Lattice-based access control: Difference between revisions

Revision as of 16:39, 31 May 2009

Latest revision as of 12:40, 9 July 2024

(22 intermediate revisions by 17 users not shown)

Line 1:

{{Inline citations|date=July 2024}}

In [[computer security]], '''lattice-based access control''' ('''LBAC''') is a complex [[access control]] based on the interaction between any combination of '''objects''' (such as resources, computers, and applications) and '''subjects''' (such as individuals, groups or organizations).

In [[computer security]], '''lattice-based access control''' ('''LBAC''') is a complex [[access control]] model based on the interaction between any combination of '''objects''' (such as resources, computers, and applications) and '''subjects''' (such as individuals, groups or organizations).

In this type of label-based [[mandatory access control]] model, a [[lattice (order)|lattice]] is used to define the levels of security that an object may have and that a subject may have access to. The subject is only allowed to access an object if the security level of the subject is greater than or equal to that of the object.

Line 5 ⟶ 7:

Mathematically, the security level access may also be expressed in terms of the lattice (a [[partial order]] set) where each object and subject have a greatest lower bound (meet) and least upper bound (join) of access rights. For example, if two subjects ''A'' and ''B'' need access to an object, the security level is defined as the meet of the levels of ''A'' and ''B''. In another example, if two objects ''X'' and ''Y'' are combined, they form another object ''Z'', which is assigned the security level formed by the join of the levels of ''X'' and ''Y''.

LBAC is also known as a label-based access control (or ''rule-based access control'') restriction as opposed to [[role-based access control]] (RBAC).

Lattice based access control models were first formally defined by [[Dorothy E. Denning|Denning]] (1976); see also Sandhu (1993).

== See also ==

{{columns-list|colwidth=30em|

* [[Access control list]]

* [[MandatoryAttribute-based access control]] (ABAC)

* [[Bell-La PadulaBell–LaPadula model]]

* [[Biba Model]]

* [[Capability-based security]]

* [[Computer security model]]

* [[Context-based access control]] (CBAC)

* [[Discretionary access control]] (DAC)

* [[Graph-based access control]] (GBAC)

* [[Mandatory access control]] (MAC)

* [[Organisation-based access control]] (OrBAC)

* [[Risk-based authentication]]

* [[Role-based access control]] (RBAC)

* [[RSBAC|Rule-set-based access control (RSBAC)]]

}}

== References ==

{{reflist}}

*{{cite journal

| author = Denning, Dorothy E.

| authorlink = Dorothy E. Denning

| title = [http://faculty.nps.edu/dedennin/publications/lattice76.pdf A lattice model of secure information flow]

| journal = [[Communications of the ACM]]

| volume = 19

Line 20 ⟶ 40:

| year = 1976

| pages = 236–243

| doi = 10.1145/360051.360056}}

| url=http://faculty.nps.edu/dedennin/publications/lattice76.pdf}}

*{{cite journal

| author = Sandhu, Ravi S.

| title = [http://www.winlab.rutgers.edu/~trappe/Courses/AdvSec05/access_control_lattice.pdf Lattice-based access control models]

| journal = [[IEEE Computer]]

| year = 1993

Line 30 ⟶ 50:

| issue = 11

| pages = 9–19

| doi = 10.1109/2.241422}}

| url=http://www.winlab.rutgers.edu/~trappe/Courses/AdvSec05/access_control_lattice.pdf}}

== See also ==

*[[Mandatory access control]]

*[[Bell-La Padula model]]

*[[Biba Model]]

*[[Computer security model]]

[[Category:Computer security models]]

[[Category:Lattice theory]]

[[Category: Access control]]

{{CompuComputer-langsecurity-stub}}

[[fr:Contrôle d'accès basé sur Lattice]]