PT Journal
AU Barbanera, F
   Dezani-Ciancaglini, M
   Salvo, I
   Sassone, V
TI A Type Inference Algorithm for Secure Ambients
SO Electronic Notes in Theoretical Computer Science
PY 2002
BP 83
EP 101
VL 62
DI 10.1016/S1571-0661(04)00321-4
AB We consider a type discipline for the Ambient Calculus that associates ambients with security levels and constrains them to be traversed by or opened in ambients of higher security clearance only. We present a bottom-up algorithm that, given an untyped process P, computes a minimal set of constraints on security levels such that all actions during runs of P are performed without violating the security level priorities. Such an algorithm appears to be a prerequisite to use type systems to ensure security properties in the web scenario.
ER