Results 21 to 30 of about 3,510 (286)

Refinements and Extensions of Ziv’s Model of Perfect Secrecy for Individual Sequences [PDF]

open access: yesEntropy
We refine and extend Ziv’s model and results regarding perfectly secure encryption of individual sequences. According to this model, the encrypter and the legitimate decrypter share a common secret key that is not shared with the unauthorized ...
Neri Merhav
doaj   +2 more sources

Shannon Perfect Secrecy in a Discrete Hilbert Space

open access: yes2020 IEEE International Conference on Quantum Computing and Engineering (QCE), 2020
7 pages, 1 figure, presented and published by ...
Randy Kuang, Nicolas Bettenburg
openaire   +3 more sources

Novel Noise Injection Scheme to Guarantee Zero Secrecy Outage under Imperfect CSI

open access: yesEntropy, 2023
The paper proposes a novel artificial noise (AN) injection strategy in multiple-input single-output multiple-antenna-eavesdropper (MISOME) systems under imperfect channel estimation at the legitimate channel to achieve zero secrecy outage probability ...
Hien Q. Ta, Lam Cao, Hoon Oh
doaj   +1 more source

On the Beneficial Role of a Finite Number of Scatterers for Wireless Physical Layer Security

open access: yesIEEE Access, 2020
We show that for a legitimate communication under multipath quasi-static fading with a reduced number of scatterers, it is possible to achieve perfect secrecy even in the presence of a passive eavesdropper for which no channel state information (CSI) is ...
Pablo Ramirez-Espinosa   +2 more
doaj   +1 more source

Drone Secure Communication Protocol for Future Sensitive Applications in Military Zone

open access: yesSensors, 2021
Unmanned Aerial Vehicle (UAV) plays a paramount role in various fields, such as military, aerospace, reconnaissance, agriculture, and many more. The development and implementation of these devices have become vital in terms of usability and reachability.
Yongho Ko   +5 more
doaj   +1 more source

Perfect Omniscience, Perfect Secrecy, and Steiner Tree Packing [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
We consider perfect secret key generation for a ``pairwise independent network'' model in which every pair of terminals share a random binary string, with the strings shared by distinct terminal pairs being mutually independent. The terminals are then allowed to communicate interactively over a public noiseless channel of unlimited capacity.
Sirin Nitinawarat, Prakash Narayan
openaire   +3 more sources

Counter Mode of the Shannon Block Cipher Based on MPF Defined over a Non-Commuting Group

open access: yesMathematics, 2022
In this paper, we present a counter mode of a Shannon block cipher based on the matrix power function. We make use of the matrix power function to define a single round symmetric cipher.
Aleksejus Mihalkovich   +2 more
doaj   +1 more source

Keys under doormats - mandating insecurity by requiring government access to all data and communications [PDF]

open access: yes, 2015
Twenty years ago, law enforcement organizations lobbied to require data and communication services to engineer their products to guarantee law enforcement access to all data.
Harold Abelson   +32 more
core   +1 more source

Perfect Secrecy System Based on Chaotic Key Generator

open access: yesIraqi Journal of Information & Communication Technology, 2018
Shannon defines perfect secrecy for a cryptographic system as such a cryptographic system in which the ciphertext yields no possible information about the plaintext.
Mahmood Khalel Ibrahem
doaj   +1 more source

Artificial Noise Aided Secure Transmission for Active RIS-Aided NOMA Networks

open access: yesIEEE Access, 2023
A secrecy rate maximization problem for active reconfigurable intelligent surface (RIS) aided non-orthogonal multiple access networks has been studied in this paper. Assuming that the perfect channel state information is available, we aim to maximize the
Fengming Yang, Weiran Guo, Jianxin Dai
doaj   +1 more source

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