SafeDpi: A language for controlling mobile code safeDpi is a distributed version of the Picalculus, in which processes are located at dynamically created sites. Parametrised code may be sent between sites using so-called ports, which are essentially higher-order versions of Picalculus communication channels. A host location may protect itself by only accepting code which conforms to a given type associated to the incoming port. We define a sophisticated static type system for these ports, which restrict the capabilities and access rights of any processes launched by incoming code. Dependent and existential types are used to add flexibility, allowing the behaviour of these launched processes, encoded as process types, to depend on the host’s instantiation of the incoming code. We also show that a natural contextually defined behavioural equivalence can be characterised coinductively, using bisimulations based on typed actions. The characterisation is based on the idea of knowledge acquisition by a testing environment and makes explicit some of the subtleties of determining equivalence in this language of highly constrained distributed code.

References in zbMATH (referenced in 13 articles , 1 standard article )

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  1. Dezani-Ciancaglini, Mariangiola; Ghilezan, Silvia; Jakšić, Svetlana; Pantović, Jovanka: Types for role-based access control of dynamic web data (2011)
  2. Lenglet, Sergueï; Schmitt, Alan; Stefani, Jean-Bernard: Characterizing contextual equivalence in calculi with passivation (2011)
  3. Bugliesi, Michele; Colazzo, Dario; Crafa, Silvia; Macedonio, Damiano: A type system for discretionary access control (2009)
  4. Hym, Samuel: Mobility control via passports (2009)
  5. Lenglet, Sergueï; Schmitt, Alan; Stefani, Jean-Bernard: Howe’s method for calculi with passivation (2009)
  6. Maffeis, Sergio; Gardner, Philippa: Behavioural equivalences for dynamic web data (2008)
  7. Sewell, Peter; Leifer, James J.; Wansbrough, Keith; Nardelli, Francesco Zappa; Allen-Williams, Mair; Habouzit, Pierre; Vafeiadis, Viktor: Acute: high-level programming language design for distributed computation (2007)
  8. Yoshida, Nobuko: Type-based security for mobile computing integrity, secrecy and liveness (2006)
  9. Castagna, G.; Vitek, J.; Nardelli, F. Zappa: The seal calculus (2005)
  10. Hennessy, Matthew; Rathke, Julian; Yoshida, Nobuko: safeDpi: a language for controlling mobile code (2005)
  11. Schmitt, Alan; Stefani, Jean-Bernard: The Kell calculus: A family of higher-order distributed process calculi (2005)
  12. Hennessy, Matthew; Merro, Massimo; Rathke, Julian: Towards a behavioural theory of access and mobility control in distributed systems (2004)
  13. Hennessy, Matthew; Rathke, Julian; Yoshida, Nobuko: SafeDpi: A language for controlling mobile code (extended abstract) (2004)