Global ETD Search
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Showing 1 to 10 of 10 for “"Symmetric encryption"”.
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Practical and Secure Searchable Symmetric Encryption Constructions
Searchable symmetric encryption (SSE) enables secure searching of encrypted databases (i.e., a set of documents) outsourced to an untrusted server. Dynamic SSE (DSSE) extends this to allow secure updates to the encrypted database. However, SSE constructions have a trade-off between security, …
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Exploiting Update Leakage in Searchable Symmetric Encryption
Dynamic Searchable Symmetric Encryption (DSSE) provides efficient techniques for securely searching and updating an encrypted database. However, efficient DSSE schemes leak some sensitive information to the server. Recent works have implemented forward and backward privacy as security properties to …
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High-dimensional quantum communication over deployed fiber
… two pre-authenticated participants to establish symmetric encryption keys over long distances, without making any assumptions about the computational abilities of an adversary. QKD commonly relies on the transmission and detection of single photons to distribute the secret keys, but the …
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Key-Based Authentication Scheme for eVTOL Drones Using Chebyshev Chaotic Maps
… as chaotic maps, hash functions, and the AES-256 encryption technique. The network members can securely generate all encryption keys without sharing secret data, which solves one of the main problems of the symmetric encryption scheme in the authentication service. In addition, compared with other …
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Secure Data Service Outsourcing with Untrusted Cloud
… improves the efficiency of traditional proxy re-encryption algorithm by integrating symmetric encryption and proxy re-encryption algorithms. With less computation cost on applying re-encryption operation directly on the encrypted data, our scheme allows flexible and efficient user revocation …
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Location Privacy In Emerging Network-Based Applications
… class of problems. This is because in general, encryption can be applied to protect the information being transmitted but the pattern of transmission is harder to hide due to other constraints. To defeat traffic analysis, it is necessary to identify those constraints and decide the trade-off …
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EFA (EVENT FLOW ARCHITECTURE) PRINCIPLES ILLUSTRATED THROUGH A SOFTWARE PLATFORM. Software architecture principles for IoT systems, implemented in a platform, addressing privacy, sharing, and fault tolerance
… contribution concerns a method of storing a symmetric encryption key combined with a peculiar retrieval and verification technique: this has resulted in an international patent, already registered. A fourth contribution concerns a new data classification model, which is particularly effective …
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Adaptive Encryption Techniques In Wireless Communication Channels With Tradeoffs Between Communication Reliability And Security
Encryption is a vital process to ensure the confidentiality of the information transmitted over an insecure wireless channel. However, the nature of the wireless channel tends to deteriorate because of noise, interference and fading. Therefore, a symmetrically encrypted transmitted signal will be …
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FPGA akcelerace AES-GCM pro IPsec šifrování
Tato práce se zabývá návrhem a implementací šifrovacího algoritmu AES-GCM určeného pro vysokorychlostní komunikaci v rámci protokolu IPSec. Návrh vychází z principů úplné paralelizace GCM, přičemž cílem je dosáhnout teoretické propustnosti alespoň 100 Gbps. Implementace byla realizována v jazyce …
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Webová aplikace pro šifrování souborů
Bakalářská práce se zabývá vytvořením webové aplikace pro šifrování souborů. V teoretické části jsou symetrické šifrovací algoritmy rozděleny na blokové a proudové. Vybrané šifry jsou popsány a jejich vlastnosti srovnány. Dále jsou rozebrány operační módy využívané blokovými šiframi. Vytvořená …