Publications

Authors:

Merro, Massimo; Hennessy, Matthew

Title:

Bisimulation congruences in safe ambients

Year:

2002

Type of item:

Contributo in atti di convegno

Tipologia ANVUR:

Contributo in Atti di convegno

Language:

Inglese

Format:

A Stampa

Name of journal:

ACM SIGPLAN NOTICES

ISSN of journal:

1523-2867

N° Volume:

37

Series:

ACM SIGPLAN Notices

Number or Folder:

1

Congresso:

29th ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages (POPL 2002)

Place:

Portland - OR, USA

Period:

January 2002

ISBN:

9781581136289

Page numbers:

71-80

Keyword:

Distributed Computing; Agent Mobility; Bisimulation

Short description of contents:

We develop a semantics theory for SAP, a variant of Levi and Sangiorgi’s Safe Ambients, SA. The dynamics of SA relies upon capabilities (and co-capabilities) exercised by mobile agents, called ambients, to interact with each other. These capabilities contain references, the names of ambients with which they wish to interact. In SAP we generalise the notion of capability: in order to interact with an ambient n, an ambient m must exercise a capability indicating both n and a password h to access n; the interaction between n and m takes place only if n is willing to perform a corresponding co-capability with the same password h. The name h can also be lookedupon as a port to access ambient n via port h. In SAP by managing passwords/ports, for example generating new ones and distributing themselectively, an ambient may now program who may migrate into its computation space, and when. Moreover in SAP an ambient may provide different services/resources depending on the port accessed by the incoming clients. Then, we give an lts-based operational semantics for SAP and a labelled bisimulation equivalence which is proved to coincide with reduction barbed congruence.We use our notion of bisimulation to prove a set of algebraic laws which are subsequently exploited to prove more significant examples.

Product ID:

31

Handle IRIS:

11562/31

Deposited On:

November 14, 2012

Last Modified:

November 11, 2022

Bibliographic citation:

Merro, Massimo; Hennessy, Matthew, Bisimulation congruences in safe ambients in «ACM SIGPLAN NOTICES» vol. 37 n. 1 (ACM SIGPLAN Notices)  in 29th ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages (POPL'02) , Proceedings of "29th ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages (POPL 2002)" , Portland - OR, USA , January 2002 , 2002 , pp. 71-80

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