By Shiu-Kai Chin
"Developed from the authors' classes at Syracuse collage and the U.S. Air strength examine Laboratory, entry regulate, safeguard, and belief: A Logical process equips readers with an entry keep an eye on good judgment they could use to specify and ensure their safeguard designs. through the textual content, the authors use a unmarried entry regulate common sense in keeping with an easy propositional modal logic.
The first a part of the publication provides the syntax and semantics of entry keep watch over common sense, simple entry regulate recommendations, and an creation to confidentiality and integrity rules. the second one part covers entry regulate in networks, delegation, protocols, and using cryptography. within the 3rd part, the authors specialize in and digital machines. the ultimate half discusses confidentiality, integrity, and role-based entry control.
Taking a logical, rigorous method of entry keep watch over, this booklet exhibits how common sense is an invaluable device for interpreting defense designs and spelling out the stipulations upon which entry keep watch over judgements rely. it really is designed for computing device engineers and desktop scientists who're liable for designing, imposing, and verifying safe desktop and data systems."--Pub. desc. Read more...
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"Developed from the authors' classes at Syracuse college and the U. S. Air strength learn Laboratory, entry keep an eye on, defense, and belief: A Logical procedure equips readers with an entry keep an eye on common sense they could use to specify and confirm their protection designs. in the course of the textual content, the authors use a unmarried entry keep an eye on common sense in accordance with an easy propositional modal good judgment.
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Additional info for Access control, security, and trust : a logical approach
When given an informal statement in English, translate it into a wellformed formula of the access-control logic. • When given a Kripke structure and a formula of the access-control logic, determine the set of worlds in which the formula is true. Analysis • When given a formula and a Kripke structure that satisfies it, prove that the Kripke structure satisfies it. Synthesis • When given a satisfiable formula, construct a Kripke structure that satisfies the formula. , fails to satisfy) the formula.
6 The following syntactic derivation demonstrates that (Jill says (r ⊃ (p ∨ q))) is a well-formed formula: Form (Princ says Form) (PName says Form) (Jill says Form) (Jill says (Form ⊃ Form)) (Jill says (PropVar ⊃ Form)) (Jill says (r ⊃ Form)) (Jill says (r ⊃ (Form ∨ Form))) (Jill says (r ⊃ (PropVar ∨ Form))) (Jill says (r ⊃ (p ∨ Form))) (Jill says (r ⊃ (p ∨ PropVar))) (Jill says (r ⊃ (p ∨ q))) ♦ In contrast, the following examples are not well-formed formulas, for the reasons stated: • Orly & Mitch is a principal expression, but not an access-control formula.
Axioms can always be written down. 2, where we introduce formal proofs. For now, however, we discuss each of the logical rules in turn. 1 The Taut Rule The simplest rule is the axiom Taut: Taut ϕ if ϕ is an instance of a prop-logic tautology This axiom states that any instance of a tautology from propositional logic can be introduced at any time as a derivable statement in the access-control logic. To understand what this rule means, first recall that a propositional-logic tautology is a formula that evaluates to true under all possible interpretations of its propositional variables.
Access control, security, and trust : a logical approach by Shiu-Kai Chin