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The security of our data stores is underestimated in current practice, which resulted in many large-scale data breaches. To change the status quo, this paper presents the design of ShieldDB, an encrypted document database. ShieldDB adapts…

密码学与安全 · 计算机科学 2021-11-09 Viet Vo , Xingliang Yuan , Shi-Feng Sun , Joseph K. Liu , Surya Nepal , Cong Wang

We show that in device independent quantum key distribution protocols the privacy of randomness is of crucial importance. For sublinear test sample sizes even the slightest guessing probability by an eavesdropper will completely compromise…

量子物理 · 物理学 2013-09-12 Marcus Huber , Marcin Pawlowski

Process mining employs event data extracted from different types of information systems to discover and analyze actual processes. Event data often contain highly sensitive information about the people who carry out activities or the people…

密码学与安全 · 计算机科学 2022-09-30 Majid Rafiei , Gamal Elkoumy , Wil M. P. van der Aalst

Data confidentiality is an important requirement for clients when outsourcing databases to the cloud. Trusted execution environments, such as Intel SGX, offer an efficient, hardware-based solution to this cryptographic problem. Existing…

密码学与安全 · 计算机科学 2020-02-13 Benny Fuhry , Jayanth Jain H A , Florian Kerschbaum

Data mining is the way toward mining fascinating patterns or information from an enormous level of the database. Data mining additionally opens another risk to privacy and data security.One of the maximum significant themes in the research…

密码学与安全 · 计算机科学 2023-05-01 Dhinakaran D , Joe Prathap P. M

Extended Asynchronous DRAM Refresh (eADR) proposed by Intel extends the persistence domain from the Non-Volatile Memory (NVM) to CPU caches and offers the persistence guarantee. Due to allowing lazy persistence and decreasing the amounts of…

密码学与安全 · 计算机科学 2023-07-06 Jianming Huang , Yu Hua

The widespread adoption of large language models (LLMs) has raised concerns regarding data privacy. This study aims to investigate the potential for privacy invasion through input reconstruction attacks, in which a malicious model provider…

机器学习 · 计算机科学 2024-05-24 Zhipeng Wan , Anda Cheng , Yinggui Wang , Lei Wang

Anonymity networks allow messaging with metadata privacy, providing better privacy than popular encrypted messaging applications. However, contacting a user on an anonymity network currently requires knowing their public key or similar…

密码学与安全 · 计算机科学 2023-11-21 Ceren Kocaoğullar , Daniel Hugenroth , Martin Kleppmann , Alastair R. Beresford

Recent studies improve on-device language model (LM) inference through end-cloud collaboration, where the end device retrieves useful information from cloud databases to enhance local processing, known as Retrieval-Augmented Generation…

密码学与安全 · 计算机科学 2025-03-18 Shuaifan Jin , Xiaoyi Pang , Zhibo Wang , He Wang , Jiacheng Du , Jiahui Hu , Kui Ren

In this work, we investigate the problem of secure broadcasting over block-fading wiretap channels with limited channel knowledge at the transmitter. More particularly, we analyze the effect of having a finite rate feedback on the…

信息论 · 计算机科学 2020-04-22 Amal Hyadi , Zouheir Rezki , Mohamed-Slim Alouini

We consider the problem of sharing sensitive or valuable files across users while partially relying on a common, untrusted third-party, e.g., a Cloud Storage Provider (CSP). Although users can rely on a secure peer-to-peer (P2P) channel for…

密码学与安全 · 计算机科学 2022-01-27 Hadi Sehat , Elena Pagnin , Daniel E. Lucani

In this paper, we investigate the index coding problem in the presence of an eavesdropper. Messages are to be sent from one transmitter to a number of legitimate receivers who have side information about the messages, and share a set of…

信息论 · 计算机科学 2016-11-17 Mohammad Mahdi Mojahedian , Mohammad Reza Aref , Amin Gohari

The broadcast channel (BC) with one common and two private messages with leakage constraints is studied, where leakage rate refers to the normalized mutual information between a message and a channel symbol string. Each private message is…

信息论 · 计算机科学 2017-05-30 Ziv Goldfeld , Gerhard Kramer , Haim H. Permuter

Data is the central asset of today's dynamically operating organization and their business. This data is usually stored in database. A major consideration is applied on the security of that data from the unauthorized access and intruders.…

数据库 · 计算机科学 2013-08-25 Manish Sharma , Atul Chaudhary , Santosh Kumar

Encryption and Decryption is the process of sending a message in a ciphered way that appears meaningless and could be deciphered using a key for security purposes to avoid data breaches. This paper expands on the previous work on…

密码学与安全 · 计算机科学 2026-01-16 Mithil Bavishi , Anuj Bohra , Kushal Vadodaria , Abhinav Bohra , Neha Katre , Ramchandra Mangrulkar , Vinaya Sawant

With meteoric developments in communication systems and data storage technologies, the need for secure data transmission is more crucial than ever. The level of security provided by any cryptosystem relies on the sensitivity of the private…

密码学与安全 · 计算机科学 2020-11-03 Unnikrishnan Menon , Anirudh Rajiv Menon , Atharva Hudlikar

We give a security proof of quantum cryptography based entirely on entanglement purification. Our proof applies to all possible attacks (individual and coherent). It implies the security of cryptographic keys distributed with the help of…

量子物理 · 物理学 2016-09-08 Hans Aschauer , Hans J. Briegel

The complexity of modern processor architectures has given rise to sophisticated interactions among their components. Such interactions may result in potential attack vectors in terms of side channels, possibly available to user-land…

密码学与安全 · 计算机科学 2022-11-28 Ahmad Ibrahim , Hamed Nemati , Till Schlüter , Nils Ole Tippenhauer , Christian Rossow

Secure communications are playing increasing roles in society, particularly in finance, journalism, and military projects. Current methods of securing e-mail and similar messaging methods rely on encryption of the message body, but the…

密码学与安全 · 计算机科学 2014-11-25 H. Bjorgvinsdottir , P. M. Bentley

Dynamic Searchable Encryption (DSE) has emerged as a solution to efficiently handle and protect large-scale data storage in encrypted databases (EDBs). Volume leakage poses a significant threat, as it enables adversaries to reconstruct…

密码学与安全 · 计算机科学 2024-03-05 Dongli Liu , Wei Wang , Peng Xu , Laurence T. Yang , Bo Luo , Kaitai Liang