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| Content Provider | ACM Digital Library |
|---|---|
| Author | Hennessy, Matthew Riely, James |
| Copyright Year | 2002 |
| Abstract | We propose an extension of the asynchronous π-calculus in which a variety of security properties may be captured using types. These are an extension of the input/output types for the π-calculus in which I/O capabilities are assigned specific security levels. The main innovation is a uniform typing system that, by varying slightly the allowed set of types, captures different notions of security.We first define a typing system that ensures that processes running at security level σ cannot access resources with a security level higher than σ. The notion of access control guaranteed by this system is formalized in terms of a Type Safety Theorem.We then show that, by restricting the allowed types, our system prohibits implicit information flow from high-level to low-level processes. We prove that low-level behavior can not be influenced by changes to high-level behavior. This is formalized as a $\textit{noninterference}$ theorem with respect to may testing. |
| Starting Page | 566 |
| Ending Page | 591 |
| Page Count | 26 |
| File Format | |
| ISSN | 01640925 |
| e-ISSN | 15584593 |
| DOI | 10.1145/570886.570890 |
| Volume Number | 24 |
| Issue Number | 5 |
| Journal | ACM Transactions on Programming Languages and Systems (TOPLAS) |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2002-09-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Distributed process language I/O subtyping Information flow May testing Noninterference Pi-calculus Security Security types |
| Content Type | Text |
| Resource Type | Article |
| Subject | Software |
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