Anzeige
Erschienen in:
2012 | OriginalPaper | Buchkapitel
Deciding Selective Declassification of Petri Nets
verfasst von : Eike Best, Philippe Darondeau
Erschienen in: Principles of Security and Trust
Verlag: Springer Berlin Heidelberg
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
This paper considers declassification, as effected by
downgrading
actions
D
, in the context of
intransitive non-interference
encountered in systems that consist of
high-level
(secret) actions
H
and
low-level
(public) actions
L
. In a previous paper, we have shown the decidability of a strong form of declassification, by which
D
contains only a single action
d
∈
D
declassifying all
H
actions at once. The present paper continues this study by considering
selective declassification
, where each transition
d
∈
D
can declassify a subset
H
(
d
) of
H
. The decidability of this more flexible, application-prone declassification framework is proved in the context of (possibly unbounded) Petri nets with possibly infinite state spaces.