Design of Distributed Database System Based on Improved DES Algorithm

doi:10.38007/dps.2022.030403

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…Removing intermediate cipher text patterns in the final permutation increases diffusion. Therefore, DES hopes an attacker without the right key will struggle to decipher the cipher text [16]. As illustrated in Figure 1, for a single round implementation [17].…”

Section: Data Encryption Standard (Des)mentioning

confidence: 99%

Image Encryption Based on Hybrid Parallel Algorithm: DES-Present Using 2D-Chaotic System

Jasim,

Hoomod,

Hussein

2024

IJSSE

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Image encryption algorithms have recently been developed to protect data from hackers and give recipients privacy. DES is a widely recognized block cypher that has certain vulnerabilities that make it susceptible to differential attacks. The present is a lightweight symmetric algorithm that provides privacy for transferring information over the network but has some drawbacks in that it is difficult to maintain an appropriate level of complexity. The study suggests that to encrypt and decrypt images as quickly as possible, the system uses parallel environments in algorithms (Present and DES). It also uses a 2D-Chaotic key generation system to make the system stronger against statistical, differential, and brute force attacks. Where the DES algorithm uses four rounds, within each one round from the des, the present algorithm executes only four rounds, and the same 2D-Chaotic System is used to generate the key. The keys and blocks are distributed to 4 cores, 5 cores, or 6 cores at the same time. The performance evaluation of the proposed algorithm is quantified by several metrics: All peak signal-to-noise ratio (PSNR) values are low, which means the quality image encryption is good. Unlike MSE, all the values are very high, which indicates that the image we have encrypted has no similarity to the encrypted image. The NPCR value of 99.6658% indicates a high degree of accuracy in changing pixel values. Additionally, a unified average changing intensity (UACI) that doesn't go over 30.90% shows that the algorithm is good at making big changes in pixel intensities. And the analysis speed of the proposed system based on the parallelism of the environment is faster than the sequence algorithms (DES-Present). The results demonstrate the algorithm's ability to encrypt color images, making it useful in applications that require strong data and image security.

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Section: Data Encryption Standard (Des)mentioning

confidence: 99%

Image Encryption Based on Hybrid Parallel Algorithm: DES-Present Using 2D-Chaotic System

Jasim,

Hoomod,

Hussein

2024

IJSSE

View full text Add to dashboard Cite

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“…Alsharari N attempted to improve the overall system's operational accuracy through the combination of blockchain and the IoT. 14 Secondly, it is the pursuit of data consistency. As is well known, different devices may adopt different models, and the data format and semantics used may also be different.…”

Section: Dilemma Of the Iot In Processing Multi-source Heterogeneous ...mentioning

confidence: 99%

“…Firstly, IoT systems need to pursue data integrity, as the data in IoT systems typically comes from different devices and sensors. Alsharari N attempted to improve the overall system's operational accuracy through the combination of blockchain and the IoT 14 …”

Section: Dilemma Of the Iot In Processing Multi‐source Heterogeneous ...mentioning

confidence: 99%

Methods for aggregating multi‐source heterogeneous data in the IoT based on digital twin technology

2024

Internet Technology Letters

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The Internet of Things (IoT) technology can currently enable devices and systems in various fields to achieve interconnectivity, intelligence, and automation, which is significant for improving daily life. It connects objects through the Internet, achieving information exchange and sharing, bringing many conveniences to humanity, and improving the efficiency and quality of various industries. However, precisely because everything is interconnected, most IoT systems have high data throughput, which leads to issues such as reduced operational efficiency of IoT systems. Therefore, this article used digital twin (DT) technology to aggregate multi‐source heterogeneous data of the IoT, overcoming the problems of diversity and differences in massive data, and thus accelerating the system's data processing. Moreover, in the end of this article, an experiment was conducted on the IoT system of a certain university. Taking the system running 10 times as an example, the packet loss rate of the experimental group using DT technology was only 3.48%, while the packet loss rate of the control group running alone was 4.36%. This indicates that DT technology has improved the performance of the IoT system. This study highlights the role of digital twin technology in solving the low operational efficiency, diverse data, and data differences in data aggregation of the Internet of Things. It plays a significant role in improving the operational efficiency of the Internet of Things and improving the performance of the Internet of Things system.

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Clearing method of regional power spot market based on blockchain and distributed data security reading algorithm

Duan

Zhu

Gan

2023

International Journal of Emerging Electric Power Systems

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With the progress of society, the supply of electricity has become an inevitable choice for the development of all walks of life. The stability, safety, and economic dispatch of the electric energy system directly impact the entire country’s economic development, from national defense, military, and even people’s daily life, all closely associated with the smooth running of the network. In the aspect of power grid planning and operation, the economic security dispatching problem of power system is a very typical optimization problem. The problem is how to maximize the operating cost of the system under the premise of satisfying the system’s load limit and safety and stability. Due to the rapid development of power technology, the research on power system security and economic planning is essential. As an important means to promote China’s energy structure adjustment and promote the supply side structural reform, the regional spot electricity market is playing an increasingly important role in building a resource optimization allocation mechanism, improving China’s energy resource allocation efficiency, and promoting social and economic development. However, the development of China’s regional spot power market is still in its infancy, and the transaction price of the regional spot power market is quite different from that of other countries. It was given these problems, this article discusses the use of particle swarm algorithms for secure and economic scheduling of power systems in the context of securely reading blockchains and distributed data. The research results showed that: The introduction of environmental pollution penalty programs improved the priority dispatch of wind and photovoltaic power when considering environmental penalty programs and backup penalties for wind and photovoltaic power. The setting of the coefficient of the environmental penalty term depended on the designer’s emphasis on the priority scheduling of wind power and photovoltaic (PV) power generation (PG), and the standby capacity penalty clause achieved reasonable dispatch and utilization of wind power and PV PG, which reduced the dramatic fluctuations and intermittent volume of the system, and facilitated safe and consistent operation of the network. The research of this paper shows the positive relationship between the blockchain and distributed data security reading algorithm and the clearing method of regional spot power market, and points out a new method for its development.

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Design of Distributed Database System Based on Improved DES Algorithm

Cited by 4 publications

References 10 publications

Image Encryption Based on Hybrid Parallel Algorithm: DES-Present Using 2D-Chaotic System

Image Encryption Based on Hybrid Parallel Algorithm: DES-Present Using 2D-Chaotic System

Methods for aggregating multi‐source heterogeneous data in the IoT based on digital twin technology

Clearing method of regional power spot market based on blockchain and distributed data security reading algorithm

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