scholarly journals Operational Semantics of Security Protocols

2005 ◽  
pp. 66-89 ◽  
Author(s):  
Cas Cremers ◽  
Sjouke Mauw
Keyword(s):  
Operational Semantics ◽  
Security Protocols

scholarly journals Language, Semantics, and Methods for Cryptographic Protocols

2000 ◽  
Vol 7 (18) ◽  
Author(s):  
Federico Crazzolara ◽  
Glynn Winskel
Keyword(s):  
Petri Net ◽  
Operational Semantics ◽  
Security Protocols ◽  
Cryptographic Protocols ◽  
Alternative Semantics ◽  
Language Semantics ◽  
Strand Spaces ◽  
Strong Relation

In this report we present a process language for security protocols together<br />with an operational semantics and an alternative semantics in terms of sets<br /> of events. The denotation of process is a set of events, and as each event specifies<br /> a set of pre- and postconditions, this denotation can be viewed as a Petri net.<br />This Petri-net semantics has a strong relation to both Paulson's inductive set<br />of rules [Pau98] and strand spaces [THG98c]. By means of an example we<br />illustrate how the Petri-net semantics can be used to prove properties such as<br />secrecy and authentication.

Towards a Standard for a Reliable Execution Environment for Security Protocols

2016 ◽  
Vol 2 (1) ◽  
pp. 78
Author(s):  
Mahalingam Ramkumar
Keyword(s):  
Information Systems ◽  
Full Advantage ◽  
Real World ◽  
Security Protocols ◽  
Low Complexity ◽  
High Integrity ◽  
Execution Environment ◽  
World Information ◽  
Digital Assets ◽  
Attack Models

Approaches for securing digital assets of information systems can be classified as active approaches based on attack models, and passive approaches based on system-models. Passive approaches are inherently superior to active ones. However, taking full advantage of passive approaches calls for a rigorous standard for a low-complexity-high-integrity execution environment for security protocols. We sketch broad outlines of mirror network (MN) modules, as a candidate for such a standard. Their utility in assuring real-world information systems is illustrated with examples.

scholarly journals Specifying and Executing User Agents in an Environment of Reasoning and RESTful Systems Using the Guard-Stage-Milestone Approach

2021 ◽  
Author(s):  
Tobias Käfer ◽  
Benjamin Jochum ◽  
Nico Aßfalg ◽  
Leonard Nürnberg
Keyword(s):  
Linked Data ◽  
Operational Semantics ◽  
Workflow Management ◽  
Management Systems ◽  
Workflow Management Systems ◽  
The Web

AbstractFor Read-Write Linked Data, an environment of reasoning and RESTful interaction, we investigate the use of the Guard-Stage-Milestone approach for specifying and executing user agents. We present an ontology to specify user agents. Moreover, we give operational semantics to the ontology in a rule language that allows for executing user agents on Read-Write Linked Data. We evaluate our approach formally and regarding performance. Our work shows that despite different assumptions of this environment in contrast to the traditional environment of workflow management systems, the Guard-Stage-Milestone approach can be transferred and successfully applied on the web of Read-Write Linked Data.

scholarly journals Persistent Stochastic Non-Interference

2021 ◽  
Vol 181 (1) ◽  
pp. 1-35
Author(s):  
Jane Hillston ◽  
Andrea Marin ◽  
Carla Piazza ◽  
Sabina Rossi
Keyword(s):  
Process Algebra ◽  
Operational Semantics ◽  
Evaluation Process ◽  
Decision Algorithm ◽  
Secure Systems ◽  
Information Flow Security ◽  
Structural Operational Semantics ◽  
Timing Properties ◽  
Functional Point ◽  
Security Property

In this paper, we study an information flow security property for systems specified as terms of a quantitative Markovian process algebra, namely the Performance Evaluation Process Algebra (PEPA). We propose a quantitative extension of the Non-Interference property used to secure systems from the functional point view by assuming that the observers are able to measure also the timing properties of the system, e.g., the response time of certain actions or its throughput. We introduce the notion of Persistent Stochastic Non-Interference (PSNI) based on the idea that every state reachable by a process satisfies a basic Stochastic Non-Interference (SNI) property. The structural operational semantics of PEPA allows us to give two characterizations of PSNI: one based on a bisimulation-like equivalence relation inducing a lumping on the underlying Markov chain, and another one based on unwinding conditions which demand properties of individual actions. These two different characterizations naturally lead to efficient methods for the verification and construction of secure systems. A decision algorithm for PSNI is presented and an application of PSNI to a queueing system is discussed.

Evaluation of Algorithms and Security Protocols to Mitigate the Risks in Commercial Transactions carried out by Public Companies

2020 ◽  
Author(s):  
Segundo Moises Toapanta Toapanta ◽  
Luis Enrique Mafla Gallegos ◽  
Alex Enrique Aranda Alvarado ◽  
Maximo Prado Solis
Keyword(s):  
Security Protocols ◽  
Public Companies
Sign in / Sign up

Export Citation Format

Share Document