Results 1 to 10 of about 2,068,763 (163)

Access structures determined by uniform polymatroids

open access: yesJournal of Mathematical Cryptology, 2023
In this article, all multipartite access structures obtained from uniform integer polymatroids were investigated using the method developed by Farràs, Martí-Farré, and Padró. They are matroid ports, i.e., they satisfy the necessary condition to be ideal.
Kawa Renata, Kula Mieczysław
doaj   +3 more sources

The Access Structure in Learner's Dictionaries*

open access: yesLexikos, 2011
<p>Abstract: Dictionaries have to be compiled in accordance with specific target users and dictionarygoals. User orientation is, however, not the only criterion for measuring the success of adictionary.
Mariza Steyn
doaj   +5 more sources

The complexity of the connected graph access structure on seven participants

open access: yesJournal of Mathematical Cryptology, 2017
In this paper, we study an important problem in secret sharing that determines the exact value or bound for the complexity. First, we use the induced subgraph complexity of the graph G with access structure Γ to obtain a lower bound on the complexity of ...
Hadian Dehkordi Massoud, Safi Ali
doaj   +2 more sources

The accessibility of an access structure [PDF]

open access: yesRAIRO - Theoretical Informatics and Applications, 2006
Summary: In secret sharing, different access structures have different difficulty degrees for acceding to the secret. We give a numerical measure of how easy or how difficult is to recover the secret, depending only on the structure itself and not on the particular scheme used for realizing it. We derive some consequences.
Francesc Carreras   +2 more
openaire   +1 more source

Design of Memory Access Structure for Coarse-Grained Reconfigurable Array with Decoupled Access Execute [PDF]

open access: yesJisuanji gongcheng, 2021
Coarse-Grained Reconfigurable Array(CGRA) architecture has both flexibility and efficiency,but its characteristics of high computing throughput also brings pressure to memory.In the case of the relative fixed bandwidth of off-chip Dynamic Random Access ...
HONG Tu, JING Naifeng
doaj   +1 more source

The Coalition Structure Core is Accessible [PDF]

open access: yesSSRN Electronic Journal, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
László Á. Kóczy, Luc Lauwers
openaire   +4 more sources

Attribute-based encryption schema with group signatures

open access: yes网络与信息安全学报, 2019
Cipher text-policy attribute-based encryption schema(CP-ABE) is widely used in protection of sensitive data. In CP-ABE, When the users access the cipher text, the access structure and the cipher text were sent to the users.
ZHANG Xinglan, CUI Yao
doaj   +3 more sources

Structural Accessibility and Structural Observability of Nonlinear Networked Systems [PDF]

open access: yesIEEE Transactions on Network Science and Engineering, 2020
The classical notions of structural controllability and structural observability are receiving increasing attention in Network Science, since they provide a mathematical basis to answer how the network structure of a dynamic system affects its controllability and observability properties.
Marco Tulio Angulo   +2 more
openaire   +3 more sources

An efficient multiversion access structure [PDF]

open access: yesIEEE Transactions on Knowledge and Data Engineering, 1997
An efficient multiversion access structure for a transaction-time database is presented. Our method requires optimal storage and query times for several important queries and logarithmic update times. Three version operations-inserts, updates, and deletes-are allowed on the current database, while queries are allowed on any version, present or past ...
Peter J. Varman, Rakesh M. Verma
openaire   +1 more source

CP-ABE Scheme Using Selectively Hidden Tree Access Structure [PDF]

open access: yesJisuanji gongcheng, 2020
Hidden access structure is a secure operation of Ciphertext Policy Attribute Base Encryption(CP-ABE),which can effectively prevent the leakage of sensitive information.However,tree access structure used by existing CP-ABE schemes are either completely ...
HAN Shuyan, Nurmamat Helil
doaj   +1 more source

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