Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 30 for “"Data encryption"”.
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IoT data encryption algorithm for security
This research project is about encryption simulation for IoT data. It is important to enhance the security system when sending and receiving the IoT data. Some of these data, especially the health information for a particular person is very sensitive. Therefore, there is a need to encrypt and …
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Performance evaluation for different data encryption algorithms on wireless sensor network (WSN)
… evaluate various different algorithms used image encryption in WSN. The algorithms considered are AES, SF and SIT algorithms. The encryption algorithms are evaluated in turn by applying them to various images, separately. The performance metrics studied are the energy dissipation, execution time, …
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Error rate performance analysis of stream and block ciphers in a digital mobile communication channel.
This thesis analyses the effect of encrypting data on the bit error rate at the receiver. Block and stream cipher modes based on the Data Encryption Standard (DES) are examined. More specifically, Electronic Code Book (ECB), Cipher Block Chaining (CBC), Output FeedBack (OFB) and Cipher FeedBack …
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Physical-Security for Wireless with Orbital Angular Momentum Wave
… and an ever-increasing number of digital data are transmitted day to day, securing data has emerged as a major field of research. Conventional cryptography in higher layers of protocol stack has been studied as a data protection technique from an unauthorized party by converting secret …
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Search over Encrypted Data in Cloud Computing
… efficient computation services. However, moving data and applications into the cloud exposes a privacy leakage risk of the user data. As the growing awareness of data privacy, more and more users begin to choose proactive protection for their data in the cloud through data encryption. One major …
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DEFY: A Deniable File System for Flash Memory
<p>While solutions for file system encryption can prevent an adversary from determining the contents of files, in situations where a user wishes to hide even the existence of data, encryption alone is not enough. Indeed, encryption may draw attention to those files, as they most likely contain …
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Security for networked smart healthcare systems: A systematic review
… Techniques that have been used include data encryption and biometric access. In addition, blockchain is an emerging security technology that is expected to address the security issues due to its distributed and decentralized architecture which is similar to that of smart healthcare …
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Identifying Application Protocols in Computer Networks Using Vertex Profiles
… applications are being executed, but the use of data encryption techniques and non-standard port numbers presents difficulties that must be overcome. To that end, this thesis introduces a novel method to identify application protocols based on the analysis of application graphs, which model …
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Neural Cryptanalysis for Cyber-Physical System Ciphers
… In addition to reproducing tests run with the Data Encryption Standard, this work applies neural cryptanalysis to round-reduced versions and components of the SIMON/SPECK family of block ciphers and the Advanced Encryption Standard. This methodology generated a metric able to rank the relative …
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A Key Management Architecture for Securing Off-Chip Data Transfers on an FPGA
Data security is becoming ever more important in embedded and portable electronic devices. The sophistication of the analysis techniques used by attackers is amazingly advanced. Digital devices' external interfaces to memory and communications interfaces to other digital devices are vulnerable to …
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SMARTPHONE-BASED COMPRESSION-INDUCED IMAGING SYSTEM DATA SECURITY
… app, we obtain tactile images, and we developed data security methodology in this thesis. The first version of the system (SCIS V1) is developed using the symmetric key encryption, which protects all medical data from hackers. AES (Advanced Encryption Standard) encryption method is used to …
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A Study on Energy Harvesters for Physical Unclonable Functions and Random Number Generation
… increase over the years, securing personal data becomes a growing issue. Physical unclonable functions (PUFs) and random number generators (RNGs) provide methods to generate security keys for data encryption. Transducers used in the energy harvesting systems of wireless sensor nodes, can …
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Secured and Versatile IoT Connectivity: A Novel LoRa-Based Approach with Enhanced Encryption, Key Exchange, Real-Time Data Visualization, and Dynamic Storage Integration
… ASCON cryptographic standard and the Advanced Encryption Standard (AES) 256, this project enhances the security of IoT networks within a cost-effective framework. To this end, Long Range (LoRa) technology, a low-power wide-area network protocol, serves as the primary communication technology. …
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Physical Layer Security in Millimeter-Wave Communication
… wireless communication, in addition to the data encryption with cryptographic keys, physical layer security (PLS) is another effective technique to achieve secret communication. The inherent randomness of wireless channels are exploited to ensure the confidential information carried by the …
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System Support for End-to-End Performance Management
… on networked machines in distributed enterprise data centers. Service paths cross multiple levels of abstraction because they link end user application components like web browsers with system services like http providing communications with embedded services like hardware-supported data …
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SCAN: ΜΙΑ ΓΛΩΣΣΑ ΓΙΑ ΑΚΟΛΟΥΘΙΑΚΗ ΠΡΟΣΠΕΛΑΣΗ ΔΙΔΙΑΣΤΑΤΩΝ ΔΕΔΟΜΕΝΩΝ
… BUT AT THE SAME TIME THEY STAND AS GENERIC 2-D DATA ACCESSING STRATEGIES.IN THIS DISSERTATION A FORMAL DEFINITION OF SCAN IS FIRST GIVEN, BY PRESENTINGTHE SYNTACTICAL AND SEMANTIC ISSUES OF THE LANGUAGE. ITS UNDERLYING MATHEMATICAL MODEL AND GENERAL PROPERTIES ARE NEXT GIVEN. THE ALGEBRAIC …
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An Expert-based Approach for Demand Curtailment Allocation Subject to Communications and Cyber Security Limitations
… cyber security technologies based on different encryption methods - 3EDS (Triple Data Encryption Standard), AES (Advanced Encryption Standard), Blowfish, etc. - in deploying the proposed demand curtailment allocation strategy are analyzed.
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An Investigation of Differential Power Analysis Attacks on FPGA-based Encryption Systems
… As this happens, the ability to keep the data being processed or stored on the device secure grows more important. Power analysis attacks involve cryptographic hardware leaking information during encryption because power consumption is correlated to the key used for encryption. Power …
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Optically Switched Quantum Key Distribution Network
Encrypted data transmission is becoming increasingly more important as information security is vital to modern communication networks. Quantum Key Distribution (QKD) is a promising method based on the quantum properties of light to generate and distribute unconditionally secure keys for use in …
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