bengal India Univ Calcutta AK Choudhury Sch Informat Technol Kolkata W Bengal India

ISBN: (纸本)9781479983490

Security has always been the toughest challenge in data communication, at the same time it is the biggest necessity in transmitting confidential data. Sensitive data are often at stake when they are deployed in a network. Embedded system design is a very popular research activity as it has a wide range of applications namely, security and surveillance, personal digital assistant, biomedical systems, mobile and pervasive communication gadgets, along with its huge speed compared to very popular software designs. Most of the embedded system applications involve data communication between multiple parties. To add to it, sensor technology requires physically secured systems, which can be dealt with cryptographic and hashing algorithms. However, a parallel implementation of encryption and Hashing algorithm will cost the efficiency and performance speed of the system. To overcome the shortcomings a multi-core system, capable of parallely executing authentication and encryption is proposed. In this proposal a encryption algorithm and a hash algorithm are placed into two ARM cortex processor of ZYNQ 7020-clg484 FPGA board using ISE 14.4 design suite. The true parallel execution of both algorithms increases system throughput. The soft core IPs(RS232 and Ethernet) are placed in FPGA region to handle realtime data.

关键词： cryptography reconfigurable hardware data communication Authentication real-time data hashing encryption algorithm sensor technology Research Activities Ethernet networks Embedded systems Piles Multi-core processors

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Image information hiding encryption using chaotic sequence

Image information hiding encryption using chaotic sequence

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11th International Conference on Knowledge-Based Intelligent Informational and Engineering Systems/17th Italian Workshop on Neural Networks

作者： Liu, Zhen Xi, Lifeng Zhejiang Wanli Univ Sch Comp Sci & Informat Technol Ningbo 315100 Zhejiang Peoples R China

ISBN: (纸本)9783540748267

In this paper, we propose a new image watermark algorithm of information hiding scheme based on chaotic encryption. Chaotic sequence is regarded as a noise-like spread sequence, and the secret signal to be transmitted is modulated and hidden in the carrier image as white noise to implement secure communication. The encryption principle of new algorithm is firstly presented in this paper, and the merits of new scheme are quantitatively analyzed by defining integrality and imperceptibility of image information. The results of computer simulation are described in the end.

关键词： information hiding chaotic sequence encryption algorithm wavelet transform

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The design of encryption system based on RC5 arithmetic

The design of encryption system based on RC5 arithmetic

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International Conference on Advanced Design and Manufacturing Engineering (ADME 2011)

作者： Liang, SongFeng Dong, ZhuRong Qiu, Hao Shenzhen Polytech Sch Automot & Transportat Engn Shenzhen Guangdong Peoples R China

This paper includes some conceptions of symmetrical cryptology such as " Liner Feed Back Shift Register"(LFSR) and RC5 arithmetic. The paper also introduces the application of symmetrical cryptology in encry... 详细信息

ISBN: (纸本)9783037852132

关键词： Linear Feed Back Shift Register encryption algorithm encryption techniques PIC16F628

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A New Image Stream encryption Technique 58

A New Image Stream Encryption Technique

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IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS)

作者： Hassan, Firas Limbird, Michael Ullagaddi, Vishwanath Devabhaktuni, Vijay Ohio No Univ Dept Elec & Comp Engn & Comp Sc Ada OH 45810 USA Univ Toledo Dept Elec & Comp Engn & Comp Sc Toledo OH 43606 USA

ISBN: (纸本)9781467365574

This paper introduces a self-synchronous stream cipher with a considerable key space. In the proposed technique, the parity bit plane of a public image is used to encrypt the message. Simulation results showed that the histogram of the ciphered image is uniform representing almost equivalent probability of occurrence of each intensity level. The entropy of the ciphered image is almost equal to the theoretical value of 8, indicating that the information leakage in the proposed encryption process is negligible. The correlation coefficients of the ciphered image prove that there exists almost zero correlation between its pixels. The simulation results also showed that the proposed technique is highly sensitive to the four different parts of its password. Also, the plain-text attack analysis gave NPCR and VACI values that are close to ideal. The proposed technique is computationally simpler than other image encryption techniques in the literature. Finally, a high PSMSE of 83 dB in the decoded image was achieved at a ciphered bit error rate of 10(-4). Therefore, the proposed stream cipher can be efficiently used in real time multimedia and wireless applications.

关键词： cryptography encryption algorithm Stream cipher Image images Imagery (Psychotherapy) Zero correlation NPCDR1 gene Public Opinion strength class occurrence rate theoretical value Bit error rate histograms

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Secure H.264 Video Coding Using AES/CFB/PKCS5 Padding encryption on Various Video Frames (I, P, B) 10

Secure H.264 Video Coding Using AES/CFB/PKCS5 Padding Encryp...

引用

10th International Conference on Telecommunication Systems Services and Applications (TSSA)

作者： Adiguna, Tahta Hendrawan Bandung Inst Technol Sch Elect Engn & Informat Bandung Indonesia

ISBN: (纸本)9781509051700

Video applications are essential nowadays. Even though almost everyone has access to it right now, the means and ability to access it is not uniform. Some of the important aspects to consider are the bandwidth available on the user and the video codec compatibility. Therefore, we need to find a video codec which can be played on most currently available devices and apply lossy compression to get smaller file size while still having good visual quality. Another important aspect to consider is the security of the video. For optimal applications, we should find an encryption algorithm with good combination of security, performance and encryption time. The purpose of this paper is to demonstrate the result of video coding and compression using H.264 and the encryption performance using combination of AES/CFB /PKCS5 padding on various video frames (I, P, B).

关键词： video coding encryption algorithm H.264 AES CFB PKCS5 padding

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A Public Key encryption Scheme Based on Compressed Sensing 9

A Public Key Encryption Scheme Based on Compressed Sensing

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9th International Conference on Advanced Infocomm Technology (ICAIT)

作者： Zhen, Liu Engn Univ Armed Police Force Elect Dept Xian Shaanxi Peoples R China

ISBN: (纸本)9781538636282

In order to improve the security of Compressed Sensing, this paper put forward a new idea-Compressed Sensing Public Key encryption (CSPKE), realized a concrete CSPKE algorithm by combing Lattice-based Cryptography with Compressed Sensing, and proved its security of indistinguishability against chosen plaintext attack (IND-CPA) on standard model based on Learning With Error (LWE) assumptions. By using the matrix characteristics of LWE, this algorithm preserved the linear structure of CS. Efficiency analysis shows that it has acceptable increment on cost comparing to CS. It can be used in many fields, such as protecting security of data acquisition process based on CS.

关键词： component data collection security encryption algorithm compressed sensing LWE hypothesis quantum attack resistant

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AES-Driven Image encryption: Overcoming Security and Transmission Challenges 3

AES-Driven Image Encryption: Overcoming Security and Transmi...

引用

3rd IEEE Delhi Section Flagship Conference, DELCON 2024

作者： Bodat, Harshil Patel, Harshil Arora, Monika Ambekar, Dhruti Bodat, Sonu Sonia Pandit Deendayal Energy University Gandhinagar India Gujrat India Amity Business School Amity University Haryana India Yogananda School of AI computers and Data Science Shoolini University Solan India

ISBN: (纸本)9798331518592

Continuous demand for digitization of data necessitates world to take robust measures for securing messages sent over the insecure channels. Thus, the presented research gives an innovative image encryption scheme that focuses on encrypting the RGB components of each pixel individually, rather than the entire pixel. The encryption process employs a secondary image as a key, which must be equal to or larger than the original image being encrypted. By utilizing chaotic systems, this method improves security while also reducing the time required for encryption and decryption. Simulation results indicate that this approach offers a high level of both security and efficiency. Additionally, a Command Line Interface (CLI) tool has been developed, allowing users to encrypt and decrypt PNG, JPG, and JPEG images, while providing a key for future decryption, thus ensuring complete control over their images. This study highlights the critical need for image protection in today's digital landscape, where the surge of image data demands innovative solutions to safeguard privacy and integrity. The Advanced encryption Standard (AES) is employed to enhance both performance and security. This research contributes to the ongoing advancement of secure and efficient image encryption techniques, addressing the increasing concerns surrounding data security in the digital world. © 2024 IEEE.

关键词： Advanced encryption Standard (AES) chaotic systems cryptography data security decryption encryption algorithm Image encryption key stream generator RGB component encryption secure data transmission

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A Novel Public Key encryption Model Based on Transformed Biometrics

A Novel Public Key Encryption Model Based on Transformed Bio...

引用

IEEE Conference on Dependable and Secure Computing

作者： Yan, Bin You, Lin Sch Commun Engn Hangzhou 310018 Zhejiang Peoples R China

ISBN: (纸本)9781509055692

In the fuzzy identity-based encryption scheme, a trusted KGC (key generation center) is needed to generate the corresponding private key corresponding to the user's biometric public key. In order to deal with the decentralization problem and the verification problem of the users identity, we propose a public key encryption model based on transformed biometrics. In this model, the user uses the transformed biometrics as his public key and his inherent real biometrics as his private key. In order to protect the user's biometrics information from being leaked, we take some appropriate security measures such as biometric template protection technology and irreversible random conversion technology. These operations are performed locally by the user, and once the public key is generated, the random transformation matrix is deleted or destroyed. The user connects the device serial number in parallel with the modulus N as the input value of the SHA-256 function and uses the output message digest as the public information. The user uses the inner product encryption to complete the encryption process. In this model, the security parameter and the private keys do not require any trusted organization for their generation, and these sensitive information does not need to be transmitted over a public network. The communication parties do not need to know the public key information of the other party in advance. When the user needs to transmit the secret message, the user can query the corresponding public key and related information. We have effectively linked the biological identities with the digital identities. Our thorough analysis shows that the proposed encryption model is both secure and efficient for an encryption algorithm.

关键词： Public key Private key Consumers Biometrics input value encryption algorithm Public key encryption encryption processing cryptography Sensitive data transformation matrix

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